Class Tuple
- java.lang.Object
-
- com.streambase.sb.Tuple
-
- All Implemented Interfaces:
CloneableData
,Serializable
,Cloneable
- Direct Known Subclasses:
CompiledTuple
public abstract class Tuple extends Object implements Cloneable, CloneableData, Serializable
An class that represents a Tuple of StreamBase data.To create a new
Tuple
object, use theSchema.createTuple()
method on aSchema
instance.The
DataType
of each Field must be appropriate for the get and set methods invoked on the Field. For example, thegetDouble(Schema.Field)
&setDouble(Schema.Field, double)
methods work only on double fields. ThesetField(Schema.Field, Object)
will do default conversions from different types.For performance-critical paths, use the type-specific get and set methods that take a parameter of type
Schema.Field
(as opposed to the the methods that take an int or a String).Note that all methods accepting a
Schema.Field
argument will throw anIllegalArgumentException
if the Field object was not obtained from theSchema
associated with thisTuple
instance (getSchema()
).This class is not thread safe. If instances of this class are accessed from multiple threads, access must be synchronized.
Note: Serializations of instances of this class that are created (e.g., by using
ObjectOutputStream
) in one version of StreamBase in general will not be deserializable in any other version of StreamBase.Note: The Serialization feature is DEPRECATED and will be removed in a future release.
- See Also:
- Serialized Form
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
Tuple.DefaultTupleFormatter
A default formatter that converts each type to String using Java default String conversions.static interface
Tuple.SetResult
An interface containing flags returned from certain setXXXX callsstatic interface
Tuple.TupleFormatter
This interface is not public API, and should not be implemented by users.
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Field Summary
Fields Modifier and Type Field Description protected static int
CREATE_IF_NULL
during a get create tuple if it is nullstatic Tuple
EMPTY_TUPLE
An empty tupleprotected static int
NO_FLAGS
no flagsstatic String
NULL_STRING
The default String representation of a null valued field (value "null")protected static int
THROW_ON_NULL
during a get throw an exception on null
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Method Summary
All Methods Static Methods Instance Methods Abstract Methods Concrete Methods Deprecated Methods Modifier and Type Method Description protected void
checkType(Schema.Field resolvedField, DataType dataType)
Check typeprotected int
checkTypeAndNonNull(Schema.Field resolvedField, DataType dataType)
check the type and make sure it is non nullabstract void
clear()
Sets all of this tuple's fields to null values.Tuple
clone()
Clone this tuple, the new tuple will not share any buffers or data with the originalvoid
copyField(Schema.Field sourceField, Tuple destTuple, Schema.Field destField)
Copy the field from this tuple to the destination tupleprotected void
copyTuple(Tuple sourceTuple)
copy the source tuple to this tupleabstract Tuple
createReadOnlyTuple()
Return a new tuple that is guaranteed to be read onlyabstract Tuple
createWritableTuple()
Return a new tuple that is guaranteed to be writableboolean
equals(Object obj)
Test whether the given object is equal to this one.Tuple
getAllocatedTuple(int fieldIndex)
Return a reference (not a copy) to the specified nested tuple field.Tuple
getAllocatedTuple(Schema.Field field)
Return a reference (not a copy) to the specified nested tuple field.Tuple
getAllocatedTuple(String fieldPathName)
Return a reference (not a copy) to the specified nested tuple field.ByteArrayView
getBlobBuffer(int fieldIndex)
Return a ByteArrayView for a given blob field.ByteArrayView
getBlobBuffer(Schema.Field field)
Return a ByteArrayView for a given blob field.ByteArrayView
getBlobBuffer(String fieldPathName)
Return a ByteArrayView for a given blob field.boolean
getBoolean(int fieldIndex)
Return the value of the boolean field at a specified field index.boolean
getBoolean(Schema.Field field)
Return the value of a specified boolean field.boolean
getBoolean(String fieldPathName)
Return the value of a named boolean field.Tuple
getCapture(int fieldIndex)
Return the value of the named capture field.Tuple
getCapture(Schema.Field field)
Return the value of the named capture field.Tuple
getCapture(String fieldPathName)
Return the value of the named capture field.protected abstract Tuple
getCaptureImpl(Schema.Field field)
Get capture fielddouble
getDouble(int fieldIndex)
Return the value of the double field at a specified field index.double
getDouble(Schema.Field field)
Return the value of a specified double field.double
getDouble(String fieldPathName)
Return the value of a named double field.Object
getField(int fieldIndex)
Return the value of the field at a specified field index.Object
getField(Schema.Field field)
Return the value of a specified field.Object
getField(String fieldPathName)
Return the value of a named field.String
getFieldAsString(Schema.Field field, Tuple.TupleFormatter formatter)
Get the current field as a human readable string, using theTuple.TupleFormatter
provided.Map<String,Object>
getFields()
Deprecated.usetoMapView()
Function
getFunction(int fieldIndex)
Return the value of the function field at a specified field index.Function
getFunction(Schema.Field field)
Return the value of the given function field.Function
getFunction(String fieldName)
Return the value of the named function field.int
getInt(int fieldIndex)
Return the value of the int field at a specified field index.int
getInt(Schema.Field field)
Return the value of a specified int field.int
getInt(String fieldPathName)
Return the value of a named int field.List<?>
getList(int fieldIndex)
Return the value of the list field at a specified field index.List<?>
getList(Schema.Field field)
Return the value of a specified list field.List<?>
getList(String fieldPathName)
Return the value of a named list field.long
getLong(int fieldIndex)
Return the value of the long field at a specified field index.long
getLong(Schema.Field field)
Return the value of a specified long field.long
getLong(String fieldPathName)
Return the value of a named long field.Schema
getSchema()
Return the Schema for this TupleString
getString(int fieldIndex)
Return the value of the named string field.String
getString(Schema.Field field)
Return the value of a specified string field.String
getString(String fieldPathName)
Return the value of the named string field.Timestamp
getTimestamp(int fieldIndex)
Return the value of the timestamp field at a specified field index.Timestamp
getTimestamp(Schema.Field field)
Return the value of a specified timestamp field.Timestamp
getTimestamp(String fieldPathName)
Return the value of a named timestamp field.Tuple
getTuple(int fieldIndex)
Return a reference (not a copy) to the specified nested tuple field.Tuple
getTuple(Schema.Field field)
Return a reference (not a copy) to the specified nested tuple field.Tuple
getTuple(String fieldPathName)
Return a reference (not a copy) to the specified nested tuple field.static Tuple.TupleFormatter
getTupleFormatter()
Returns a shared instance of the default tuple field formatter that converts each type to String using Java default String conversions.int
hashCode()
Compute a hashCode for the object.boolean
isNull(int fieldIndex)
Determines whether a field in the tuple is null.boolean
isNull(Schema.Field field)
Determines whether the given field's value in this Tuple is null.boolean
isNull(String fieldPathName)
Determines whether a field in the tuple is null.abstract boolean
isReadOnly()
Returns true if this is a read only tuple (read only tuples throw an UnsupportedOperationException when setter methods are called)void
serialize(ByteOrderedDataOutput output)
Serialize this tuple into a ByteOrderedDataOutputabstract void
serialize(ByteOrderedDataOutput output, int tupleId)
Serialize this tuple into a ByteOrderedDataOutput while specifing the tupleId.void
setBlobBuffer(int fieldIndex, ByteArrayView value)
Set the blob field at a specified field index to a copy of a specified blob.void
setBlobBuffer(Schema.Field field, ByteArrayView value)
Set a specified blob field to a copy of a specified blob.void
setBlobBuffer(String fieldPathName, ByteArrayView value)
Set a named blob field to a copy of a specified blob.void
setBoolean(int fieldIndex, boolean value)
Set the boolean field at a specified field index to a specified value.void
setBoolean(Schema.Field field, boolean value)
Set a named boolean field to a specified value.void
setBoolean(String fieldPathName, boolean value)
Set a named boolean field to a specified value.void
setCapture(int field, Tuple value)
Set a specified capture field to a copy of a specified tuple.void
setCapture(Schema.Field field, Tuple value)
Set a specified capture field to a copy of a specified tuple.void
setCapture(String field, Tuple value)
Set a specified capture field to a copy of a specified tuple.void
setDouble(int fieldIndex, double value)
Set the double field at a specified field index to a specified value.void
setDouble(Schema.Field field, double value)
Set a named double field to a specified value.void
setDouble(String fieldPathName, double value)
Set a named double field to a specified value.void
setField(int fieldIndex, Object value)
Set the field at a specified field index to a specified boxed value.void
setField(Schema.Field field, Object value)
Set a specified field to a specified boxed value.void
setField(Schema.Field field, Object value, CSV.FormatInfo format)
Set the field at a specified field name to a specified boxed value.void
setField(String fieldPathName, Object value)
Set the named field to a specified value.void
setField(String fieldPathName, Object value, CSV.FormatInfo format)
Set the field at a specified field name to a specified boxed value.void
setFields(Map<String,Object> fields)
Takes a map of field names and values as Objects and sets the corresponding tuple field with the supplied value.void
setFunction(int field, Function value)
Set a specified function field to the givenFunction
void
setFunction(Schema.Field field, Function value)
Set a specified function field to the givenFunction
void
setFunction(String field, Function value)
Set a specified function field to the givenFunction
void
setInt(int fieldIndex, int value)
Set the int field at a specified field index to a specified value.void
setInt(Schema.Field field, int value)
Set a specified int field to a specified value.void
setInt(String fieldPathName, int value)
Set the named int field to a specified value.void
setList(int fieldIndex, List<?> value)
Set the list field at a specified field index to a copy of the specified value.void
setList(Schema.Field field, List<?> value)
Set a specified list field to a copy of a specified value.void
setList(String fieldPathName, List<?> value)
Set a named list field to a copy of a specified value.void
setLong(int fieldIndex, long value)
Set the long field at a specified field index to a specified value.void
setLong(Schema.Field field, long value)
Set a specified long field to a specified value.void
setLong(String fieldPathName, long value)
Set a named long field to a specified value.void
setNull(int fieldIndex)
Set the field at a specified field index to null.void
setNull(Schema.Field field)
Set the specified field to nullvoid
setNull(String fieldPathName)
Set a named field to null.void
setString(int fieldIndex, CharSequence value)
Set the string field at a specified field index to a specified value.void
setString(Schema.Field field, CharSequence value)
Set a specified string field to a specified value.void
setString(String fieldPathName, CharSequence value)
Set a named field to a specified value.void
setTimestamp(int fieldIndex, Timestamp value)
Set the timestamp field at a specified field index to a specified value.void
setTimestamp(Schema.Field field, Timestamp value)
Set a named timestamp field to a specified value.void
setTimestamp(String fieldPathName, Timestamp value)
Set a named timestamp field to a specified value.void
setTuple(int fieldIndex, Tuple value)
Set a specified nested tuple field to that of the specified tuple.void
setTuple(Schema.Field field, Tuple value)
Set a specified nested tuple field to that of the specified tuple NOTE: A copy of the the tuple may be made to convert the given tuple to the appropriate internal representation.void
setTuple(String fieldPathName, Tuple value)
Set a named nested tuple field to a specified tuple.String
toDelimitedString(char delimiter)
Return the tuple as a string delimited by the given character.Map<String,Object>
toMapView()
Returns a view on this Tuple that implements the Map<String, Object> interface.String
toString(boolean verbose)
Return a string representation of this Tuple.String
toString(char delimiter, char quoteChar, boolean verbose)
Return a string representation of this Tuple.String
toString(char delimiter, char quoteChar, boolean verbose, boolean showTupleId)
Return a string representation of this Tuple.String
toString(char delimiter, char quoteChar, boolean verbose, boolean showTupleId, String nullString)
Return a string representation of this Tuple.String
toString(char delimiter, char quoteChar, boolean verbose, String nullString)
Return a string representation of this Tuple.
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Field Detail
-
EMPTY_TUPLE
public static final Tuple EMPTY_TUPLE
An empty tuple
-
NO_FLAGS
protected static final int NO_FLAGS
no flags- See Also:
- Constant Field Values
-
THROW_ON_NULL
protected static final int THROW_ON_NULL
during a get throw an exception on null- See Also:
- Constant Field Values
-
CREATE_IF_NULL
protected static final int CREATE_IF_NULL
during a get create tuple if it is null- See Also:
- Constant Field Values
-
NULL_STRING
public static final String NULL_STRING
The default String representation of a null valued field (value "null")- See Also:
- Constant Field Values
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Method Detail
-
isReadOnly
public abstract boolean isReadOnly()
Returns true if this is a read only tuple (read only tuples throw an UnsupportedOperationException when setter methods are called)- Returns:
- true if this is a read only tuple
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clone
public Tuple clone() throws CloneNotSupportedException
Clone this tuple, the new tuple will not share any buffers or data with the original- Specified by:
clone
in interfaceCloneableData
- Overrides:
clone
in classObject
- Returns:
- A copy of this Tuple
- Throws:
CloneNotSupportedException
-
getSchema
public final Schema getSchema()
Return the Schema for this Tuple- Returns:
- the Schema for this Tuple
-
clear
public abstract void clear()
Sets all of this tuple's fields to null values.
-
serialize
public final void serialize(ByteOrderedDataOutput output)
Serialize this tuple into a ByteOrderedDataOutput- Parameters:
output
- the output stream
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serialize
public abstract void serialize(ByteOrderedDataOutput output, int tupleId)
Serialize this tuple into a ByteOrderedDataOutput while specifing the tupleId. In general users will want to useserialize(ByteOrderedDataOutput)
- Parameters:
output
- the output streamtupleId
- the tupleId to attach to this tuple- See Also:
serialize(ByteOrderedDataOutput)
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getBoolean
public final boolean getBoolean(String fieldPathName) throws TupleException, NullValueException
Return the value of a named boolean field.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.- Returns:
- a boolean for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null or a null sub-field was encountered while traversing to the field provided
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getBoolean
public final boolean getBoolean(int fieldIndex) throws TupleException, NullValueException
Return the value of the boolean field at a specified field index.- Parameters:
fieldIndex
- the index of the field to get (starting at 0)- Returns:
- a boolean for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null
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getBoolean
public boolean getBoolean(Schema.Field field) throws TupleException, NullValueException
Return the value of a specified boolean field.- Parameters:
field
- the field to get- Returns:
- a boolean for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null or a null sub-field was encountered while traversing to the Field provided
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getDouble
public final double getDouble(String fieldPathName) throws TupleException, NullValueException
Return the value of a named double field.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.- Returns:
- a double for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null or a null sub-field was encountered while traversing to the field provided
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getDouble
public final double getDouble(int fieldIndex) throws TupleException, NullValueException
Return the value of the double field at a specified field index.- Parameters:
fieldIndex
- the index of the field to get (starting at 0)- Returns:
- a double for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null
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getDouble
public double getDouble(Schema.Field field) throws TupleException, NullValueException
Return the value of a specified double field.- Parameters:
field
- the double field to get- Returns:
- a double for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null or a null sub-field was encountered while traversing to the Field provided
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getInt
public final int getInt(String fieldPathName) throws TupleException, NullValueException
Return the value of a named int field.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.- Returns:
- an int for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null or a null sub-field was encountered while traversing to the field provided
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getInt
public final int getInt(int fieldIndex) throws TupleException, NullValueException
Return the value of the int field at a specified field index.- Parameters:
fieldIndex
- the index of the field to get (starting at 0)- Returns:
- an int for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null
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getInt
public int getInt(Schema.Field field) throws TupleException, NullValueException
Return the value of a specified int field.- Parameters:
field
- the int field to get- Returns:
- an int for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null or a null sub-field was encountered while traversing to the Field provided
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getLong
public final long getLong(String fieldPathName) throws TupleException, NullValueException
Return the value of a named long field.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.- Returns:
- a long for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null or a null sub-field was encountered while traversing to the field provided
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getLong
public final long getLong(int fieldIndex) throws TupleException, NullValueException
Return the value of the long field at a specified field index.- Parameters:
fieldIndex
- the index of the field to get (starting at 0)- Returns:
- a long for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null
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getLong
public long getLong(Schema.Field field) throws TupleException, NullValueException
Return the value of a specified long field.- Parameters:
field
- the long field to get- Returns:
- a long for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null or a null sub-field was encountered while traversing to the Field provided
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getList
public final List<?> getList(String fieldPathName) throws TupleException, NullValueException
Return the value of a named list field. The returned list is not a copy and should not be modified. (The effects of such modifications are undefined.)- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.- Returns:
- a list for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null or a null sub-field was encountered while traversing to the field provided- Since:
- 6.3
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getList
public final List<?> getList(int fieldIndex) throws TupleException, NullValueException
Return the value of the list field at a specified field index. The returned list is not a copy and should not be modified. (The effects of such modifications are undefined.)- Parameters:
fieldIndex
- the index of the field to get (starting at 0)- Returns:
- a List for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null- Since:
- 6.3
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getList
public List<?> getList(Schema.Field field) throws TupleException, NullValueException
Return the value of a specified list field. The returned list is not a copy and should not be modified. (The effects of such modifications are undefined.)- Parameters:
field
- the list field to get- Returns:
- a list for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null or a null sub-field was encountered while traversing to the Field provided- Since:
- 6.3
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getString
public final String getString(String fieldPathName) throws TupleException, NullValueException
Return the value of the named string field. Note that this method is not to be used to retrieve a String value for fields of any type: for that usegetField(String)
.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.- Returns:
- a String for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null or a null sub-field was encountered while traversing to the field provided
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getString
public final String getString(int fieldIndex) throws TupleException, NullValueException
Return the value of the named string field. Note that this method is not to be used to retrieve a String value for fields of any type: for that usegetField(String)
.- Parameters:
fieldIndex
- the index of the field to get (starting at 0)- Returns:
- a String for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null
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getString
public String getString(Schema.Field field) throws TupleException, NullValueException
Return the value of a specified string field. getString() will only work on String datatypes Use getField() to work on all datatypes- Parameters:
field
- the field- Returns:
- a String for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null or a null sub-field was encountered while traversing to the Field provided
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getTimestamp
public final Timestamp getTimestamp(String fieldPathName) throws TupleException, NullValueException
Return the value of a named timestamp field.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.- Returns:
- a Timestamp for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null or a null sub-field was encountered while traversing to the field provided
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getTimestamp
public final Timestamp getTimestamp(int fieldIndex) throws TupleException, NullValueException
Return the value of the timestamp field at a specified field index.- Parameters:
fieldIndex
- the index of the field to get (starting at 0)- Returns:
- a Timestamp for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null
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getTimestamp
public Timestamp getTimestamp(Schema.Field field) throws TupleException, NullValueException
Return the value of a specified timestamp field.- Parameters:
field
- the Timestamp field to get- Returns:
- a Timestamp for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null or a null sub-field was encountered while traversing to the Field provided
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getBlobBuffer
public final ByteArrayView getBlobBuffer(String fieldPathName) throws TupleException, NullValueException
Return a ByteArrayView for a given blob field. A copy of the blob is not made.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.- Returns:
- a ByteArrayView for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null or a null sub-field was encountered while traversing to the field provided
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getBlobBuffer
public final ByteArrayView getBlobBuffer(int fieldIndex) throws TupleException, NullValueException
Return a ByteArrayView for a given blob field. A copy of the blob is not made.- Parameters:
fieldIndex
- the index of the field to get (starting at 0)- Returns:
- a ByteArrayView for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null
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getBlobBuffer
public ByteArrayView getBlobBuffer(Schema.Field field) throws TupleException, NullValueException
Return a ByteArrayView for a given blob field. A copy of the blob is not made.- Parameters:
field
- the field to get- Returns:
- a ByteArrayView for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null or a null sub-field was encountered while traversing to the Field provided
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getTuple
public Tuple getTuple(Schema.Field field) throws TupleException, NullValueException
Return a reference (not a copy) to the specified nested tuple field. Also consider using {link #getAllocatedTuple(Schema.Field) as an alternative to reduce copying of data without the need for asetTuple(Schema.Field, Tuple)
.- Parameters:
field
- the field to get- Returns:
- a Tuple for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null or a null sub-field was encountered while traversing to the Field provided- Since:
- 6.0
- See Also:
getAllocatedTuple(Schema.Field)
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getAllocatedTuple
public Tuple getAllocatedTuple(Schema.Field field) throws TupleException
Return a reference (not a copy) to the specified nested tuple field. Allocates nested tuples as needed to always return a non-null tuple. The returned Tuple may be modified directly without the need to callsetTuple(Schema.Field, Tuple)
to update the parent tuple.- Parameters:
field
- the field to get- Returns:
- a Tuple for the given field
- Throws:
TupleException
- if there was a conversion error- Since:
- 6.6.12
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getTuple
public final Tuple getTuple(String fieldPathName) throws TupleException, NullValueException
Return a reference (not a copy) to the specified nested tuple field. Also consider using {link #getAllocatedTuple(String) as an alternative to reduce copying of data without the need for asetTuple(String, Tuple)
.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.- Returns:
- a Tuple for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null or a null sub-field was encountered while traversing to the field provided- Since:
- 6.0
- See Also:
getAllocatedTuple(String)
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getAllocatedTuple
public final Tuple getAllocatedTuple(String fieldPathName) throws TupleException
Return a reference (not a copy) to the specified nested tuple field. Allocates nested tuples as needed to always return a non-null tuple. The returned Tuple may be modified directly without the need to callsetTuple(Schema.Field, Tuple)
to update the parent tuple.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.- Returns:
- a Tuple for the given field
- Throws:
TupleException
- if there was a conversion error- Since:
- 6.6.12
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getTuple
public final Tuple getTuple(int fieldIndex) throws TupleException, NullValueException
Return a reference (not a copy) to the specified nested tuple field. Also consider using {link #getAllocatedTuple(int) as an alternative to reduce copying of data without the need for asetTuple(int, Tuple)
.- Parameters:
fieldIndex
- the index of a field to get (starting at 0)- Returns:
- a Tuple for the given field
- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null or a null sub-field was encountered while traversing to the field provided- Since:
- 6.0
- See Also:
getAllocatedTuple(int)
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getAllocatedTuple
public final Tuple getAllocatedTuple(int fieldIndex) throws TupleException
Return a reference (not a copy) to the specified nested tuple field. Allocates nested tuples as needed to always return a non-null tuple. The returned Tuple may be modified directly without the need to callsetTuple(Schema.Field, Tuple)
to update the parent tuple.- Parameters:
fieldIndex
- the index of a field to get (starting at 0)- Returns:
- a Tuple for the given field
- Throws:
TupleException
- if there was a conversion error- Since:
- 6.6.12
-
getCapture
public final Tuple getCapture(Schema.Field field) throws TupleException
Return the value of the named capture field.- Parameters:
field
- the field to get- Returns:
- an Tuple containing the fields captured (possibly none)
- Throws:
TupleException
- on error with the capture field- Since:
- 7.2
-
getCapture
public final Tuple getCapture(String fieldPathName) throws NullValueException, TupleException
Return the value of the named capture field.- Parameters:
fieldPathName
- the field to get- Returns:
- an Tuple containing the fields captured (possibly none)
- Throws:
TupleException
- on error with the capture fieldNullValueException
- if the value of the field is null- Since:
- 7.2
-
getCapture
public final Tuple getCapture(int fieldIndex) throws NullValueException, TupleException
Return the value of the named capture field.- Parameters:
fieldIndex
- the index of the field to get- Returns:
- an Tuple containing the fields captured (possibly none)
- Throws:
TupleException
- on error with the capture fieldNullValueException
- if the value of the field is null- Since:
- 7.2
-
getCaptureImpl
protected abstract Tuple getCaptureImpl(Schema.Field field) throws TupleException
Get capture field- Parameters:
field
- Field- Returns:
- Capture field tuple
- Throws:
TupleException
- Error access capture field
-
getField
public final Object getField(Schema.Field field)
Return the value of a specified field.- Parameters:
field
- the field to get- Returns:
- an Object of the proper type for this field. Note that null will be returned if the field's value is null or a null sub-field was encountered while traversing to the field provided
- Throws:
RuntimeException
- if the field doesn't exist
-
getField
public final Object getField(int fieldIndex) throws TupleException
Return the value of the field at a specified field index.- Parameters:
fieldIndex
- the index of the field to get (starting at 0)- Returns:
- an Object of the proper type for this field. Note that null will be returned if the field's value is null.
- Throws:
TupleException
- if the field doesn't exist
-
getFieldAsString
public final String getFieldAsString(Schema.Field field, Tuple.TupleFormatter formatter)
Get the current field as a human readable string, using theTuple.TupleFormatter
provided. StreamBase provides a default formatter viagetTupleFormatter()
as a convenience.- Parameters:
field
- the field to getformatter
- used to format the field value- Returns:
- a string representation of the field
- Throws:
RuntimeException
- if there was a conversion error or if the field doesn't exist (also applies to fields contained in a field of type Tuple whose current value is null)
-
getField
public final Object getField(String fieldPathName) throws TupleException
Return the value of a named field. See type-specific getStreamBaseType() methods for information related to the fields of each specific type.Escaping field names and path segments:
Path name segments may begin with
#"
(hash, double-quote) and end with"
(double-quote) in order to escape normally disallowed characters. When using this syntax, all inner quotes and backslashes must be escaped with backslashes, similar to syntax used for SSQL string literals.- Parameters:
fieldPathName
- the path name of the field to get- Returns:
- an Object of the proper type for this field. Note that null will be returned if the field's value is null or a null sub-field was encountered while traversing to the field provided
- Throws:
TupleException
- if the field doesn't exist
-
isNull
public final boolean isNull(String fieldPathName) throws TupleException
Determines whether a field in the tuple is null.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.- Returns:
- true if the field's value is null, false otherwise
- Throws:
TupleException
- when a field with the given path name does not exist in this Tuple
-
isNull
public final boolean isNull(int fieldIndex) throws TupleException
Determines whether a field in the tuple is null.- Parameters:
fieldIndex
- the index (0-based) of the field to check for a null value- Returns:
- true if the field's value is null, false otherwise
- Throws:
TupleException
- when a field with the given path name does not exist in this Tuple
-
isNull
public boolean isNull(Schema.Field field)
Determines whether the given field's value in this Tuple is null.The Field objects used to set and get Tuple field values must be obtained via the Tuple's Schema object. A Field object that has been created by the user or retrieved from a different Schema will not work.
- Parameters:
field
- the field to check for a null value- Returns:
- true if the field's value is null (or a sub-field encountered while traversing to the given field was null), false otherwise
-
setBoolean
public final void setBoolean(String fieldPathName, boolean value) throws TupleException, NullValueException
Set a named boolean field to a specified value.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.value
- the value to set the field to- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value of the field is null
-
setBoolean
public final void setBoolean(int fieldIndex, boolean value) throws TupleException, NullValueException
Set the boolean field at a specified field index to a specified value.- Parameters:
fieldIndex
- The index of the field to set (starting at 0)value
- the value to set the field to- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value of the field is null
-
setBoolean
public void setBoolean(Schema.Field field, boolean value) throws TupleException
Set a named boolean field to a specified value.- Parameters:
field
- the field to setvalue
- the value to set the field to- Throws:
TupleException
- if there was a value conversion error, the field doesn't exist in this Tuple or while traversing to a sub-field a null value was encountered
-
setDouble
public final void setDouble(String fieldPathName, double value) throws TupleException, NullValueException
Set a named double field to a specified value.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.value
- the value to set the field to- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value of the field is null
-
setDouble
public final void setDouble(int fieldIndex, double value) throws TupleException, NullValueException
Set the double field at a specified field index to a specified value.- Parameters:
fieldIndex
- The index of the field to set (starting at 0)value
- the value to set the field to- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value of the field is null
-
setDouble
public void setDouble(Schema.Field field, double value) throws TupleException
Set a named double field to a specified value.- Parameters:
field
- the field to setvalue
- the value to set the field to- Throws:
TupleException
- if there was a value conversion error, the field doesn't exist in this Tuple or while traversing to a sub-field a null value was encountered
-
setInt
public final void setInt(String fieldPathName, int value) throws TupleException, NullValueException
Set the named int field to a specified value.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.value
- the value to set the field to- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value of the field is null
-
setInt
public final void setInt(int fieldIndex, int value) throws TupleException, NullValueException
Set the int field at a specified field index to a specified value.- Parameters:
fieldIndex
- The index of the field to set (starting at 0)value
- the value to set the field to- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value of the field is null
-
setInt
public void setInt(Schema.Field field, int value) throws TupleException
Set a specified int field to a specified value.- Parameters:
field
- the field to setvalue
- the value to set the field to- Throws:
TupleException
- if there was a value conversion error, the field doesn't exist in this Tuple or while traversing to a sub-field a null value was encountered
-
setBlobBuffer
public final void setBlobBuffer(String fieldPathName, ByteArrayView value) throws TupleException
Set a named blob field to a copy of a specified blob.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.value
- the value to set the field to. This can be null to set the field to null.- Throws:
TupleException
- if there was a conversion error or if the field doesn't exist
-
setBlobBuffer
public final void setBlobBuffer(int fieldIndex, ByteArrayView value) throws TupleException
Set the blob field at a specified field index to a copy of a specified blob.- Parameters:
fieldIndex
- The index of the field to set (starting at 0)value
- the value to set the field to. This can be null to set the field to null.- Throws:
TupleException
- if there was a conversion error or if the field doesn't exist
-
setBlobBuffer
public void setBlobBuffer(Schema.Field field, ByteArrayView value) throws TupleException
Set a specified blob field to a copy of a specified blob.- Parameters:
field
- the field to setvalue
- the value to set the field to. This can be null to set the field to null.- Throws:
TupleException
- if there was a value conversion error, the field doesn't exist in this Tuple or while traversing to a sub-field a null value was encountered
-
setLong
public final void setLong(String fieldPathName, long value) throws TupleException, NullValueException
Set a named long field to a specified value.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.value
- the value to set the field to- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value of the field is null
-
setLong
public final void setLong(int fieldIndex, long value) throws TupleException, NullValueException
Set the long field at a specified field index to a specified value.- Parameters:
fieldIndex
- The index of the field to set (starting at 0)value
- the value to set the field to- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value of the field is null
-
setLong
public void setLong(Schema.Field field, long value) throws TupleException
Set a specified long field to a specified value.- Parameters:
field
- the field to setvalue
- the value to set the field to- Throws:
TupleException
- if there was a value conversion error, the field doesn't exist in this Tuple or while traversing to a sub-field a null value was encountered
-
setList
public final void setList(String fieldPathName, List<?> value) throws TupleException, NullValueException
Set a named list field to a copy of a specified value.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.value
- the value to set the field to- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value of the field is null- Since:
- 6.3
-
setList
public final void setList(int fieldIndex, List<?> value) throws TupleException, NullValueException
Set the list field at a specified field index to a copy of the specified value.- Parameters:
fieldIndex
- The index of the field to set (starting at 0)value
- the value to set the field to- Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value of the field is null- Since:
- 6.3
-
setList
public void setList(Schema.Field field, List<?> value) throws TupleException
Set a specified list field to a copy of a specified value.- Parameters:
field
- the field to setvalue
- the value to set the field to- Throws:
TupleException
- if there was a value conversion error, the field doesn't exist in this Tuple or while traversing to a sub-field a null value was encountered- Since:
- 6.3
-
setString
public final void setString(String fieldPathName, CharSequence value) throws TupleException
Set a named field to a specified value. Works only on String types, use setField() to coerce type.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.value
- the value to set the field to. This can be null to set the field to null.- Throws:
TupleException
- if there was a conversion error or if the field doesn't exist- Since:
- 6.5 CharSequence version of method added
-
setString
public final void setString(int fieldIndex, CharSequence value) throws TupleException
Set the string field at a specified field index to a specified value.- Parameters:
fieldIndex
- The index of the field to set (starting at 0)value
- the value to set the field to. This can be null to set the field to null.- Throws:
TupleException
- if there was a conversion error or if the field doesn't exist- Since:
- 6.5 CharSequence version of method added
-
setString
public final void setString(Schema.Field field, CharSequence value) throws TupleException
Set a specified string field to a specified value.- Parameters:
field
- The field to setvalue
- the value to set the field to. This can be null to set the field to null.- Throws:
TupleException
- if there was a conversion error or if the field doesn't exist- Since:
- 6.5 CharSequence version of method added
-
setTimestamp
public final void setTimestamp(String fieldPathName, Timestamp value) throws TupleException
Set a named timestamp field to a specified value.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.value
- the value to set the field to- Throws:
TupleException
- if there was a conversion error or if the field doesn't exist
-
setTimestamp
public final void setTimestamp(int fieldIndex, Timestamp value) throws TupleException
Set the timestamp field at a specified field index to a specified value.- Parameters:
fieldIndex
- The index of the field to set (starting at 0)value
- the value to set the field to- Throws:
TupleException
- if there was a conversion error or if the field doesn't exist
-
setTimestamp
public void setTimestamp(Schema.Field field, Timestamp value) throws TupleException
Set a named timestamp field to a specified value.- Parameters:
field
- The field to setvalue
- the value to set the field to- Throws:
TupleException
- if there was a value conversion error, the field doesn't exist in this Tuple or while traversing to a sub-field a null value was encountered
-
setTuple
public final void setTuple(String fieldPathName, Tuple value) throws TupleException
Set a named nested tuple field to a specified tuple.NOTE: A copy of the tuple may be made to convert the given tuple to the appropriate internal representation. Use
getAllocatedTuple(String)
if you require a reference (not a copy) of the nested tuple to achieve a zero copy setTuple. For example:Tuple nestedReference = tuple.getAllocatedTuple("fieldName"); nestedReference.set...; nestedReference.set...; // tuple.setTuple("fieldName", nestedReference); is not needed
- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.value
- the value to set the field to- Throws:
TupleException
- if there was a conversion error or if the field doesn't exist
-
setTuple
public final void setTuple(int fieldIndex, Tuple value) throws TupleException
Set a specified nested tuple field to that of the specified tuple.NOTE: A copy of the tuple may be made to convert the given tuple to the appropriate internal representation. Use
getAllocatedTuple(Schema.Field)
if you require a reference (not a copy) of the nested tuple to achieve a zero copy setTuple. For example:Tuple nestedReference = tuple.getAllocatedTuple(field); nestedReference.set...; nestedReference.set...; // tuple.setTuple("fieldName", nestedReference); is not needed
- Parameters:
fieldIndex
- the index of the field to set (starting at 0)value
- the value to set the field to- Throws:
TupleException
- if there was a conversion error or if the field doesn't exist
-
setTuple
public void setTuple(Schema.Field field, Tuple value) throws TupleException
Set a specified nested tuple field to that of the specified tuple NOTE: A copy of the the tuple may be made to convert the given tuple to the appropriate internal representation. UsegetAllocatedTuple(Schema.Field)
if you require a reference (not a copy) of the nested tuple For a zero copy setTuple do the following:Tuple nestedReference = tuple.getAllocatedTuple(field); nestedReference.set...; nestedReference.set...; // tuple.setTuple(field, nestedReference); is not needed and // in fact would cause an extra copy
- Parameters:
field
- the field to setvalue
- the tuple to set the field to- Throws:
TupleException
- if there was a value conversion error, the field doesn't exist in this Tuple or while traversing to a sub-field a null value was encountered
-
getFields
@Deprecated public Map<String,Object> getFields()
Deprecated.usetoMapView()
Return a Map containing a list of all the field values of the tuple as Objects. The key is the field name as a String.- Returns:
- A Map containing all values from the tuple. Note that if the field is null in the tuple, it will not be included in the returned Map.
- Since:
- 6.0
- See Also:
toMapView()
-
setFields
public void setFields(Map<String,Object> fields) throws TupleException
Takes a map of field names and values as Objects and sets the corresponding tuple field with the supplied value. All fields not present in the map are set to null in the tuple.- Parameters:
fields
- map of field names and values- Throws:
TupleException
- thrown if there was a conversion error- Since:
- 7.4 no longer throws an error if the input map length does not match this Tuple's fieldcount
-
setCapture
public final void setCapture(Schema.Field field, Tuple value) throws TupleException
Set a specified capture field to a copy of a specified tuple.- Parameters:
field
- the field to setvalue
- the value to set the field to. Must be of the correct type for this capture field- Throws:
TupleException
- if there was a value conversion error, the field doesn't exist in this Tuple or while traversing to a sub-field a null value was encountered- Since:
- 7.2
-
setCapture
public final void setCapture(String field, Tuple value) throws TupleException
Set a specified capture field to a copy of a specified tuple.- Parameters:
field
- the field to setvalue
- the value to set the field to. Must be of the correct type for this capture field- Throws:
TupleException
- if there was a value conversion error, the field doesn't exist in this Tuple or while traversing to a sub-field a null value was encountered- Since:
- 7.2
-
setCapture
public final void setCapture(int field, Tuple value) throws TupleException
Set a specified capture field to a copy of a specified tuple.- Parameters:
field
- the field to setvalue
- the value to set the field to. Must be of the correct type for this capture field- Throws:
TupleException
- if there was a value conversion error, the field doesn't exist in this Tuple or while traversing to a sub-field a null value was encountered- Since:
- 7.2
-
getFunction
public final Function getFunction(int fieldIndex) throws TupleException
Return the value of the function field at a specified field index.- Parameters:
fieldIndex
- the index of the field to get (starting at 0)- Returns:
- a
Function
for the given field - Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null- Since:
- 7.4
-
getFunction
public final Function getFunction(String fieldName) throws TupleException
Return the value of the named function field.- Parameters:
fieldName
- the name of the field to get- Returns:
- a
Function
for the given field - Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null- Since:
- 7.4
-
getFunction
public final Function getFunction(Schema.Field field) throws TupleException
Return the value of the given function field.- Parameters:
field
- the field to get- Returns:
- a
Function
for the given field - Throws:
TupleException
- if there was a conversion error or if the field doesn't existNullValueException
- if the value is null- Since:
- 7.4
-
setFunction
public final void setFunction(int field, Function value) throws TupleException
Set a specified function field to the givenFunction
- Parameters:
field
- the index of the field to setvalue
- the value to set the field to. Must be of the correct type for this function field.- Throws:
TupleException
- if there was a value conversion error, or the field doesn't exist in this Tuple.- Since:
- 7.4
-
setFunction
public final void setFunction(String field, Function value) throws TupleException
Set a specified function field to the givenFunction
- Parameters:
field
- the name or path of the field to setvalue
- the value to set the field to. Must be of the correct type for this function field- Throws:
TupleException
- if there was a value conversion error, the field doesn't exist in this Tuple or while traversing to a sub-field a null value was encountered- Since:
- 7.4
-
setFunction
public final void setFunction(Schema.Field field, Function value) throws TupleException
Set a specified function field to the givenFunction
- Parameters:
field
- the field to setvalue
- the value to set the field to. Must be of the correct type for this function field. This can be null to set this field to null.- Throws:
TupleException
- if there was a value conversion error, the field doesn't exist in this Tuple or while traversing to a sub-field a null value was encountered- Since:
- 7.4
-
setField
public final void setField(String fieldPathName, Object value) throws TupleException
Set the named field to a specified value.See
setField(Schema.Field, Object)
for a discussion of possible conversions of the value.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.value
- the value to set the field to. This can be null to set the field to null.- Throws:
TupleException
- if there was a conversion error or if the field doesn't exist
-
setField
public final void setField(String fieldPathName, Object value, CSV.FormatInfo format) throws TupleException
Set the field at a specified field name to a specified boxed value.See
setField(Schema.Field, Object)
for a discussion of possible conversions of the value.- Parameters:
fieldPathName
- the name of the field to setvalue
- the value to set the field to. This can be null to set the field to null.format
- the FormatInfo to use when parsing items, such as timestamp strings, in the value.- Throws:
TupleException
- if there was a conversion error or if the field doesn't exist
-
setField
public final void setField(int fieldIndex, Object value) throws TupleException
Set the field at a specified field index to a specified boxed value.See
setField(Schema.Field, Object)
for a discussion of possible conversions of the value.- Parameters:
fieldIndex
- the index of the field to set (starting at 0)value
- the value to set the field to. This can be null to set the field to null.- Throws:
TupleException
- if there was a conversion error or if the field doesn't exist
-
setField
public final void setField(Schema.Field field, Object value) throws TupleException
Set a specified field to a specified boxed value.If the value is not a natural type for the type of the specified field, this method attempts to convert the value based on the field's type. (A "natural type" for a field type is the Java type that is acceptable to a type-specific setXxx() method for that field. In the list below, the natural types for each StreamBase type are listed in parentheses after each type.)
Conversions:
- int (
Integer
), double (Double
), long (Long
) - Numeric value types are converted (possibly with loss of precision)
if necessary. For all other values types, the value is converted
to a
String
(withObject.toString()
) and an attempt is made to parse the string into a numeric value of the required type. - boolean (
Boolean
): - The value is converted to a String, turned to lowercase, and then checked for the string values "true", "yes", "1", and "t" (all of which result in the field being set to true) and "false", "no", "0", and "f" (all of which result in the field being set to false).
- string (
String
): - Values of type
ByteArrayView
andbyte[]
are assigned by converting the bytes to a string using an internal StreamBase conversion routine. For all other value types, the value is converted to aString
withObject.toString()
. - timestamp (
Timestamp
): - Values of type
Date
are converted withTimestamp(java.util.Date)
. Numeric value types are treated as a number of seconds (time interval). - blob (byte[],
ByteArrayView
): - If the value is a
String
, it's converted to an array of bytes, representing the ASCII encoding of the string's characters unless overridden by the setting of the streambase.tuple-charset Java property. - tuple (
Tuple
): - If the value is a
String
, it's parsed as a CSV-formatted list of field values (e.g., "1,foo"). - list (
List
): - If the value is a
String
, it's parsed as a square-bracketed, CSV-formatted list of element values (e.g., "[1,3,5]").
If a conversion is required but none of the above conversions apply, a
TupleException
exception is thrownNote on CSV (comma-separated values) format: In the case of list or tuple fields which themselves contain list or tuple values, care must be taken to properly use double quotes where necessary. (The presence of commas in those nested values in the CSV string requires them to be surrounded by quotes. Further nesting may require increased quoting.) See RFC 4180 for details on CSV format.
- Parameters:
field
- field to setvalue
- the value to set the field to. This can be null to set the field to null.- Throws:
TupleException
- if there was a value conversion error, the field doesn't exist in this Tuple or while traversing to a sub-field a null value was encountered- Since:
- 6.0
- int (
-
setField
public final void setField(Schema.Field field, Object value, CSV.FormatInfo format) throws TupleException
Set the field at a specified field name to a specified boxed value.See
setField(Schema.Field, Object)
for a discussion of possible conversions of the value.- Parameters:
field
- field to setvalue
- the value to set the field to. This can be null to set the field to null.format
- the FormatInfo to use when parsing items, such as timestamp strings, in the value.- Throws:
TupleException
- if there was a conversion error or if the field doesn't exist
-
setNull
public final void setNull(String fieldPathName) throws TupleException
Set a named field to null.- Parameters:
fieldPathName
- the path name of the field to get. SeegetField(String)
for notes on path segment syntax.- Throws:
TupleException
- thrown when the Field cannot be found
-
setNull
public final void setNull(int fieldIndex)
Set the field at a specified field index to null.- Parameters:
fieldIndex
- the index of the field to set to null (starting at 0)
-
setNull
public void setNull(Schema.Field field)
Set the specified field to null- Parameters:
field
- the field to set to null
-
toString
public String toString(boolean verbose)
Return a string representation of this Tuple. The delimiter is a comma and the quote character is a double quote.- Parameters:
verbose
- should field names and tuple id (if available) be included?- Returns:
- a string representation of this Tuple
-
toString
public String toString(char delimiter, char quoteChar, boolean verbose)
Return a string representation of this Tuple.- Parameters:
delimiter
- the character to insert between each fieldquoteChar
- the character used to surround string fieldsverbose
- should field names and tuple id (if available) be included?- Returns:
- a string representation of this Tuple
-
toString
public String toString(char delimiter, char quoteChar, boolean verbose, boolean showTupleId)
Return a string representation of this Tuple.- Parameters:
delimiter
- the character to insert between each fieldquoteChar
- the character used to surround string fieldsverbose
- should field names be included?showTupleId
- should the tuple id, if available, be shown?- Returns:
- a string representation of this Tuple
-
toString
public String toString(char delimiter, char quoteChar, boolean verbose, String nullString)
Return a string representation of this Tuple.- Parameters:
delimiter
- the character to insert between each fieldquoteChar
- the character used to surround string fieldsverbose
- should field names and tuple id (if available) be included?nullString
- the string to use for null field values- Returns:
- a string representation of this Tuple
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toString
public String toString(char delimiter, char quoteChar, boolean verbose, boolean showTupleId, String nullString)
Return a string representation of this Tuple.- Parameters:
delimiter
- the character to insert between each fieldquoteChar
- the character used to surround string fieldsverbose
- should field names be included?showTupleId
- should the tuple id, if available, be shown?nullString
- the string to use for null field values- Returns:
- a string representation of this Tuple
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equals
public boolean equals(Object obj)
Test whether the given object is equal to this one. Tuples are considered equal if all of their fields are equal, and their schemas match exactly (including order of fields).
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hashCode
public int hashCode()
Compute a hashCode for the object.
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toDelimitedString
public String toDelimitedString(char delimiter)
Return the tuple as a string delimited by the given character.- Parameters:
delimiter
- the delimiter- Returns:
- the tuple as a string delimited by the given character.
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createWritableTuple
public abstract Tuple createWritableTuple()
Return a new tuple that is guaranteed to be writable- Returns:
- a writable tuple
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createReadOnlyTuple
public abstract Tuple createReadOnlyTuple()
Return a new tuple that is guaranteed to be read only- Returns:
- a read only tuple
- Since:
- 7.0
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copyField
public void copyField(Schema.Field sourceField, Tuple destTuple, Schema.Field destField) throws TupleException
Copy the field from this tuple to the destination tuple- Parameters:
sourceField
- the source fielddestTuple
- the destination tupledestField
- the destination field- Throws:
TupleException
- if type mismatch, missing fields- Since:
- 6.4.5
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toMapView
public Map<String,Object> toMapView()
Returns a view on this Tuple that implements the Map<String, Object> interface. Changes to this Tuple will be reflected in the returned Map<String, Object> and vice versa.The keys of this map are the field names of the schema of this tuple.
The values of this map are the current values of this map. These values are the same as returned by
getField(String)
.Map<String, Object>.get(Object key) will return a null for fields that are null and that do not exist in this Tuple. Use Map<String, Object>.containsKey(Object key) to determine if a key is a valid field in this Tuple.
Repeated calls to
toMapView()
will return the same instance of Map<String, Object>.This Map<String, Object> does not support any remove operations. This Map is backed by a Tuple with a fixed schema. Any modify operations that attempt to address keys that are not in the fixed schema are not supported.
- Returns:
- a Map<String, Object> view of this Tuple.
- Since:
- 7.0
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getTupleFormatter
public static Tuple.TupleFormatter getTupleFormatter()
Returns a shared instance of the default tuple field formatter that converts each type to String using Java default String conversions. For string formatting rules used by each type, seeTuple.DefaultTupleFormatter
.- Returns:
- a
Tuple.TupleFormatter
instance suitable for use ingetFieldAsString(Schema.Field, TupleFormatter)
- Since:
- 7.0 method added, 7.1 tuples and lists recursively use the formatter for sub-fields and elements
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checkTypeAndNonNull
protected int checkTypeAndNonNull(Schema.Field resolvedField, DataType dataType) throws TupleException
check the type and make sure it is non null- Parameters:
resolvedField
- resolved fielddataType
- data type- Returns:
- field index or other information (depending upon overrides)
- Throws:
TupleException
- on error
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checkType
protected void checkType(Schema.Field resolvedField, DataType dataType) throws TupleException
Check type- Parameters:
resolvedField
- FielddataType
- Data type- Throws:
TupleException
- Invalid type
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copyTuple
protected void copyTuple(Tuple sourceTuple) throws TupleException
copy the source tuple to this tuple- Parameters:
sourceTuple
- source tuple to be copied- Throws:
TupleException
- on error
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