java.lang.Object
- com.streambase.sb.CompleteDataType

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

CompleteDataType.CaptureType, CompleteDataType.FunctionType, CompleteDataType.ListType, CompleteDataType.TupleType
```
public abstract class CompleteDataType
extends Object
implements Serializable
```
Wraps DataType with ancillary information about the type (where appropriate) that's needed to actually use the DataType. E.g., to be "complete",
- DataType.TUPLE needs a description of the tuple's schema (expressed as a Schema),and
- DataType.LIST needs a description of the type of list's elements (itself expressed as a CompleteDataType).
- DataType.FUNCTION needs a description of the function's arguments (as a Schema) and its return type (as a CompleteDataType)
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.
Since:

6.3

See Also:

Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`CompleteDataType.CaptureType`	Capture type
`static class`	`CompleteDataType.FunctionType`	Function type
`static class`	`CompleteDataType.ListType`	List type
`static class`	`CompleteDataType.TupleType`	Tuple type

Field Summary

Fields
Modifier and Type	Field	Description
`static long`	`NULL_TO_TYPE_SCORE`	Null to type coercion value
`static long`	`SCORE_FAIL`	Coercion score fail
`static long`	`SCORE_PASS`	Coercion score pass
`protected DataType`	`type`	Wrapped data type
`static long`	`TYPE_TO_TYPE_SCORE`	Type to type coercion value
`static long`	`WILDCARD_SCORE`	Wild card coercion value

Constructor Summary

Constructors
Modifier Constructor Description

protected CompleteDataType(DataType type)
Constructor

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`boolean`	`canAssignFrom(CompleteDataType other)`	Check if a value of this type can be assigned a value of the other type.
`protected boolean`	`canAssignFromImpl(CompleteDataType other)`	Method for subclasses to override if they have a broader concept of type.
`protected boolean`	`equalBaseTypes(CompleteDataType other)`	Compare wrapped types
`static CompleteDataType`	`findSuperType(CompleteDataType t1, CompleteDataType t2)`	Find a type that t1 and t2 can both promote to safely
`static CompleteDataType`	`forBlob()`	Return the complete type for a blob.
`static CompleteDataType`	`forBlobList()`
`static CompleteDataType`	`forBool()`	Deprecated. Use `forBoolean()`
`static CompleteDataType`	`forBoolean()`	Return the complete type for a bool.
`static CompleteDataType`	`forBoolList()`
`static CompleteDataType`	`forCapture(String typeName)`	Return a capture complete data type with the specified type parameter name.
`static CompleteDataType`	`forDouble()`	Return the complete type for a double.
`static CompleteDataType`	`forDoubleList()`
`static CompleteDataType.FunctionType`	`forFunction(Schema argumentSchema, CompleteDataType returnType)`	Return a function's `CompleteDataType` with the given argument schema and return type
`static CompleteDataType`	`forInt()`	Return the complete type for an int.
`static CompleteDataType`	`forIntList()`
`static CompleteDataType`	`forList(CompleteDataType elementType)`	Return a list complete data type with the specified element type
`static CompleteDataType`	`forLong()`	Return the complete type for a long.
`static CompleteDataType`	`forLongList()`
`static CompleteDataType`	`forString()`	Return the complete type for a string.
`static CompleteDataType`	`forStringList()`
`static CompleteDataType`	`forTimestamp()`	Return the complete type for a timestamp.
`static CompleteDataType`	`forTimestampList()`
`static CompleteDataType`	`forTuple(Schema schema)`	Return a tuple complete data type with the specified schema.
`Schema`	`getArgumentSchema()`	For function types, return the argument schema.
`String`	`getCaptureName()`	For capture types, return the capture type name.
`DataType`	`getDataType()`	Return the data type of the complete type
`CompleteDataType`	`getElementType()`	For list collection types, return the complete type of the list's elements.
`String`	`getName()`	Get the name of this complete type
`CompleteDataType`	`getReturnType()`	For function types, return the return type of the function.
`Schema`	`getSchema()`	For tuple types, return the tuple's schema.
`long`	`rateCoercion(CompleteDataType type)`	calculate the coercion score to get coerce this → type - by default returns SCORE_PASS or SCORE_FAIL based on equals
`static long`	`rateCoercion(CompleteDataType from, CompleteDataType to)`	Rate coercion
`String`	`toHumanString()`	Return a String describing the type suitable for error messages.
`abstract String`	`toHumanString(SchemaUtil.SchemaProvider schemaProvider)`	Return a String describing the type suitable for error messages.
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - type
```
protected final DataType type
```
    Wrapped data type
  - SCORE_FAIL
```
public static final long SCORE_FAIL
```
    Coercion score fail
    
    See Also:
    
    Constant Field Values
  - SCORE_PASS
```
public static final long SCORE_PASS
```
    Coercion score pass
    
    See Also:
    
    Constant Field Values
  - TYPE_TO_TYPE_SCORE
```
public static final long TYPE_TO_TYPE_SCORE
```
    Type to type coercion value
    
    See Also:
    
    Constant Field Values
  - NULL_TO_TYPE_SCORE
```
public static final long NULL_TO_TYPE_SCORE
```
    Null to type coercion value
    
    See Also:
    
    Constant Field Values
  - WILDCARD_SCORE
```
public static final long WILDCARD_SCORE
```
    Wild card coercion value
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - CompleteDataType
```
protected CompleteDataType(DataType type)
```
    Constructor
    
    Parameters:
    
    type - Data type
- Method Detail
  - getDataType
```
public DataType getDataType()
```
    Return the data type of the complete type
    
    Returns:
    
    the DataType
  - toString
```
public final String toString()
```
    Overrides:
    
    toString in class Object
  - toHumanString
```
public String toHumanString()
```
    Return a String describing the type suitable for error messages.
    Assumes no schemas are named.
    
    Returns:
    
    a suitable string
    
    Since:
    
    6.3
  - canAssignFrom
```
public final boolean canAssignFrom(CompleteDataType other)
```
    Check if a value of this type can be assigned a value of the other type. That is, is this type a supertype of that type.
    
    Parameters:
    
    other - the other type
    
    Returns:
    
    type assignment compatibility
  - canAssignFromImpl
```
protected boolean canAssignFromImpl(CompleteDataType other)
```
    Method for subclasses to override if they have a broader concept of type.
    
    Parameters:
    
    other - the other type
    
    Returns:
    
    type assignment compatibility
  - rateCoercion
```
public long rateCoercion(CompleteDataType type)
```
    calculate the coercion score to get coerce this → type - by default returns SCORE_PASS or SCORE_FAIL based on equals
    
    Parameters:
    
    type - the CType to converse to
    
    Returns:
    
    the score, use COp.java as a reference for score constants
  - toHumanString
```
public abstract String toHumanString(SchemaUtil.SchemaProvider schemaProvider)
```
    Return a String describing the type suitable for error messages.
    
    Parameters:
    
    schemaProvider - A schema provider to identify named schemas
    
    Returns:
    
    param a suitable string
    
    Since:
    
    6.3
  - equalBaseTypes
```
protected boolean equalBaseTypes(CompleteDataType other)
```
    Compare wrapped types
    
    Parameters:
    
    other - Compare with this type
    
    Returns:
    
    true if equal
  - getName
```
public String getName()
```
    Get the name of this complete type
    
    Returns:
    
    the name of this CompleteDataType
  - getSchema
```
public Schema getSchema()
```
    For tuple types, return the tuple's schema. For other types null is returned.
    
    Returns:
    
    the tuple types's schema
  - getArgumentSchema
```
public Schema getArgumentSchema()
```
    For function types, return the argument schema. For other types null is returned.
    
    Returns:
    
    the function type's argument schema
  - getElementType
```
public CompleteDataType getElementType()
```
    For list collection types, return the complete type of the list's elements. For other types null is returned.
    
    Returns:
    
    the list type's element type
  - getCaptureName
```
public String getCaptureName()
```
    For capture types, return the capture type name. For other types, null is returned
    
    Returns:
    
    the capture name
  - getReturnType
```
public CompleteDataType getReturnType()
```
    For function types, return the return type of the function. For other types, return null.
    
    Returns:
    
    the function type's return type
  - rateCoercion
```
public static long rateCoercion(CompleteDataType from,
                                CompleteDataType to)
```
    Rate coercion
    
    Parameters:
    
    from - From type
    
    to - To type
    
    Returns:
    
    Coercion value
  - forBool
```
@Deprecated
public static CompleteDataType forBool()
```
    Deprecated.
    Use forBoolean()
    
    Return the complete type for a bool.
    
    Returns:
    
    a boolean complete data type
    
    Since:
    
    6.3
  - forBoolean
```
public static CompleteDataType forBoolean()
```
    Return the complete type for a bool.
    
    Returns:
    
    a boolean complete data type
    
    Since:
    
    6.3
  - forBlob
```
public static CompleteDataType forBlob()
```
    Return the complete type for a blob.
    
    Returns:
    
    a blob complete data type.
    
    Since:
    
    6.3
  - forDouble
```
public static CompleteDataType forDouble()
```
    Return the complete type for a double.
    
    Returns:
    
    a double complete data type
    
    Since:
    
    6.3
  - forInt
```
public static CompleteDataType forInt()
```
    Return the complete type for an int.
    
    Returns:
    
    a int complete data type
    
    Since:
    
    6.3
  - forLong
```
public static CompleteDataType forLong()
```
    Return the complete type for a long.
    
    Returns:
    
    a long complete data type
    
    Since:
    
    6.3
  - forString
```
public static CompleteDataType forString()
```
    Return the complete type for a string.
    
    Returns:
    
    a string complete data type
    
    Since:
    
    6.3
  - forTimestamp
```
public static CompleteDataType forTimestamp()
```
    Return the complete type for a timestamp.
    
    Returns:
    
    a timestamp complete data type
    
    Since:
    
    6.3
  - forTuple
```
public static CompleteDataType forTuple(Schema schema)
```
    Return a tuple complete data type with the specified schema.
    
    Parameters:
    
    schema - the tuple's schema. This parameter may not be null.
    
    Returns:
    
    a tuple complete data type
    
    Since:
    
    6.3
  - forList
```
public static CompleteDataType forList(CompleteDataType elementType)
```
    Return a list complete data type with the specified element type
    
    Parameters:
    
    elementType - the list's element type
    
    Returns:
    
    a list complete data type
    
    Since:
    
    6.3
  - forDoubleList
```
public static CompleteDataType forDoubleList()
```
    Returns:
    
    the equivalence of calling forList(forDouble())
  - forIntList
```
public static CompleteDataType forIntList()
```
    Returns:
    
    the equivalence of calling forList(forInt())
  - forLongList
```
public static CompleteDataType forLongList()
```
    Returns:
    
    the equivalence of calling forList(forLong())
  - forStringList
```
public static CompleteDataType forStringList()
```
    Returns:
    
    the equivalence of calling forList(forString())
  - forBoolList
```
public static CompleteDataType forBoolList()
```
    Returns:
    
    the equivalence of calling forList(forBool())
  - forBlobList
```
public static CompleteDataType forBlobList()
```
    Returns:
    
    the equivalence of calling forList(forBlob())
  - forTimestampList
```
public static CompleteDataType forTimestampList()
```
    Returns:
    
    the equivalence of calling forList(forTimestamp())
  - forCapture
```
public static CompleteDataType forCapture(String typeName)
```
    Return a capture complete data type with the specified type parameter name. The type parameter name, to be meaningful in the context of a module, must match a type parameter name that is bound by one of the input streams of the module. (All type parameters at the top level are considered to be bound to an empty set of fields)
    
    Parameters:
    
    typeName - the type parameter name to use
    
    Returns:
    
    a CaptureType with the given type parameter name
    
    Since:
    
    7.2
  - findSuperType
```
public static CompleteDataType findSuperType(CompleteDataType t1,
                                             CompleteDataType t2)
```
    Find a type that t1 and t2 can both promote to safely
    
    Parameters:
    
    t1 - an input type or null
    
    t2 - an input type or null
    
    Returns:
    
    a type such that both t1.promoteTo() and t2.promoteTo() is safe or null if no such type is available or either argument is null
  - forFunction
```
public static CompleteDataType.FunctionType forFunction(Schema argumentSchema,
                                                        CompleteDataType returnType)
```
    Return a function's CompleteDataType with the given argument schema and return type
    
    Parameters:
    
    argumentSchema - the function's arguments. To represent no arguments, pass an empty schema, not null.
    
    returnType - the function's return type
    
    Returns:
    
    a function's CompleteDataType
    
    Since:
    
    7.4

Class CompleteDataType

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

type

SCORE_FAIL

SCORE_PASS

TYPE_TO_TYPE_SCORE

NULL_TO_TYPE_SCORE

WILDCARD_SCORE

Constructor Detail

CompleteDataType

Method Detail

getDataType

toString

toHumanString

canAssignFrom

canAssignFromImpl

rateCoercion

toHumanString

equalBaseTypes

getName

getSchema

getArgumentSchema

getElementType

getCaptureName

getReturnType

rateCoercion

forBool

forBoolean

forBlob

forDouble

forInt

forLong

forString

forTimestamp

forTuple

forList

forDoubleList

forIntList

forLongList

forStringList

forBoolList

forBlobList

forTimestampList

forCapture

findSuperType

forFunction