Package com.streambase.sb

Interface Tuple.TupleFormatter

All Known Implementing Classes:

Tuple.DefaultTupleFormatter

Enclosing class:

Tuple

public static interface Tuple.TupleFormatter

This interface is not public API, and should not be implemented by users. Use the default StreamBase implementation via Tuple.getTupleFormatter() or customize your formatter by subclassing Tuple.DefaultTupleFormatter instead.

Used to format tuple fields, by converting a StreamBase field's value to a string. TupleFormatters must handle the case for when the given value is null, but should never return null.

See Also:

• Tuple.getFieldAsString(com.streambase.sb.Schema.Field, com.streambase.sb.Tuple.TupleFormatter)

Method Summary

Modifier and Type	Method	Description
CharSequence	formatBlob(ByteArrayView blob)	Return a string representation of the given StreamBase blob value
CharSequence	formatBool(Boolean b)	Return a string representation of the given StreamBase boolean value
CharSequence	formatDouble(Double d)	Return a string representation of the given StreamBase double value
CharSequence	formatFunction(Function f)	Return a string representation of the given StreamBase function
CharSequence	formatInt(Integer i)	Return a string representation of the given StreamBase integer value
CharSequence	formatList(CompleteDataType elementType, List<?> l)	Return a string representation of the given StreamBase list
CharSequence	formatLong(Long l)	Return a string representation of the given StreamBase long value
CharSequence	formatString(String s)	Return a string representation of the given StreamBase string value
CharSequence	formatTimestamp(Timestamp t)	Return a string representation of the given StreamBase timestamp value
CharSequence	formatTuple(Tuple t)	Return a string representation of the given StreamBase Tuple value

Method Details

formatBlob

CharSequence formatBlob(ByteArrayView blob)

Return a string representation of the given StreamBase blob value

Parameters:

blob - may be null

Returns:

a non-null string representation of the value given

formatTimestamp

CharSequence formatTimestamp(Timestamp t)

Return a string representation of the given StreamBase timestamp value

Parameters:

t - may be null

Returns:

a non-null string representation of the value given

formatString

CharSequence formatString(String s)

Return a string representation of the given StreamBase string value

Parameters:

s - may be null

Returns:

a non-null string representation of the value given

formatInt

CharSequence formatInt(Integer i)

Return a string representation of the given StreamBase integer value

Parameters:

i - may be null

Returns:

a non-null string representation of the value given

formatDouble

CharSequence formatDouble(Double d)

Return a string representation of the given StreamBase double value

Parameters:

d - may be null

Returns:

a non-null string representation of the value given

formatLong

CharSequence formatLong(Long l)

Return a string representation of the given StreamBase long value

Parameters:

l - may be null

Returns:

a non-null string representation of the value given

formatBool

CharSequence formatBool(Boolean b)

Return a string representation of the given StreamBase boolean value

Parameters:

b - may be null

Returns:

a non-null string representation of the value given

formatTuple

CharSequence formatTuple(Tuple t)

Return a string representation of the given StreamBase Tuple value

Parameters:

t - may be null

Returns:

a non-null string representation of the value given

formatList

CharSequence formatList(CompleteDataType elementType,
 List<?> l)

Return a string representation of the given StreamBase list

Parameters:

elementType - the data type of all list elements

l - may be null

Returns:

a non-null string representation of the value given

formatFunction

CharSequence formatFunction(Function f)

Return a string representation of the given StreamBase function

Parameters:

f - may be null

Returns:

a non-null string representation of the value given

Since:

7.4