Package org.apache.beam.sdk.transforms.join

Class CoGbkResultSchema

java.lang.Object

org.apache.beam.sdk.transforms.join.CoGbkResultSchema

All Implemented Interfaces:

Serializable

public class CoGbkResultSchema
extends Object
implements Serializable

A schema for the results of a CoGroupByKey. This maintains the full set of TupleTags for the results of a CoGroupByKey and facilitates mapping between TupleTags and RawUnionValue tags (which are used as secondary keys in the CoGroupByKey).

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
CoGbkResultSchema(TupleTagList tupleTagList)	Builds a schema from a tuple of TupleTag<?>s.

Method Summary

Modifier and Type	Method	Description
boolean	equals(@Nullable Object obj)
int	getIndex(TupleTag<?> tag)	Returns the index for the given tuple tag, if the tag is present in this schema, -1 if it isn't.
TupleTag<?>	getTag(int index)	Returns the tuple tag at the given index.
TupleTagList	getTupleTagList()	Returns the TupleTagList tuple associated with this schema.
int	hashCode()
static CoGbkResultSchema	of(List<TupleTag<?>> tags)
int	size()	Returns the number of columns for this schema.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

CoGbkResultSchema

public CoGbkResultSchema(TupleTagList tupleTagList)

Builds a schema from a tuple of TupleTag<?>s.

Method Details

of

public static CoGbkResultSchema of(List<TupleTag<?>> tags)

getIndex

public int getIndex(TupleTag<?> tag)

Returns the index for the given tuple tag, if the tag is present in this schema, -1 if it isn't.

getTag

public TupleTag<?> getTag(int index)

Returns the tuple tag at the given index.

size

public int size()

Returns the number of columns for this schema.

getTupleTagList

public TupleTagList getTupleTagList()

Returns the TupleTagList tuple associated with this schema.

equals

public boolean equals(@Nullable Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object