org.apache.beam.sdk.extensions.joinlibrary

Class Join.LeftOuterJoin<K,V1,V2>

java.lang.Object

org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<K,V1>>,org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<K,org.apache.beam.sdk.values.KV<V1,V2>>>>

org.apache.beam.sdk.extensions.joinlibrary.Join.LeftOuterJoin<K,V1,V2>

Type Parameters:

K - Type of the key for both collections

V1 - Type of the values for the left collection.

V2 - Type of the values for the right collection.

All Implemented Interfaces:

java.io.Serializable, org.apache.beam.sdk.transforms.display.HasDisplayData

Enclosing class:

Join

public static class Join.LeftOuterJoin<K,V1,V2>
extends org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<K,V1>>,org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<K,org.apache.beam.sdk.values.KV<V1,V2>>>>

PTransform representing a left outer join of two collections of KV elements.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.beam.sdk.transforms.PTransform

name, resourceHints

Method Summary

Modifier and Type	Method and Description
org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<K,org.apache.beam.sdk.values.KV<V1,V2>>>	expand(org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<K,V1>> leftCollection)
static <K,V1,V2> Join.LeftOuterJoin<K,V1,V2>	with(org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<K,V2>> rightCollection, V2 nullValue)

Methods inherited from class org.apache.beam.sdk.transforms.PTransform

compose, compose, getAdditionalInputs, getDefaultOutputCoder, getDefaultOutputCoder, getDefaultOutputCoder, getKindString, getName, getResourceHints, populateDisplayData, setResourceHints, toString, validate, validate

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

with

public static <K,V1,V2> Join.LeftOuterJoin<K,V1,V2> with(org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<K,V2>> rightCollection,
                                                         V2 nullValue)

expand

public org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<K,org.apache.beam.sdk.values.KV<V1,V2>>> expand(org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<K,V1>> leftCollection)

Specified by:

expand in class org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<K,V1>>,org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<K,org.apache.beam.sdk.values.KV<V1,V2>>>>