org.apache.beam.sdk.values

Class PCollectionViews.ListViewFn<T>

java.lang.Object

org.apache.beam.sdk.transforms.ViewFn<Materializations.MultimapView<java.lang.Void,T>,java.util.List<T>>

org.apache.beam.sdk.values.PCollectionViews.ListViewFn<T>

All Implemented Interfaces:

java.io.Serializable

Enclosing class:

PCollectionViews

@Experimental(value=CORE_RUNNERS_ONLY)
public static class PCollectionViews.ListViewFn<T>
extends ViewFn<Materializations.MultimapView<java.lang.Void,T>,java.util.List<T>>

Implementation which is able to adapt a multimap materialization to a List<T>.

For internal use only.

Instantiate via PCollectionViews.listView(org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.KV<java.lang.Void, T>>, org.apache.beam.sdk.values.WindowingStrategy<?, W>).

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ListViewFn()

Method Summary

Modifier and Type	Method and Description
java.util.List<T>	apply(Materializations.MultimapView<java.lang.Void,T> primitiveViewT) A function to adapt a primitive view type to a desired view type.
boolean	equals(java.lang.Object other)
Materialization<Materializations.MultimapView<java.lang.Void,T>>	getMaterialization() Gets the materialization of this ViewFn.
int	hashCode()

Methods inherited from class java.lang.Object

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

Constructor Detail

ListViewFn

public ListViewFn()

Method Detail

getMaterialization

public Materialization<Materializations.MultimapView<java.lang.Void,T>> getMaterialization()

Description copied from class: ViewFn

Gets the materialization of this ViewFn.

Specified by:

getMaterialization in class ViewFn<Materializations.MultimapView<java.lang.Void,T>,java.util.List<T>>

apply

public java.util.List<T> apply(Materializations.MultimapView<java.lang.Void,T> primitiveViewT)

Description copied from class: ViewFn

A function to adapt a primitive view type to a desired view type.

Specified by:

apply in class ViewFn<Materializations.MultimapView<java.lang.Void,T>,java.util.List<T>>

equals

public boolean equals(java.lang.Object other)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object