com.google.cloud.dataflow.sdk.coders

Class CoderRegistry.ConstantCoderFactory

java.lang.Object

com.google.cloud.dataflow.sdk.coders.CoderRegistry.ConstantCoderFactory

All Implemented Interfaces:

CoderFactory

Enclosing class:

CoderRegistry

public class CoderRegistry.ConstantCoderFactory
extends java.lang.Object
implements CoderFactory

A factory that always returns the coder with which it is instantiated.

Constructor Summary

Constructors

Constructor and Description
CoderRegistry.ConstantCoderFactory(Coder<?> coder)

Method Summary

Methods

Modifier and Type	Method and Description
Coder<?>	create(java.util.List<? extends Coder<?>> typeArgumentCoders) Returns a Coder<?>, given argument coder to use for values of a particular type, given the Coders for each of the type's generic parameter types.
java.util.List<java.lang.Object>	getInstanceComponents(java.lang.Object value) Returns a list of objects contained in value, one per type argument, or null if none can be determined.

Methods inherited from class java.lang.Object

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

Constructor Detail

CoderRegistry.ConstantCoderFactory

public CoderRegistry.ConstantCoderFactory(Coder<?> coder)

Method Detail

create

public Coder<?> create(java.util.List<? extends Coder<?>> typeArgumentCoders)

Description copied from interface: CoderFactory

Returns a Coder<?>, given argument coder to use for values of a particular type, given the Coders for each of the type's generic parameter types.

Specified by:

create in interface CoderFactory

getInstanceComponents

public java.util.List<java.lang.Object> getInstanceComponents(java.lang.Object value)

Description copied from interface: CoderFactory

Returns a list of objects contained in value, one per type argument, or null if none can be determined. The list of returned objects should be the same size as the list of coders required by CoderFactory.create(java.util.List<? extends com.google.cloud.dataflow.sdk.coders.Coder<?>>).

Specified by:

getInstanceComponents in interface CoderFactory