org.apache.flink.table.factories.datagen.types

Class DataGeneratorMapper<A,B>

java.lang.Object

org.apache.flink.table.factories.datagen.types.DataGeneratorMapper<A,B>

All Implemented Interfaces:

Serializable, Iterator<B>, org.apache.flink.streaming.api.functions.source.datagen.DataGenerator<B>

@Internal
public class DataGeneratorMapper<A,B>
extends Object
implements org.apache.flink.streaming.api.functions.source.datagen.DataGenerator<B>

Utility for mapping the output of a DataGenerator.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	DataGeneratorMapper.SerializableFunction<A,B> A simple serializable function.

Constructor Summary

Constructors

Constructor and Description
DataGeneratorMapper(org.apache.flink.streaming.api.functions.source.datagen.DataGenerator<A> generator, DataGeneratorMapper.SerializableFunction<A,B> mapper)

Method Summary

Modifier and Type	Method and Description
boolean	hasNext()
B	next()
void	open(String name, org.apache.flink.runtime.state.FunctionInitializationContext context, org.apache.flink.api.common.functions.RuntimeContext runtimeContext)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.streaming.api.functions.source.datagen.DataGenerator

snapshotState

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Constructor Detail

DataGeneratorMapper

public DataGeneratorMapper(org.apache.flink.streaming.api.functions.source.datagen.DataGenerator<A> generator,
                           DataGeneratorMapper.SerializableFunction<A,B> mapper)

Method Detail

open

public void open(String name,
                 org.apache.flink.runtime.state.FunctionInitializationContext context,
                 org.apache.flink.api.common.functions.RuntimeContext runtimeContext)
          throws Exception

Specified by:

open in interface org.apache.flink.streaming.api.functions.source.datagen.DataGenerator<B>

Throws:

Exception

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<B>

next

public B next()

Specified by:

next in interface Iterator<B>