org.apache.flink.api.java.record.functions

Class MapPartitionFunction

java.lang.Object

org.apache.flink.api.common.functions.AbstractRichFunction

org.apache.flink.api.java.record.functions.MapPartitionFunction

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.MapPartitionFunction<org.apache.flink.types.Record,org.apache.flink.types.Record>, org.apache.flink.api.common.functions.RichFunction

Deprecated.

@Deprecated
public abstract class MapPartitionFunction
extends org.apache.flink.api.common.functions.AbstractRichFunction
implements org.apache.flink.api.common.functions.MapPartitionFunction<org.apache.flink.types.Record,org.apache.flink.types.Record>

NOTE: The Record API is marked as deprecated. It is not being developed anymore and will be removed from the code at some point. See FLINK-1106 for more details. The MapPartitionFunction must be extended to provide a map partition implementation By definition, the map partition is called for a full input set.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MapPartitionFunction() Deprecated.

Method Summary

Modifier and Type	Method and Description
abstract void	mapPartition(Iterable<org.apache.flink.types.Record> values, org.apache.flink.util.Collector<org.apache.flink.types.Record> out) Deprecated. This method must be implemented to provide a user implementation of a MapPartitionFunction.

Methods inherited from class org.apache.flink.api.common.functions.AbstractRichFunction

close, getIterationRuntimeContext, getRuntimeContext, open, setRuntimeContext

Methods inherited from class java.lang.Object

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

Constructor Detail

MapPartitionFunction

public MapPartitionFunction()

Deprecated.

Method Detail

mapPartition

public abstract void mapPartition(Iterable<org.apache.flink.types.Record> values,
                                  org.apache.flink.util.Collector<org.apache.flink.types.Record> out)
                           throws Exception

Deprecated.

This method must be implemented to provide a user implementation of a MapPartitionFunction. It is called for a full input set.

Specified by:

mapPartition in interface org.apache.flink.api.common.functions.MapPartitionFunction<org.apache.flink.types.Record,org.apache.flink.types.Record>

Parameters:

values - all input records

out - A collector that collects all output records.

Throws:

Exception - Implementations may forward exceptions, which are caught by the runtime. When the runtime catches an exception, it aborts the map task and lets the fail-over logic decide whether to retry the mapper execution.