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

Class MapFunction

java.lang.Object

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

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

All Implemented Interfaces:

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

Deprecated.

@Deprecated
public abstract class MapFunction
extends org.apache.flink.api.common.functions.AbstractRichFunction
implements org.apache.flink.api.common.functions.GenericCollectorMap<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 MapFunction must be extended to provide a mapper implementation By definition, the mapper is called for each individual input record.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MapFunction() Deprecated.

Method Summary

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

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

Methods inherited from interface org.apache.flink.api.common.functions.RichFunction

close, getRuntimeContext, open, setRuntimeContext

Constructor Detail

MapFunction

public MapFunction()

Deprecated.

Method Detail

map

public abstract void map(org.apache.flink.types.Record record,
                         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 mapper. It is called for each individual record.

Specified by:

map in interface org.apache.flink.api.common.functions.GenericCollectorMap<org.apache.flink.types.Record,org.apache.flink.types.Record>

Parameters:

record - The record to be mapped.

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.