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

Class CrossFunction

java.lang.Object

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

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

All Implemented Interfaces:

Serializable, CrossFunction<Record,Record,Record>, Function, RichFunction

Deprecated.

@Deprecated
public abstract class CrossFunction
extends AbstractRichFunction
implements CrossFunction<Record,Record,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 CrossFunction is the base class for functions that are invoked by a CrossOperator.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CrossFunction() Deprecated.

Method Summary

Methods

Modifier and Type	Method and Description
abstract Record	cross(Record first, Record second) Deprecated. This method must be implemented to provide a user implementation of a cross.

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

CrossFunction

public CrossFunction()

Deprecated.

Method Detail

cross

public abstract Record cross(Record first,
           Record second)
                      throws Exception

Deprecated.

This method must be implemented to provide a user implementation of a cross. It is called for each element of the Cartesian product of both input sets.

Specified by:

cross in interface CrossFunction<Record,Record,Record>

Parameters:

first - The record from the second input.

second - The record from the second input.

Returns:

The result of the cross UDF

Throws:

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