org.apache.flink.table.operations.utils.factories

Class SetOperationFactory

java.lang.Object

org.apache.flink.table.operations.utils.factories.SetOperationFactory

@Internal
public class SetOperationFactory
extends Object

Utility class for creating a valid SetQueryOperation.

Constructor Summary

Constructors

Constructor and Description
SetOperationFactory(boolean isStreamingMode)

Method Summary

Modifier and Type	Method and Description
QueryOperation	create(SetQueryOperation.SetQueryOperationType type, QueryOperation left, QueryOperation right, boolean all) Creates a valid algebraic operation.

Methods inherited from class java.lang.Object

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

Constructor Detail

SetOperationFactory

public SetOperationFactory(boolean isStreamingMode)

Method Detail

create

public QueryOperation create(SetQueryOperation.SetQueryOperationType type,
                             QueryOperation left,
                             QueryOperation right,
                             boolean all)

Creates a valid algebraic operation.

Parameters:

type - type of operation to create

left - first relational operation of the operation

right - second relational operation of the operation

all - flag defining how duplicates should be handled

Returns:

creates a valid algebraic operation