wt.query
Class SetOperator

java.lang.Object
  wt.query.SQLOperator
      wt.query.SetOperator

All Implemented Interfaces:

Serializable

public class SetOperator

extends SQLOperator

implements Serializable

This class represents a Set Operator.

This class defines the following static final Set Operators: UNION, UNION_ALL, INTERSECT, and MINUS.

Supported API: true

Extendable: false

See Also:

Serialized Form

Field Summary

private static String	CLASSNAME
static SetOperator	INTERSECT Deprecated. as of R8.0, this keyword is not standard on all datastores. An EXISTS sub-query can be used instead.
static SetOperator	MINUS Deprecated. as of R8.0, this keyword is not standard on all datastores. A NOT EXISTS sub-query can be used instead.
private static String	RESOURCE
static SetOperator	UNION Specifies a UNION set operator.
static SetOperator	UNION_ALL Specifies a UNION ALL set operator.

Fields inherited from class wt.query.SQLOperator

Constructor Summary

private

SetOperator(String a_value)

Methods inherited from class wt.query.SQLOperator

getValue, toString

Methods inherited from class java.lang.Object

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

Field Detail

RESOURCE

private static final String RESOURCE

See Also:

Constant Field Values

CLASSNAME

private static final String CLASSNAME

UNION

public static final SetOperator UNION

Specifies a UNION set operator.

Supported API: true

UNION_ALL

public static final SetOperator UNION_ALL

Specifies a UNION ALL set operator.

Supported API: true

INTERSECT

public static final SetOperator INTERSECT

Deprecated. as of R8.0, this keyword is not standard on all datastores. An EXISTS sub-query can be used instead.

Specifies a INTERSECT set operator.

Supported API: false

MINUS

public static final SetOperator MINUS

Deprecated. as of R8.0, this keyword is not standard on all datastores. A NOT EXISTS sub-query can be used instead.

Specifies a MINUS set operator.

Supported API: false

Constructor Detail

SetOperator

private SetOperator(String a_value)

Parameters:

a_value -