org.eclipse.persistence.jpa.jpql.parser
Class UnionClauseBNF

java.lang.Object
  org.eclipse.persistence.jpa.jpql.parser.JPQLQueryBNF
      org.eclipse.persistence.jpa.jpql.parser.UnionClauseBNF

public final class UnionClauseBNF
extends JPQLQueryBNF

The query BNF for the order by clause.

BNF: union_clause ::= { UNION | INTERSECT | EXCEPT } [ALL] subquery

Version:

2.4

Author:

James Sutherland

Since:

2.4

Field Summary

static java.lang.String

ID The unique identifier of this BNF rule.

Constructor Summary

UnionClauseBNF()
Creates a new UnionClauseBNF.

Method Summary

protected void

initialize() Initializes this BNF by registering child JPQLQueryBNFs and ExpressionFactories.

Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.JPQLQueryBNF

children, getExpressionFactory, getExpressionFactoryIds, getExpressionRegistry, getFallbackBNFId, getFallbackExpressionFactoryId, getId, getIdentifiers, handleAggregate, handleCollection, handlesSubExpression, hasIdentifier, isCompound, nonCompoundChildren, registerChild, registerExpressionFactory, setCompound, setFallbackBNFId, setFallbackExpressionFactoryId, setHandleAggregate, setHandleCollection, setHandleSubExpression, toString, toString

Methods inherited from class java.lang.Object

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

Field Detail

ID

public static final java.lang.String ID

The unique identifier of this BNF rule.

See Also:

Constant Field Values

Constructor Detail

UnionClauseBNF

public UnionClauseBNF()

Creates a new UnionClauseBNF.

Method Detail

initialize

protected void initialize()

Initializes this BNF by registering child JPQLQueryBNFs and ExpressionFactories.

Overrides:

initialize in class JPQLQueryBNF