org.eclipse.persistence.jpa.internal.jpql.parser
Class SelectClauseBNF

java.lang.Object
org.eclipse.persistence.jpa.internal.jpql.parser.JPQLQueryBNF
org.eclipse.persistence.jpa.internal.jpql.parser.SelectClauseBNF

public final class SelectClauseBNF

extends JPQLQueryBNF

The query BNF for the select clause.

BNF: select_clause ::= SELECT [DISTINCT] select_item {, select_item}*

Since:

2.3

Version:

2.3

Author:

Pascal Filion

Field Summary

static java.lang.String

ID The unique identifier of this BNF rule.

Constructor Summary

SelectClauseBNF()
Creates a new SelectClauseBNF.

Method Summary

boolean	handleCollection() Determines whether the Expression handles a collection of sub-expressions that are separated by commas.
(package private) void	initialize() Initializes this BNF rule by registering child BNF rules and expression factories.

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

addChildren, children, expressionFactory, expressionFactoryIds, getFallbackBNFId, getFallbackExpressionFactoryId, getId, handleAggregate, hasIdentifier, identifiers, isCompound, nonCompoundChildren, registerChild, registerExpressionFactory, 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

SelectClauseBNF

SelectClauseBNF()

Creates a new SelectClauseBNF.

Method Detail

handleCollection

public boolean handleCollection()

Determines whether the Expression handles a collection of sub-expressions that are separated by commas.

Overrides:

handleCollection in class JPQLQueryBNF

Returns:

true if the sub-expression to parse might have several sub-expressions separated by commas; false otherwise

initialize

void initialize()

Initializes this BNF rule by registering child BNF rules and expression factories.

Overrides:

initialize in class JPQLQueryBNF