org.eclipse.persistence.jpa.jpql.parser

Class ScalarExpressionBNF

java.lang.Object

org.eclipse.persistence.jpa.jpql.parser.JPQLQueryBNF

org.eclipse.persistence.jpa.jpql.parser.ScalarExpressionBNF

public final class ScalarExpressionBNF
extends JPQLQueryBNF

The query BNF for a scalar expression.

JPA 1.0:

BNF: scalar_expression ::= simple_arithmetic_expression | string_primary | enum_primary | datetime_primary | boolean_primary

JPA 2.0

BNF: scalar_expression ::= simple_arithmetic_expression | string_primary | enum_primary | datetime_primary | boolean_primary | case_expression | entity_type_expression

Version:

2.5

Author:

Pascal Filion

Since:

2.3

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	ID The unique identifier of this BNF rule.

Constructor Summary

Constructors

Constructor and Description
ScalarExpressionBNF() Creates a new SelectExpressionBNF.

Method Summary

Methods

Modifier and Type	Method and Description
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, handlesNestedArray, handleSubExpression, hasChild, hasIdentifier, isCompound, nonCompoundChildren, registerChild, registerExpressionFactory, setCompound, setFallbackBNFId, setFallbackExpressionFactoryId, setHandleAggregate, setHandleCollection, setHandleNestedArray, 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

ScalarExpressionBNF

public ScalarExpressionBNF()

Creates a new SelectExpressionBNF.

Method Detail

initialize

protected void initialize()

Initializes this BNF by registering child JPQLQueryBNFs and ExpressionFactories.

Overrides:

initialize in class JPQLQueryBNF