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

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

public final class ElseExpressionBNF

extends JPQLQueryBNF

The query BNF for a else expression specified in the case expression.

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

ElseExpressionBNF()
Creates a new ElseExpressionBNF.

Method Summary

(package private) java.lang.String	getFallbackBNFId() When parsing the query and no JPQLQueryBNFs can help to parse the query, then it will fall back on this one.
boolean	handleAggregate() Determines whether the Expression handles a collection of sub-expressions that are aggregated by logical or arithmetic operators.
(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, getFallbackExpressionFactoryId, getId, handleCollection, 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

ElseExpressionBNF

ElseExpressionBNF()

Creates a new ElseExpressionBNF.

Method Detail

getFallbackBNFId

java.lang.String getFallbackBNFId()

When parsing the query and no JPQLQueryBNFs can help to parse the query, then it will fall back on this one.

Overrides:

getFallbackBNFId in class JPQLQueryBNF

Returns:

The unique identifier of the JPQLQueryBNF to use in the last resort

handleAggregate

public boolean handleAggregate()

Determines whether the Expression handles a collection of sub-expressions that are aggregated by logical or arithmetic operators.

Overrides:

handleAggregate in class JPQLQueryBNF

Returns:

true if the sub-expression to parse might have several logical and/or arithmetic expressions; false otherwise

initialize

void initialize()

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

Overrides:

initialize in class JPQLQueryBNF

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