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

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

public final class ComparisonExpressionBNF
extends JPQLQueryBNF

The query BNF for a comparison expression.

JPA 1.0:

BNF: comparison_expression ::= string_expression comparison_operator {string_expression | all_or_any_expression} | boolean_expression { = | <> } {boolean_expression | all_or_any_expression} | enum_expression { = | <> } {enum_expression | all_or_any_expression} | datetime_expression comparison_operator {datetime_expression | all_or_any_expression} | entity_expression { = | <> } {entity_expression | all_or_any_expression} | arithmetic_expression comparison_operator {arithmetic_expression | all_or_any_expression}

JPA 2.0, 2.1:

BNF: comparison_expression ::= string_expression comparison_operator {string_expression | all_or_any_expression} | boolean_expression { = | <> } {boolean_expression | all_or_any_expression} | enum_expression { = | <> } {enum_expression | all_or_any_expression} | datetime_expression comparison_operator {datetime_expression | all_or_any_expression} | entity_expression { = | <> } {entity_expression | all_or_any_expression} | arithmetic_expression comparison_operator {arithmetic_expression | all_or_any_expression} | entity_type_expression { = | <> } entity_type_expression}

Version:

2.4.2

Author:

Pascal Filion

Since:

2.3

Field Summary

static java.lang.String

ID The unique identifier of this BNF rule.

Constructor Summary

ComparisonExpressionBNF()
Creates a new ComparisonExpressionBNF.

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

ComparisonExpressionBNF

public ComparisonExpressionBNF()

Creates a new ComparisonExpressionBNF.

Method Detail

initialize

protected void initialize()

Initializes this BNF by registering child JPQLQueryBNFs and ExpressionFactories.

Overrides:

initialize in class JPQLQueryBNF