public final Class ScalarExpressionBNF

Class Inheritance

extends JPQLQueryBNF

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

Annotations

@SuppressWarnings:nls

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

Author: Pascal Filion
Since: 2.3
Version: 2.5

Field Summary

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

Constructor Summary

Access	Constructor and Description
public	ScalarExpressionBNF() Creates a new `SelectExpressionBNF`.

Method Summary

Modifier and Type	Method and Description
protected void	initialize() Overrides org.eclipse.persistence.jpa.jpql.parser.JPQLQueryBNF.initialize. Initializes this BNF by registering child `JPQLQueryBNFs` and `ExpressionFactories`.

Field Detail

ID	back to summary
public static final String ID The unique identifier of this BNF rule.

Constructor Detail

ScalarExpressionBNF	back to summary
public ScalarExpressionBNF() Creates a new `SelectExpressionBNF`.

Method Detail

initialize back to summary

initialize	back to summary
protected void initialize() Overrides org.eclipse.persistence.jpa.jpql.parser.JPQLQueryBNF.initialize. Doc from org.eclipse.persistence.jpa.jpql.parser.JPQLQueryBNF.initialize. Initializes this BNF by registering child `JPQLQueryBNFs` and `ExpressionFactories`. Annotations @Override

protected void initialize()

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

Doc from org.eclipse.persistence.jpa.jpql.parser.JPQLQueryBNF.initialize.

Initializes this BNF by registering child JPQLQueryBNFs and ExpressionFactories.

Annotations

@Override