public final Class SelectExpressionBNF

Class Inheritance

extends JPQLQueryBNF

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

Annotations

@SuppressWarnings:nls

The query BNF for a select expression.

JPA 1.0:

BNF:

select_expression ::= single_valued_path_expression |
                                                    aggregate_expression |
                                                    identification_variable |
                                                    OBJECT(identification_variable) |
                                                    constructor_expression

JPA 2.0:

BNF:

select_expression ::= single_valued_path_expression |
                                                    scalar_expression |
                                                    aggregate_expression |
                                                    identification_variable |
                                                    OBJECT(identification_variable) |
                                                    constructor_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	SelectExpressionBNF() 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

SelectExpressionBNF	back to summary
public SelectExpressionBNF() 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