org.eclipse.persistence.jpa.jpql.tools.resolver

Class AbstractRangeDeclaration

java.lang.Object

org.eclipse.persistence.jpa.jpql.tools.resolver.Declaration

org.eclipse.persistence.jpa.jpql.tools.resolver.AbstractRangeDeclaration

All Implemented Interfaces:

JPQLQueryDeclaration

Direct Known Subclasses:

DerivedDeclaration, RangeDeclaration

public abstract class AbstractRangeDeclaration
extends Declaration

The abstract definition of a range declaration, which is used to navigate to a "root" object.

Since:

2.5

Version:

2.5

Author:

Pascal Filion

See Also:

DerivedDeclaration, RangeDeclaration

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.persistence.jpa.jpql.JPQLQueryDeclaration

JPQLQueryDeclaration.Type

Constructor Summary

Constructors

Constructor and Description
AbstractRangeDeclaration() Creates a new AbstractRangeDeclaration.

Method Summary

Modifier and Type	Method and Description
java.util.List<Join>	getJoins() Returns the JOIN expressions defined with this declaration, if supported.
boolean	hasJoins() Determines whether the declaration contains JOIN expressions.

Methods inherited from class org.eclipse.persistence.jpa.jpql.tools.resolver.Declaration

getBaseExpression, getDeclarationExpression, getIdentificationVariable, getRootPath, getVariableName, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.eclipse.persistence.jpa.jpql.JPQLQueryDeclaration

getType

Constructor Detail

AbstractRangeDeclaration

public AbstractRangeDeclaration()

Creates a new AbstractRangeDeclaration.

Method Detail

getJoins

public java.util.List<Join> getJoins()

Returns the JOIN expressions defined with this declaration, if supported. The list contains the JOIN expressions in ordered they were declared.

Specified by:

getJoins in interface JPQLQueryDeclaration

Overrides:

getJoins in class Declaration

Returns:

The JOIN expressions defined with this declaration or an empty list if this declaration does not support it

hasJoins

public boolean hasJoins()

Determines whether the declaration contains JOIN expressions. This can be true only when JPQLQueryDeclaration.Type.isRange() returns true. A collection member declaration does not have JOIN expressions.

Specified by:

hasJoins in interface JPQLQueryDeclaration

Overrides:

hasJoins in class Declaration

Returns:

true if at least one JOIN expression was parsed; otherwise false