org.eclipse.persistence.jpa.jpql.model.query
Class LogicalExpressionStateObject

java.lang.Object
  org.eclipse.persistence.jpa.jpql.model.query.AbstractStateObject
      org.eclipse.persistence.jpa.jpql.model.query.CompoundExpressionStateObject
          org.eclipse.persistence.jpa.jpql.model.query.LogicalExpressionStateObject

All Implemented Interfaces:

StateObject

Direct Known Subclasses:

AndExpressionStateObject, OrExpressionStateObject

public abstract class LogicalExpressionStateObject
extends CompoundExpressionStateObject

This expression represents a logical expression, which means the first and second expressions are aggregated with either the AND or the OR operator.

Version:

2.4

See Also:

AndExpressionStateObject, OrExpressionStateObject, LogicalExpression

Author:

Pascal Filion

Since:

2.4

Field Summary

Fields inherited from class org.eclipse.persistence.jpa.jpql.model.query.CompoundExpressionStateObject

LEFT_STATE_OBJECT_PROPERTY, RIGHT_STATE_OBJECT_PROPERTY

Constructor Summary

protected	LogicalExpressionStateObject(StateObject parent) Creates a new LogicalExpressionStateObject.
protected	LogicalExpressionStateObject(StateObject parent, StateObject leftStateObject, StateObject rightStateObject) Creates a new LogicalExpressionStateObject.
protected	LogicalExpressionStateObject(StateObject parent, java.lang.String leftJpqlFragment, java.lang.String rightJpqlFragment) Creates a new LogicalExpressionStateObject.

Method Summary

LogicalExpression

getExpression() Returns the actual parsed object if this StateObject representation of the JPQL query was created by parsing an existing JPQL query.

Methods inherited from class org.eclipse.persistence.jpa.jpql.model.query.CompoundExpressionStateObject

addChildren, getIdentifier, getLeft, getLeftQueryBNFId, getRight, getRightQueryBNFId, hasLeft, hasRight, isEquivalent, parseLeft, parseRight, setLeft, setRight, toTextInternal

Methods inherited from class org.eclipse.persistence.jpa.jpql.model.query.AbstractStateObject

acceptUnknownVisitor, acceptUnknownVisitor, addProblems, addPropertyChangeListener, areEquivalent, buildProblem, buildProblem, buildStateObject, buildStateObjects, checkParent, children, decorate, equals, findIdentificationVariable, firePropertyChanged, getChangeSupport, getDeclaration, getDecorator, getGrammar, getManagedTypeProvider, getParent, getQueryBuilder, getRoot, getType, getType, getTypeHelper, getTypeRepository, hashCode, initialize, isDecorated, parent, parent, parent, removePropertyChangeListener, setExpression, setParent, toString, toString, toStringInternal, toStringItems, toText

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.eclipse.persistence.jpa.jpql.model.query.StateObject

accept

Constructor Detail

LogicalExpressionStateObject

protected LogicalExpressionStateObject(StateObject parent)

Creates a new LogicalExpressionStateObject.

Parameters:

parent - The parent of this state object, which cannot be null

Throws:

java.lang.NullPointerException - The given parent cannot be null

LogicalExpressionStateObject

protected LogicalExpressionStateObject(StateObject parent,
                                       StateObject leftStateObject,
                                       StateObject rightStateObject)

Creates a new LogicalExpressionStateObject.

Parameters:

parent - The parent of this state object, which cannot be null

leftStateObject - The StateObject representing the left expression

rightStateObject - The StateObject representing the right expression

Throws:

java.lang.NullPointerException - The given parent cannot be null

LogicalExpressionStateObject

protected LogicalExpressionStateObject(StateObject parent,
                                       java.lang.String leftJpqlFragment,
                                       java.lang.String rightJpqlFragment)

Creates a new LogicalExpressionStateObject.

Parameters:

parent - The parent of this state object, which cannot be null

leftJpqlFragment - The string representation of the left expression to parse and to convert into a StateObject

rightJpqlFragment - The string representation of the right expression to parse and to convert into a StateObject

Throws:

java.lang.NullPointerException - The given parent cannot be null

Method Detail

getExpression

public LogicalExpression getExpression()

Returns the actual parsed object if this StateObject representation of the JPQL query was created by parsing an existing JPQL query.

Specified by:

getExpression in interface StateObject

Overrides:

getExpression in class CompoundExpressionStateObject

Returns:

The parsed object when a JPQL query is parsed and converted into a StateObject or null when the JPQL query is manually created (i.e. not from a string)