org.apache.openjpa.persistence.criteria
Class OrderImpl

java.lang.Object
  extended by org.apache.openjpa.persistence.criteria.OrderImpl
All Implemented Interfaces:
Order, CriteriaExpression

 class OrderImpl
extends Object
implements Order, CriteriaExpression

Ordering clause of a criteria query.

Author:
Pinaki Poddar

Constructor Summary
OrderImpl(Expression<?> e)
           
OrderImpl(Expression<?> e, boolean asc)
           
 
Method Summary
 void acceptVisit(CriteriaExpressionVisitor visitor)
          Accept visit from the given visitor.
 StringBuilder asProjection(AliasContext q)
          Get a string representation of this node as a projection term in the context of the given query.
 StringBuilder asValue(AliasContext q)
          Get a string representation of this node as a value in the context of the given query.
 StringBuilder asVariable(AliasContext q)
          Get a string representation of this node as a variable in the context of the given query.
 ExpressionImpl<?> getExpression()
           
 boolean isAscending()
           
 Order reverse()
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

OrderImpl

public OrderImpl(Expression<?> e,
                 boolean asc)

OrderImpl

public OrderImpl(Expression<?> e)
Method Detail

getExpression

public ExpressionImpl<?> getExpression()
Specified by:
getExpression in interface Order

isAscending

public boolean isAscending()
Specified by:
isAscending in interface Order

reverse

public Order reverse()
Specified by:
reverse in interface Order

acceptVisit

public void acceptVisit(CriteriaExpressionVisitor visitor)
Description copied from interface: CriteriaExpression
Accept visit from the given visitor. The receiver is responsible to propagate the visitor to the constituent sub-nodes if any.

Specified by:
acceptVisit in interface CriteriaExpression
Parameters:
visitor - a processor to walk the nodes of a tree.

asValue

public StringBuilder asValue(AliasContext q)
Description copied from interface: CriteriaExpression
Get a string representation of this node as a value in the context of the given query.

Specified by:
asValue in interface CriteriaExpression

asProjection

public StringBuilder asProjection(AliasContext q)
Description copied from interface: CriteriaExpression
Get a string representation of this node as a projection term in the context of the given query.

Specified by:
asProjection in interface CriteriaExpression

asVariable

public StringBuilder asVariable(AliasContext q)
Description copied from interface: CriteriaExpression
Get a string representation of this node as a variable in the context of the given query.

Specified by:
asVariable in interface CriteriaExpression


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