org.deegree.filter.expression
Class Mul

java.lang.Object
  extended by org.deegree.filter.expression.Mul
All Implemented Interfaces:
Expression

public class Mul
extends Object
implements Expression

TODO add documentation here

Version:
$Revision:$, $Date:$
Author:
Markus Schneider , last edited by: $Author:$

Nested Class Summary
 
Nested classes/interfaces inherited from interface org.deegree.filter.Expression
Expression.Type
 
Constructor Summary
Mul(Expression param1, Expression param2)
           
 
Method Summary
<T> TypedObjectNode[]
evaluate(T obj, XPathEvaluator<T> xpathEvaluator)
          Determines the values of the expression for the given context object.
 Expression getParameter1()
           
 Expression getParameter2()
           
 Expression[] getParams()
          Returns the expression's paramters.
 Expression.Type getType()
          Returns the type of expression.
 String toString(String indent)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Mul

public Mul(Expression param1,
           Expression param2)
Method Detail

getParameter1

public Expression getParameter1()

getParameter2

public Expression getParameter2()

getType

public Expression.Type getType()
Description copied from interface: Expression
Returns the type of expression. Use this to safely determine the subtype of Expression.

Specified by:
getType in interface Expression
Returns:
type of expression

evaluate

public <T> TypedObjectNode[] evaluate(T obj,
                                      XPathEvaluator<T> xpathEvaluator)
                           throws FilterEvaluationException
Description copied from interface: Expression
Determines the values of the expression for the given context object.

Note that this returns an TypedObjectNode[], as an expression may evaluate to multiple values, e.g. a ValueReference that targets a multi property of a feature.

Specified by:
evaluate in interface Expression
Type Parameters:
T - type of the context object
Parameters:
obj - object that the expression is evaluated upon, must not be null
xpathEvaluator - used for evaluation of XPath expressions, must not be null
Returns:
the values of the expression, may be empty (and even contain null values), but never null
Throws:
FilterEvaluationException

toString

public String toString(String indent)
Specified by:
toString in interface Expression

getParams

public Expression[] getParams()
Description copied from interface: Expression
Returns the expression's paramters.

Specified by:
getParams in interface Expression
Returns:
the parameters of the expression


Copyright © 2011. All Rights Reserved.