com.jscape.util.workflow
Class NullExpression

java.lang.Object
  extended by com.jscape.util.workflow.NullExpression
All Implemented Interfaces:
Expression

public final class NullExpression
extends java.lang.Object
implements Expression

"Special case": null expression.

Author:
Alex

Constructor Summary
NullExpression()
           
 
Method Summary
 java.lang.Object compute(Context context)
          Computes expression value.
 java.lang.String toString()
           
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

NullExpression

public NullExpression()
Method Detail

compute

public java.lang.Object compute(Context context)
Description copied from interface: Expression
Computes expression value.

Specified by:
compute in interface Expression
Parameters:
context - the workflow context
Returns:
computed value

toString

public java.lang.String toString()
Overrides:
toString in class java.lang.Object


Copyright © 2007 JSCAPE Corp. All Rights Reserved.