SunTM's XACML Implementation for JavaTM

com.sun.xacml.cond
Class NotFunction

java.lang.Object
  extended bycom.sun.xacml.cond.FunctionBase
      extended bycom.sun.xacml.cond.NotFunction
All Implemented Interfaces:
Function

public class NotFunction
extends FunctionBase

A class that implements the not function. This function takes one boolean argument and returns the logical negation of that value. If the argument evaluates to indeterminate, an indeterminate result is returned.

Since:
1.0

Field Summary
static String NAME_NOT
          Standard identifier for the not function.
 
Fields inherited from class com.sun.xacml.cond.FunctionBase
FUNCTION_NS
 
Constructor Summary
NotFunction(String functionName)
          Creates a new NotFunction object.
 
Method Summary
 EvaluationResult evaluate(List inputs, EvaluationCtx context)
          Evaluate the function, using the specified parameters.
static Set getSupportedIdentifiers()
          Returns a Set containing all the function identifiers supported by this class.
 
Methods inherited from class com.sun.xacml.cond.FunctionBase
checkInputs, checkInputsNoBag, evalArgs, getFunctionId, getFunctionName, getIdentifier, getReturnType, getReturnTypeAsString, makeProcessingError, returnsBag
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

NAME_NOT

public static final String NAME_NOT
Standard identifier for the not function.

See Also:
Constant Field Values
Constructor Detail

NotFunction

public NotFunction(String functionName)
Creates a new NotFunction object.

Parameters:
functionName - the standard XACML name of the function to be handled by this object, including the full namespace
Throws:
IllegalArgumentException - if the function is unknown
Method Detail

getSupportedIdentifiers

public static Set getSupportedIdentifiers()
Returns a Set containing all the function identifiers supported by this class.

Returns:
a Set of Strings

evaluate

public EvaluationResult evaluate(List inputs,
                                 EvaluationCtx context)
Evaluate the function, using the specified parameters.

Parameters:
inputs - a List of Evaluatable objects representing the arguments passed to the function
context - an EvaluationCtx so that the Evaluatable objects can be evaluated
Returns:
an EvaluationResult representing the function's result

Sun's XACML Implementation Version 1.2

Copyright 2003-2004 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.

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