org.jboss.security.xacml.sunxacml.cond
Class StringFunction

java.lang.Object
  extended by org.jboss.security.xacml.sunxacml.cond.FunctionBase
      extended by org.jboss.security.xacml.sunxacml.cond.StringFunction
All Implemented Interfaces:
Expression, Function

public class StringFunction
extends FunctionBase

This class implements the string-concatenate function from XACML 2.0.

Since:
2.0
Author:
Seth Proctor

Field Summary
static String NAME_STRING_CONCATENATE
          Standard identifier for the string-concatenate function.
 
Fields inherited from class org.jboss.security.xacml.sunxacml.cond.FunctionBase
FUNCTION_NS, FUNCTION_NS_2
 
Constructor Summary
StringFunction(String functionName)
          Creates a new StringFunction 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 org.jboss.security.xacml.sunxacml.cond.FunctionBase
checkInputs, checkInputsNoBag, encode, encode, evalArgs, getFunctionId, getFunctionName, getIdentifier, getReturnType, getReturnTypeAsString, getType, makeProcessingError, returnsBag
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

NAME_STRING_CONCATENATE

public static final String NAME_STRING_CONCATENATE
Standard identifier for the string-concatenate function.

See Also:
Constant Field Values
Constructor Detail

StringFunction

public StringFunction(String functionName)
Creates a new StringFunction 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


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