com.sun.xacml.cond
Class GeneralBagFunction

java.lang.Object
  com.sun.xacml.cond.FunctionBase
      com.sun.xacml.cond.BagFunction
          com.sun.xacml.cond.GeneralBagFunction

All Implemented Interfaces:

Function

public class GeneralBagFunction

extends BagFunction

Specific BagFunction class that supports all of the general-purpose bag functions: type-one-and-only, type-bag-size, and type-bag.

Since:

1.2

Field Summary

Fields inherited from class com.sun.xacml.cond.BagFunction

baseTypes, NAME_BASE_BAG, NAME_BASE_BAG_SIZE, NAME_BASE_IS_IN, NAME_BASE_ONE_AND_ONLY, simpleTypes

Fields inherited from class com.sun.xacml.cond.FunctionBase

FUNCTION_NS

Constructor Summary

GeneralBagFunction(String functionName)
Constructor that is used to create one of the general-purpose standard bag functions.

GeneralBagFunction(String functionName, String datatype, String functionType)
Constructor that is used to create instances of general-purpose bag functions for new (non-standard) datatypes.

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.BagFunction

getBagInstance, getBagSizeInstance, getIsInInstance, getOneAndOnlyInstance

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

Constructor Detail

GeneralBagFunction

public GeneralBagFunction(String functionName)

Constructor that is used to create one of the general-purpose standard bag functions. The name supplied must be one of the standard XACML functions supported by this class, including the full namespace, otherwise an exception is thrown. Look in BagFunction for details about the supported names.

Parameters:

functionName - the name of the function to create

Throws:

IllegalArgumentException - if the function is unknown

GeneralBagFunction

public GeneralBagFunction(String functionName,
                          String datatype,
                          String functionType)

Constructor that is used to create instances of general-purpose bag functions for new (non-standard) datatypes. This is equivalent to using the getInstance methods in BagFunction and is generally only used by the run-time configuration code.

Parameters:

functionName - the name of the new function

datatype - the full identifier for the supported datatype

functionType - which kind of Bag function, based on the NAME_BASE_* fields

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