com.sun.xacml.cond
Class AddFunction

java.lang.Object
  com.sun.xacml.cond.FunctionBase
      com.sun.xacml.cond.AddFunction

All Implemented Interfaces:

Function

public class AddFunction

extends FunctionBase

A class that implements all the *-add functions. It takes two or more operands of the appropriate type and returns the sum of the operands. If any of the operands is indeterminate, an indeterminate result is returned.

Since:

1.0

Field Summary

static String	NAME_DOUBLE_ADD Standard identifier for the double-add function.
static String	NAME_INTEGER_ADD Standard identifier for the integer-add function.

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

FUNCTION_NS

Constructor Summary

AddFunction(String functionName)
Creates a new AddFunction 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_INTEGER_ADD

public static final String NAME_INTEGER_ADD

Standard identifier for the integer-add function.

See Also:

Constant Field Values

NAME_DOUBLE_ADD

public static final String NAME_DOUBLE_ADD

Standard identifier for the double-add function.

See Also:

Constant Field Values

Constructor Detail

AddFunction

public AddFunction(String functionName)

Creates a new AddFunction 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