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

java.lang.Object
  org.jboss.security.xacml.sunxacml.cond.FunctionBase
      org.jboss.security.xacml.sunxacml.cond.FloorFunction

All Implemented Interfaces:

Expression, Function

public class FloorFunction
extends FunctionBase

A class that implements the floor function. It takes one double operand, chooses the largest integer less than or equal to that value, and returns that integer (as a double). If the operand is indeterminate, an indeterminate result is returned.

Since:

1.0

Author:

Steve Hanna, Seth Proctor

Field Summary

static String

NAME_FLOOR Standard identifier for the floor function.

Fields inherited from class org.jboss.security.xacml.sunxacml.cond.FunctionBase

FUNCTION_NS, FUNCTION_NS_2

Constructor Summary

FloorFunction(String functionName)
Creates a new FloorFunction 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_FLOOR

public static final String NAME_FLOOR

Standard identifier for the floor function.

See Also:

Constant Field Values

Constructor Detail

FloorFunction

public FloorFunction(String functionName)

Creates a new FloorFunction 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