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

java.lang.Object
  extended by org.jboss.security.xacml.sunxacml.cond.FunctionBase
      extended by 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


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