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com.sun.xacml.cond
Class NOfFunction  

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

All Implemented Interfaces:

Function

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public class NOfFunction

extends FunctionBase

A class that implements the n-of function. It requires at least one argument. The first argument must be an integer and the rest of the arguments must be booleans. If the number of boolean arguments that evaluate to true is at least the value of the first argument, the function returns true. Otherwise, it returns false (or indeterminate, as described in the next paragraph.

This function evaluates the arguments one at a time, starting with the first one. As soon as the result of the function can be determined, evaluation stops and that result is returned. During this process, if any argument evaluates to indeterminate, an indeterminate result is returned.

Since:

1.0

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Field Summary
static java.lang.String	NAME_N_OF           Standard identifier for the n-of function.

 

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

FUNCTION_NS

 

Constructor Summary

NOfFunction(java.lang.String functionName)           Creates a new NOfFunction object.

 

Method Summary
void	checkInputs(java.util.List inputs)           Default handling of input checking.
void	checkInputsNoBag(java.util.List inputs)           Default handling of input checking.
EvaluationResult	evaluate(java.util.List inputs, com.sun.xacml.EvaluationCtx context)           Evaluate the function, using the specified parameters.
static java.util.Set	getSupportedIdentifiers()           Returns a Set containing all the function identifiers supported by this class.

 

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

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_N_OF

public static final java.lang.String NAME_N_OF

Standard identifier for the n-of function.

See Also:

Constant Field Values

Constructor Detail

NOfFunction

public NOfFunction(java.lang.String functionName)

Creates a new NOfFunction object.

Method Detail

getSupportedIdentifiers

public static java.util.Set getSupportedIdentifiers()

Returns a Set containing all the function identifiers supported by this class.

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evaluate

public EvaluationResult evaluate(java.util.List inputs,
                                 com.sun.xacml.EvaluationCtx context)

Evaluate the function, using the specified parameters.

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checkInputs

public void checkInputs(java.util.List inputs)
                 throws java.lang.IllegalArgumentException

Description copied from class: FunctionBase

Default handling of input checking. This does some simple checking based on the type of constructor used. If you need anything more complex, or if you used the simple constructor, then you must override this method.

Specified by:

checkInputs in interface Function

Overrides:

checkInputs in class FunctionBase

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checkInputsNoBag

public void checkInputsNoBag(java.util.List inputs)
                      throws java.lang.IllegalArgumentException

Description copied from class: FunctionBase

Default handling of input checking. This does some simple checking based on the type of constructor used. If you need anything more complex, or if you used the simple constructor, then you must override this method.

Specified by:

checkInputsNoBag in interface Function

Overrides:

checkInputsNoBag in class FunctionBase

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