org.wso2.balana.combine.xacml3

Class DenyOverridesPolicyAlg

java.lang.Object

org.wso2.balana.combine.CombiningAlgorithm

org.wso2.balana.combine.PolicyCombiningAlgorithm

org.wso2.balana.combine.xacml3.DenyOverridesPolicyAlg

Direct Known Subclasses:

OrderedDenyOverridesPolicyAlg

public class DenyOverridesPolicyAlg
extends PolicyCombiningAlgorithm

This is the new (XACML 3.0) the standard Deny Overrides policy combining algorithm. It allows a single evaluation of Deny to take precedence over any number of permit, not applicable or indeterminate results. Notethat since this implementation does an ordered evaluation, this class also supports the Ordered Deny Overrides algorithm.

Field Summary

Fields

Modifier and Type	Field and Description
static String	algId The standard URN used to identify this algorithm

Constructor Summary

Constructors

Modifier	Constructor and Description
	DenyOverridesPolicyAlg() Standard constructor.
protected	DenyOverridesPolicyAlg(URI identifier) Protected constructor used by the ordered version of this algorithm.

Method Summary

Modifier and Type	Method and Description
AbstractResult	combine(EvaluationCtx context, List parameters, List policyElements) Applies the combining rule to the set of policies based on the evaluation context.

Methods inherited from class org.wso2.balana.combine.CombiningAlgorithm

getIdentifier

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

algId

public static final String algId

The standard URN used to identify this algorithm

See Also:

Constant Field Values

Constructor Detail

DenyOverridesPolicyAlg

public DenyOverridesPolicyAlg()

Standard constructor.

DenyOverridesPolicyAlg

protected DenyOverridesPolicyAlg(URI identifier)

Protected constructor used by the ordered version of this algorithm.

Parameters:

identifier - the algorithm's identifier

Method Detail

combine

public AbstractResult combine(EvaluationCtx context,
                              List parameters,
                              List policyElements)

Applies the combining rule to the set of policies based on the evaluation context.

Specified by:

combine in class PolicyCombiningAlgorithm

Parameters:

context - the context from the request

parameters - a (possibly empty) non-null List of CombinerParameters

policyElements - the policies to combine

Returns:

the result of running the combining algorithm