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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2012 Oracle and/or its affiliates. All rights reserved.
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 * and Distribution License("CDDL") (collectively, the "License").  You
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package org.glassfish.security.services.api.authorization;


/**
 * The AzResult class represents the result of an authorization decision.  The result includes three distinct results:
 * A result status, which indicates whether the call was successful or not, and may indicate a reason for a failed call;
 * an authorization decision, which is valid only if the status is "OK", and obligations, which represent actions the
 * calling code must take if it proceeds to access the resource in question.  Obligations are expressed as attributes;
 * the meaning of any specific obligation is established by an out-of-band agreement between the PDP and the PEP.
 */
public interface AzResult {
	
	/**
	 * The possible authorization decision values.  These carry the same meaning as the corresponding
	 * decision values defined by XACML 2.0 and later.
	 */
	public enum Decision { PERMIT, DENY, INDETERMINATE, NOT_APPLICABLE };
	/**
	 * The possible authorization status values.  These carry the same meaning as the corresponding
	 * status values defined by XACML 2.0 and later.
	 */
	public enum Status { OK, MISSING_ATTRIBUTE, PROCESSING_ERROR, SYNTAX_ERROR };
	
	/**
	 * Get the authorization decision value for this AzResult.
	 * 
	 * @return The Decision value.
	 */
	public Decision getDecision();
	
	/**
	 * Get the authorization status value for this AzResult.
	 * 
	 * @return The Status value.
	 */
	public Status getStatus();
	
	/**
	 * Return the obligations that apply to this result.
	 * 
	 * @return The AzObligations.
	 */
	public AzObligations getObligations();

}