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/*
* Fabric3
* Copyright (c) 2009-2011 Metaform Systems
*
* Fabric3 is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version, with the
* following exception:
*
* Linking this software statically or dynamically with other
* modules is making a combined work based on this software.
* Thus, the terms and conditions of the GNU General Public
* License cover the whole combination.
*
* As a special exception, the copyright holders of this software
* give you permission to link this software with independent
* modules to produce an executable, regardless of the license
* terms of these independent modules, and to copy and distribute
* the resulting executable under terms of your choice, provided
* that you also meet, for each linked independent module, the
* terms and conditions of the license of that module. An
* independent module is a module which is not derived from or
* based on this software. If you modify this software, you may
* extend this exception to your version of the software, but
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* delete this exception statement from your version.
*
* Fabric3 is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the
* GNU General Public License along with Fabric3.
* If not, see .
*/
package org.fabric3.spi.generator.policy;

import java.util.List;
import java.util.Set;

import org.fabric3.model.type.definitions.PolicySet;
import org.fabric3.spi.model.instance.LogicalComponent;


/**
 * Applies policy using external policy attachment.
 *
 * @version $Rev: 9866 $ $Date: 2011-01-18 11:05:55 +0000 (Tue, 18 Jan 2011) $
 */
public interface PolicyAttacher {

    /**
     * Attaches all active PolicySets (i.e. those that use external attachment) to the component hierarchy.
     *
     * @param component   the top-most component to evaluate external attachments against
     * @param incremental true if the attachment is performed as part of an incremental deployment
     * @throws PolicyResolutionException if an error occurs evaluating the policies
     */
    void attachPolicies(LogicalComponent component, boolean incremental) throws PolicyResolutionException;

    /**
     * Attaches PolicySets (i.e. those that use external attachment) to the component hierarchy.
     *
     * @param policySets  the policy sets to attach
     * @param component   the top-most component to evaluate external attachments against
     * @param incremental true if the attachment is performed as part of an incremental deployment
     * @throws PolicyResolutionException if an error occurs evaluating the policies
     */
    void attachPolicies(Set policySets, LogicalComponent component, boolean incremental) throws PolicyResolutionException;

    /**
     * Detaches PolicySets (i.e. those that use external attachment) to the component hierarchy.
     *
     * @param policySets the policy sets to detach
     * @param component  the top-most component to evaluate external attachments against
     * @throws PolicyResolutionException if an error occurs evaluating the policies
     */
    void detachPolicies(Set policySets, LogicalComponent component) throws PolicyResolutionException;

}