view artifact-database/src/main/java/de/intevation/artifactdatabase/state/Facet.java @ 347:16ab243507e0

Let StateEngine compute compatibility matrix based on a list of states. artifacts/trunk@3108 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Fri, 28 Oct 2011 10:08:35 +0000
parents 93a774fe2bb4
children eb1136134d09
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package de.intevation.artifactdatabase.state;

import java.io.Serializable;

import org.w3c.dom.Document;
import org.w3c.dom.Node;

import de.intevation.artifacts.Artifact;
import de.intevation.artifacts.CallContext;


/**
 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
 */
public interface Facet extends Serializable {

    /**
     * Returns the index of this facet.
     *
     * @return the index of this facet.
     */
    int getIndex();

    /**
     * Returns the name of this facet.
     *
     * @return the name of this facet.
     */
    String getName();


    /**
     * Returns the description of this facet.
     *
     * @return the description of this facet.
     */
    String getDescription();


    /**
     * Returns the data this facet requires.
     *
     * @param artifact The owner artifact.
     * @param context The CallContext.
     *
     * @return the data.
     */
    Object getData(Artifact artifact, CallContext context);


    /**
     * Write the internal representation of a facet to a node.
     *
     * @param doc A Document.
     *
     * @return the representation as Node.
     */
    Node toXML(Document doc);

    Facet deepCopy();
}
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