ingo@104: /*
ingo@104:  * Copyright (c) 2011 by Intevation GmbH
ingo@104:  *
ingo@104:  * This program is free software under the LGPL (>=v2.1)
ingo@104:  * Read the file LGPL.txt coming with the software for details
ingo@104:  * or visit http://www.gnu.org/licenses/ if it does not exist.
ingo@104:  */
ingo@104: package de.intevation.artifactdatabase.state;
ingo@104: 
ingo@104: import java.io.Serializable;
ingo@210: import java.util.List;
ingo@104: import java.util.Map;
ingo@104: 
ingo@104: import org.w3c.dom.Document;
ingo@205: import org.w3c.dom.Element;
ingo@104: import org.w3c.dom.Node;
ingo@104: 
ingo@244: import de.intevation.artifacts.Artifact;
ingo@104: import de.intevation.artifacts.CallContext;
ingo@363: import de.intevation.artifacts.CallMeta;
ingo@104: 
ingo@104: import de.intevation.artifactdatabase.data.StateData;
ingo@104: 
ingo@104: 
ingo@104: /**
ingo@104:  * This interface describes the basic methods a concrete state class needs to
ingo@104:  * implement.
ingo@104:  *
ingo@104:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@104:  */
ingo@104: public interface State extends Serializable {
ingo@104: 
ingo@104:     /**
ingo@104:      * Return the id of the state.
ingo@104:      *
ingo@104:      * @return the id.
ingo@104:      */
ingo@104:     public String getID();
ingo@104: 
ingo@104: 
ingo@104:     /**
ingo@104:      * Return the description of the state.
ingo@104:      *
ingo@104:      * @return the description of the state.
ingo@104:      */
ingo@104:     public String getDescription();
ingo@104: 
ingo@104: 
ingo@104:     /**
ingo@104:      * Returns the data provided by this state.
ingo@104:      *
ingo@104:      * @return the data stored in this state.
ingo@104:      */
ingo@104:     public Map<String, StateData> getData();
ingo@104: 
ingo@104: 
ingo@104:     /**
ingo@256:      * Returns a single desired StateData object based on its name.
ingo@256:      *
ingo@256:      * @param name The name of the desired StateData object.
ingo@256:      *
ingo@256:      * @return the desired StateData object.
ingo@256:      */
ingo@256:     public StateData getData(String name);
ingo@256: 
ingo@256: 
ingo@256:     /**
ingo@110:      * This method should be used to add a new {@link StateData} object to the
ingo@110:      * data pool of the state.
ingo@110:      *
ingo@110:      * @param name The name of the data object.
ingo@110:      * @param data The data object.
ingo@110:      */
ingo@110:     public void addData(String name, StateData data);
ingo@110: 
ingo@110: 
ingo@110:     /**
ingo@210:      * Returns the list of possible outputs of this state. The list is empty
ingo@210:      * if no output is available for this state.
ingo@210:      *
ingo@210:      * @return a list of possible outputs of this state.
ingo@210:      */
ingo@210:     public List<Output> getOutputs();
ingo@210: 
ingo@210: 
ingo@210:     /**
ingo@104:      * Initialize the state based on the state node in the configuration.
ingo@104:      *
ingo@104:      * @param config The state configuration node.
ingo@104:      */
ingo@104:     public void setup(Node config);
ingo@104: 
ingo@104: 
ingo@104:     /**
ingo@363:      * Initializes the internal state of this State based on an other State.
ingo@363:      *
ingo@363:      * @param orig The owner Artifact or the original State.
ingo@365:      * @param owner The owner Artifact of this State.
ingo@363:      * @param context The context object.
ingo@363:      * @param callMeta The CallMeta of the current call.
ingo@363:      */
ingo@365:     public void initialize(
ingo@365:         Artifact orig,
ingo@365:         Artifact owner,
ingo@365:         Object   context,
ingo@365:         CallMeta callMeta);
ingo@363: 
ingo@363: 
ingo@363:     /**
ingo@104:      * This method is called when an artifacts retrieves a describe request. It
ingo@104:      * creates the user interface description of the current state.
ingo@104:      *
ingo@244:      * @param artifact A reference to the artifact this state belongs to.
ingo@104:      * @param document Describe doucment.
ingo@104:      * @param rootNode Parent node for all new elements.
ingo@104:      * @param context The CallContext.
ingo@104:      * @param uuid The uuid of an artifact.
ingo@104:      */
ingo@205:     public Element describe(
ingo@244:         Artifact    artifact,
ingo@104:         Document    document,
ingo@104:         Node        rootNode,
ingo@104:         CallContext context,
ingo@104:         String      uuid
ingo@104:     );
ingo@327: 
ingo@327: 
ingo@327:     /**
ingo@327:      * This method should be called by an Artifact that removes this State
ingo@327:      * (current State and previous States). E.g. this might be interesting to
ingo@327:      * remove generated files or stuff like that.
ingo@327:      *
ingo@327:      * @param artifact A parent Artifact.
ingo@327:      * @param context The CallContext.
ingo@327:      */
ingo@327:     public void endOfLife(Artifact artifact, Object context);
ingo@104: }
ingo@104: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :