view gnv-artifacts/src/main/java/de/intevation/gnv/transition/TransitionBase.java @ 773:5fb1ea68e19c

Avoid danger to get a NullPointerException if no time to live is served by CallContext. gnv-artifacts/trunk@832 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 26 Mar 2010 09:55:28 +0000
parents a887074460b6
children 9a828e5a2390
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line source
/**
 *
 */
package de.intevation.gnv.transition;

import org.w3c.dom.Node;

import de.intevation.artifactdatabase.Config;

/**
 * @author Tim Englich <tim.englich@intevation.de>
 *
 */
public abstract class TransitionBase implements Transition {

    /**
     * The UID of this Class.
     */
    private static final long serialVersionUID = -8542097519466477977L;

    private String from = null;
    
    private String to = null;
    /**
     * Constructor
     */
    public TransitionBase() {
    }

    /**
     * @see de.intevation.gnv.transition.Transition#getFrom()
     */
    public String getFrom() {
        return this.from;
    }

    /**
     * @see de.intevation.gnv.transition.Transition#getTo()
     */
    public String getTo() {
        return this.to;
    }
    
    /**
     * @see de.intevation.gnv.transition.Transition#setup(org.w3c.dom.Node)
     */
    public void setup(Node configuration) {
      this.from = Config.getStringXPath(configuration,"from/@state");
      this.to = Config.getStringXPath(configuration,"to/@state");
    }

}

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