Mercurial > dive4elements > framework
view artifact-database/src/main/java/de/intevation/artifactdatabase/transition/Transition.java @ 265:d52947ce8629
XMLUtils.xpathString() returns empty string not null.
artifacts/trunk@1976 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Mon, 23 May 2011 09:56:15 +0000 |
parents | 8c2b6cdf22ad |
children |
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package de.intevation.artifactdatabase.transition; import org.w3c.dom.Node; import de.intevation.artifacts.Artifact; import de.intevation.artifactdatabase.state.State; /** * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public interface Transition { /** * Initializes the transition. * * @param config The configuration node for the transition. */ public void init(Node config); /** * Return the ID of the start State. */ public String getFrom(); /** * Return the ID of the target State. */ public String getTo(); /** * Set the ID of the current State. * * @param from The ID of the current state. */ public void setFrom(String from); /** * Set the ID of the target State. * * @param to The ID of the target state. */ public void setTo(String to); /** * Determines if its valid to step from state <i>a</i> of an artifact * <i>artifact</i> to state <i>b</i>. * * @param artifact The owner artifact of state a and b. * @param a The current state. * @param b The target state. * * @return true, if it is valid to step from a to b, otherwise false. */ public boolean isValid(Artifact artifact, State a, State b); } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :