--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/transitions/DefaultTransition.java	Thu Apr 25 15:23:37 2013 +0200
@@ -0,0 +1,104 @@
+package org.dive4elements.river.artifacts.transitions;
+
+import org.w3c.dom.Node;
+
+import org.dive4elements.artifacts.Artifact;
+
+import org.dive4elements.artifactdatabase.state.State;
+import org.dive4elements.artifactdatabase.transition.Transition;
+
+
+/**
+ * The default implementation of a <code>Transition</code>.
+ *
+ * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
+ */
+public class DefaultTransition implements Transition {
+
+    /** The ID of the current state */
+    protected String from;
+
+    /** The ID of the target state */
+    protected String to;
+
+
+    /**
+     * The default constructor.
+     */
+    public DefaultTransition() {
+    }
+
+
+    /**
+     * The default constructor.
+     *
+     * @param from The current state.
+     * @param to The target state.
+     */
+    public DefaultTransition(String from, String to) {
+        this.from = from;
+        this.to   = to;
+    }
+
+
+    public void init(Node config) {
+        // nothing to do in the default transition
+    }
+
+
+    /**
+     * Returns the current state ID.
+     *
+     * @return the current state ID.
+     */
+    public String getFrom() {
+        return from;
+    }
+
+
+    /**
+     * Returns the target state ID.
+     *
+     * @return the target state ID.
+     */
+    public String getTo() {
+        return to;
+    }
+
+
+    /**
+     * Set the current state ID.
+     *
+     * @param from current state ID.
+     */
+    public void setFrom(String from) {
+        this.from = from;
+    }
+
+
+    /**
+     * Set the target state ID.
+     *
+     * @param to the target state ID.
+     */
+    public void setTo(String to) {
+        this.to = to;
+    }
+
+
+    /**
+     * Determines if its valid to step from state <i>a</i> of an artifact
+     * <i>artifact</i> to state <i>b</i>. This method always returns true - no
+     * validation takes place.
+     *
+     * @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) {
+        return true;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :