Examples of org.apache.commons.scxml.model.TransitionTarget

org.apache.commons.scxml.model.TransitionTarget
An abstract base class for elements in SCXML that can serve as a <target> for a <transition>, such as State or Parallel.

         */
        public final void begin(final String namespace, final String name,
                final Attributes attributes) {
            Finalize finalize = (Finalize) getDigester().peek();
            // state/invoke/finalize --> peek(2)
            TransitionTarget tt = (TransitionTarget) getDigester().peek(2);
            finalize.setParent(tt);
        }

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         */
        public final void begin(final String namespace, final String name,
                final Attributes attributes) {
            Finalize finalize = (Finalize) getDigester().peek();
            // state/invoke/finalize --> peek(2)
            TransitionTarget tt = (TransitionTarget) getDigester().peek(2);
            finalize.setParent(tt);
        }

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        public final void end(final String namespace, final String name) {
            if (scxml == null) {
                scxml = (SCXML) getDigester()
                        .peek(getDigester().getCount() - 1);
            }
            TransitionTarget tt = (TransitionTarget) getDigester().peek();
            scxml.addTarget(tt);
        }

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                        s.addHistory(h);
                        parent.addTarget(h);
                    }
                    Iterator childIter = include.getChildren().values().iterator();
                    while (childIter.hasNext()) {
                        TransitionTarget tt = (TransitionTarget) childIter.next();
                        s.addChild(tt);
                        parent.addTarget(tt);
                        addTargets(parent, tt);
                    }
                    s.setInvoke(include.getInvoke());

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                parent.addTarget(h);
            }
            if (tt instanceof State) {
                Iterator childIter = ((State) tt).getChildren().values().iterator();
                while (childIter.hasNext()) {
                    TransitionTarget child = (TransitionTarget) childIter.next();
                    parent.addTarget(child);
                    addTargets(parent, child);
                }
            } else if (tt instanceof Parallel) {
                Iterator childIter = ((Parallel) tt).getChildren().iterator();
                while (childIter.hasNext()) {
                    TransitionTarget child = (TransitionTarget) childIter.next();
                    parent.addTarget(child);
                    addTargets(parent, child);
                }
            }
        }

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        // Add <exit> custom action rule in Commons SCXML namespace
        scxmlRules.setNamespaceURI(NAMESPACE_COMMONS_SCXML);
        scxmlRules.add(xp + XPF_EXT, new Rule() {
            public void end(final String namespace, final String name) {
                Transition t = (Transition) getDigester().peek(1);
                TransitionTarget tt = (TransitionTarget) getDigester().
                    peek(2);
                if (tt instanceof Initial) {
                    org.apache.commons.logging.Log log = LogFactory.
                        getLog(SCXMLParser.class);
                    log.warn("Ignored <exit> action in <initial>");

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                scInstance.getEvaluator(), log);
        }
        // all states and parallels, only states have variable contexts
        for (Iterator i = stateMachine.getTargets().values().iterator();
                i.hasNext();) {
            TransitionTarget tt = (TransitionTarget) i.next();
            if (tt instanceof State) {
                Context context = scInstance.lookupContext(tt);
                if (context != null) {
                    context.reset();
                    Datamodel dm = tt.getDatamodel();
                    if (dm != null) {
                        SCXMLHelper.cloneDatamodel(dm, context,
                            scInstance.getEvaluator(), log);
                    }
                }

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     * @return Whether this State belongs to this Set
     */
    public static boolean isMember(final Set allStates,
            final String state) {
        for (Iterator i = allStates.iterator(); i.hasNext();) {
            TransitionTarget tt = (TransitionTarget) i.next();
            if (state.equals(tt.getId())) {
                return true;
            }
        }
        return false;
    }

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     *            TransitionTarget context - a potential ancestor
     * @return true iff tt is a descendant of ctx, false otherwise
     */
    public static boolean isDescendant(final TransitionTarget tt,
            final TransitionTarget ctx) {
        TransitionTarget parent = tt.getParent();
        while (parent != null) {
            if (parent == ctx) {
                return true;
            }
            parent = parent.getParent();
        }
        return false;
    }

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     */
    public static Set getAncestorClosure(final Set states,
            final Set upperBounds) {
        Set closure = new HashSet(states.size() * 2);
        for (Iterator i = states.iterator(); i.hasNext();) {
            TransitionTarget tt = (TransitionTarget) i.next();
            while (tt != null) {
                if (!closure.add(tt)) {
                    //tt is already a part of the closure
                    break;
                }
                if (upperBounds != null && upperBounds.contains(tt)) {
                    break;
                }
                tt = tt.getParent();
            }
        }
        return closure;
    }

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