/*
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* JBoss, Home of Professional Open Source
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* Copyright 2005, JBoss Inc., and individual contributors as indicated
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* by the @authors tag. See the copyright.txt in the distribution for a
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* full listing of individual contributors.
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*
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* This is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this software; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
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*/
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package org.jbpm.pvm.internal.model;
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import java.util.List;
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import java.util.Map;
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/** activity container base class for {@link OpenProcessDefinition} and {@link Activity}.
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*
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* @author Tom Baeyens
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*/
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public interface CompositeElement extends ObservableElement {
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/** indicates if this processDefinition has activities. */
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boolean hasActivities();
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/** the list of direct composite activities. Recursively contained
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* activities are not included in the list.
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* Beware: the actual member is returned. No copy is made. */
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List<? extends Activity> getActivities();
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/** indicates if an activity with the given name exists directly in
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* this element. Only the direct contained activities are
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* searched. No recursive search is made. */
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boolean hasActivity(String activityName);
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/** the first composite activity with the given name or null of no
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* such activity exists. Only the direct contained activities are
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* searched. No recursive search is made. */
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Activity getActivity(String activityName);
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/** searches for the given activity in this element recursively,
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* including this activity and all child activities. The search
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* is done depth-first. A null value for activityName matches a activity
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* without a name. */
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Activity findActivity(String activityName);
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/** the composite activities, keyed by activity name. If an activity
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* with the same name occurs mutltiple times, the first in the list
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* is included in the map. Activities with a null value for their name
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* are not included in the map.
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* Beware: the actual member is returned. No copy is made. In fact, the
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* returned map is maintained as a cache. So updates to the map will
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* influence subsequent retrievals of activities by name.*/
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Map<String, Activity> getActivitiesMap();
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}
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