/*
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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.api;
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import java.util.List;
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import org.jbpm.api.job.Job;
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/** query for jBPM related messages and timers.
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*
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* <p>Both {@link org.jbpm.api.job.Message messages} and
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* {@link org.jbpm.api.job.Timer timers} are
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* {@link org.jbpm.api.job.Job jobs}.</p>
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*
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* @author Tom Baeyens
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*/
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public interface JobQuery {
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/** duedate property to be used as property in {@link #orderAsc(String)} and {@link #orderDesc(String)} */
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public static final String PROPERTY_DUEDATE = "duedate";
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/** state property to be used as property in {@link #orderAsc(String)} and {@link #orderDesc(String)} */
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public static final String PROPERTY_STATE = "state";
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/** only select messages */
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JobQuery messages();
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/** only select timers */
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JobQuery timers();
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/** only select jobs related to the given process instance */
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JobQuery processInstanceId(String processInstanceId);
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/** only select jobs that were rolled back due to an exception */
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JobQuery exception(boolean hasException);
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/** order ascending for property {@link #PROPERTY_STATE}
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* or {@link #PROPERTY_DUEDATE} */
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JobQuery orderAsc(String property);
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/** order descending for property {@link #PROPERTY_STATE}
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* or {@link #PROPERTY_DUEDATE} */
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JobQuery orderDesc(String property);
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/** only select a specific page */
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JobQuery page(int firstResult, int maxResults);
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/** execute the query and get the result list */
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List<Job> list();
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/** execute the query and get the unique result */
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Job uniqueResult();
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/** execute a count(*) query and returns number of results */
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long count();
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}
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