001    /*
002      GRANITE DATA SERVICES
003      Copyright (C) 2011 GRANITE DATA SERVICES S.A.S.
004    
005      This file is part of Granite Data Services.
006    
007      Granite Data Services is free software; you can redistribute it and/or modify
008      it under the terms of the GNU Library General Public License as published by
009      the Free Software Foundation; either version 2 of the License, or (at your
010      option) any later version.
011    
012      Granite Data Services is distributed in the hope that it will be useful, but
013      WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014      FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
015      for more details.
016    
017      You should have received a copy of the GNU Library General Public License
018      along with this library; if not, see <http://www.gnu.org/licenses/>.
019    */
020    
021    package org.granite.tide.seam;
022    
023    import org.granite.tide.data.DataContext;
024    import org.granite.tide.data.DataEnabled.PublishMode;
025    import org.jboss.seam.ScopeType;
026    import org.jboss.seam.annotations.Name;
027    import org.jboss.seam.annotations.Observer;
028    import org.jboss.seam.annotations.Scope;
029    
030    
031    /**
032     * Seam event listener to handle publishing of data changes instead of relying on the default behaviour
033     * This can be used outside of a HTTP Granite context and inside the security/transaction context
034     * @author William DRAI
035     *
036     */
037    @Name("org.granite.tide.seam.dataPublisher")
038    @Scope(ScopeType.EVENT)
039    public class TideDataPublishingOnSuccessHandler {
040            
041        @Observer("org.granite.tide.seam.data.transactionSuccess")
042        public void doPublish(boolean initContext) {
043            DataContext.publish(PublishMode.ON_COMMIT);
044            if (initContext)
045                    DataContext.remove();
046        }
047            
048        @Observer("org.granite.tide.seam.data.transactionCompletion")
049        public void doFinish(boolean initContext) {
050            if (initContext)
051                    DataContext.remove();
052        }
053    }