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1   /*
2    * Copyright (c) 2005, The K-Wf Grid Consortium
3    * Fraunhofer Institute for Computer Architecture and Software Technology
4    * See http://www.kwfgrid.eu and http://www.first.fraunhofer.de for more details.
5    */
6   package net.kwfgrid.gworkflowdl.protocol.calls;
7   
8   import net.kwfgrid.gworkflowdl.protocol.*;
9   import net.kwfgrid.gworkflowdl.protocol.structure.*;
10  
11  import java.io.IOException;
12  
13  import org.xmlpull.v1.XmlSerializer;
14  
15  /***
16     Modification that sets the expression of an edge.
17   */
18  public class EdgeSetExpression extends AbstractMethodCall {
19      protected String _expression;
20      protected ProtocolEdge _edge;
21      
22      public EdgeSetExpression(ProtocolEdge edge, String expression) {
23  	super(edge.getRoot());
24  	_edge = edge;
25  	_expression = expression;
26      }
27      
28      public void marshal(IMethodCallMarshaller encoder, XmlSerializer serializer) throws IOException {
29  	encoder.marshalEdgeSetExpression(serializer, _edge, _expression);
30      }
31  
32      public Object execute() {
33  	_edge.__setExpression(_expression);
34  	setExecuted();
35  	return null;
36      }
37  }