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1 package org.jicengine.operation;
2
3
13
14 public class PushVariableOperation implements Operation {
15
16 String  localContextName;
17 String parentContextName;
18
19 public PushVariableOperation(String localContextName, String parentContextName)
20 {
21 this.parentContextName = parentContextName;
22 this.localContextName = localContextName;
23 }
24
25 public boolean needsParameters()
26 {
27 return true;
28 }
29
30 public boolean needsParameter(String name)
31 {
32 return (this.localContextName.equals(name));
33 }
34
35 public Object execute(Context context) throws OperationException
36 {
37 Context parentContext;
38 try {
39 parentContext = ((LocalContext)context).getParent();
40 } catch (ClassCastException e){
41 throw new RuntimeException ("Expected " + LocalContext.class.getName() + ", was " + context.getClass().getName());
42 }
43
44 try {
45 Object value = context.getObject(this.localContextName);
46
47 parentContext.addObject(this.parentContextName, value);
48 return null;
49 } catch (ObjectNotFoundException e){
50 throw new OperationException(e.getMessage(), e);
51 } catch (DuplicateNameException e2){
52 throw new OperationException(e2.getMessage(), e2);
53 }
54 }
55 }
56 |
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