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1 package org.jicengine.element.impl;
2
3 import org.jicengine.expression.SyntaxException;
4 import org.jicengine.operation.Operation;
5 import org.jicengine.operation.Context;
6 import org.jicengine.operation.OperationException;
7 import org.jicengine.element.*;
8
9 import java.util.Collection  ;
10 import java.util.Map ;
11
12
19
20 public class MapCompiler extends ElementCompiler {
21
22 public MapCompiler(String name, Location location)
23 {
24 super(name, location);
25 }
26
27 public void setInstanceClass(String className) throws ElementException
28 {
29 super.setInstanceClass(className);
30
31 if( !Map .class.isAssignableFrom(getElement().getInstanceClass())){
32 throw new ElementException("Class '" + getElement().getInstanceClass().getName() + "' is not a Map.",getElement().getName(), getLocation());
33 }
34 }
35
36 protected ActionElement handleLooseVariableElement(VariableElement child) throws org.jicengine.element.ElementException
37 {
38 final String childName = child.getName();
39
40 Operation putToMapOperation = new Operation(){
44 public boolean needsParameter(String name)
45 {
46 return (name.equals(Element.VARIABLE_NAME_PARENT_INSTANCE) || name.equals(Element.VARIABLE_NAME_ELEMENT_INSTANCE) );
47 }
48 public boolean needsParameters()
49 {
50 return true;
51 }
52
53 public Object execute(Context context) throws OperationException
54 {
55 Map parent = (Map ) org.jicengine.operation.VariableValueOperation.lookup(Element.VARIABLE_NAME_PARENT_INSTANCE, context);
56 Object elementInstance = org.jicengine.operation.VariableValueOperation.lookup(Element.VARIABLE_NAME_ELEMENT_INSTANCE, context);
57 return parent.put(childName, elementInstance);
58 }
59
60 };
61
62 return new WrapperActionElement(child,child.getLocation(),putToMapOperation);
63 }
64 }
65 |
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