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52
53 package freemarker.ext.beans;
54
55 import java.util.List  ;
56 import java.util.Map ;
57
58 import freemarker.ext.util.ModelFactory;
59 import freemarker.ext.util.WrapperTemplateModel;
60 import freemarker.core.CollectionAndSequence;
61 import freemarker.template.ObjectWrapper;
62 import freemarker.template.SimpleSequence;
63 import freemarker.template.TemplateCollectionModel;
64 import freemarker.template.TemplateHashModelEx;
65 import freemarker.template.TemplateMethodModelEx;
66 import freemarker.template.TemplateModel;
67 import freemarker.template.TemplateModelException;
68 import freemarker.template.WrappingTemplateModel;
69
70
78 public class SimpleMapModel extends WrappingTemplateModel
79 implements TemplateHashModelEx, TemplateMethodModelEx, WrapperTemplateModel {
80 static final ModelFactory FACTORY =
81 new ModelFactory()
82 {
83 public TemplateModel create(Object object, ObjectWrapper wrapper)
84 {
85 return new SimpleMapModel((Map )object, (BeansWrapper)wrapper);
86 }
87 };
88
89 private final Map map;
90
91 public SimpleMapModel(Map map, BeansWrapper wrapper)
92 {
93 super(wrapper);
94 this.map = map;
95 }
96
97 public TemplateModel get(String key) throws TemplateModelException {
98 return wrap(map.get(key));
99 }
100
101 public Object exec(List args) throws TemplateModelException {
102 Object key = ((BeansWrapper)getObjectWrapper()).unwrap((TemplateModel)args.get(0));
103 return wrap(map.get(key));
104 }
105
106 public boolean isEmpty() {
107 return map.isEmpty();
108 }
109
110 public int size() {
111 return map.size();
112 }
113
114 public TemplateCollectionModel keys() {
115 return new CollectionAndSequence(new SimpleSequence(map.keySet(), getObjectWrapper()));
116 }
117
118 public TemplateCollectionModel values() {
119 return new CollectionAndSequence(new SimpleSequence(map.values(), getObjectWrapper()));
120 }
121
122 public Object getWrappedObject() {
123 return map;
124 }
125 }
126 |
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