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1
22 package org.jboss.metadata.spi.retrieval;
23
24 import java.lang.annotation.Annotation  ;
25
26 import org.jboss.metadata.spi.MetaData;
27
28
34 public class MetaDataRetrievalToMetaDataBridge implements MetaData
35 {
36
37 private MetaDataRetrieval retrieval;
38
39 public MetaDataRetrievalToMetaDataBridge(MetaDataRetrieval retrieval)
40 {
41 if (retrieval == null)
42 throw new IllegalArgumentException ("Null retrieval");
43 this.retrieval = retrieval;
44 }
45
46 public long getValidTime()
47 {
48 ValidTime validTime = retrieval.getValidTime();
49 return validTime.getValidTime();
50 }
51
52 public <T extends Annotation > T getAnnotation(Class <T> annotationType)
53 {
54 if (annotationType == null)
55 throw new IllegalArgumentException ("Null annotationType");
56 AnnotationItem<T> item = retrieval.retrieveAnnotation(annotationType);
57 if (item == null)
58 return null;
59 return item.getValue();
60 }
61
62 public Annotation [] getAnnotations()
63 {
64 AnnotationsItem item = retrieval.retrieveAnnotations();
65 if (item == null)
66 return NO_ANNOTATIONS;
67 return item.getValue();
68 }
69
70 public Annotation [] getLocalAnnotations()
71 {
72 AnnotationsItem item = retrieval.retrieveLocalAnnotations();
73 if (item == null)
74 return NO_ANNOTATIONS;
75 return item.getValue();
76 }
77
78 public Object [] getMetaData()
79 {
80 MetaDatasItem item = retrieval.retrieveMetaData();
81 if (item == null)
82 return NO_METADATA;
83 return item.getValue();
84 }
85
86 public Object [] getLocalMetaData()
87 {
88 MetaDatasItem item = retrieval.retrieveLocalMetaData();
89 if (item == null)
90 return NO_METADATA;
91 return item.getValue();
92 }
93
94 public <T> T getMetaData(Class <T> type)
95 {
96 if (type == null)
97 throw new IllegalArgumentException ("Null type");
98 MetaDataItem<T> item = retrieval.retrieveMetaData(type);
99 if (item == null)
100 return null;
101 return item.getValue();
102 }
103
104 public <T> T getMetaData(String name, Class <T> type)
105 {
106 if (name == null)
107 throw new IllegalArgumentException ("Null name");
108 if (type == null)
109 throw new IllegalArgumentException ("Null type");
110 MetaDataItem item = retrieval.retrieveMetaData(name);
111 if (item == null)
112 return null;
113 return type.cast(item.getValue());
114 }
115
116 public Object getMetaData(String name)
117 {
118 if (name == null)
119 throw new IllegalArgumentException ("Null name");
120 MetaDataItem item = retrieval.retrieveMetaData(name);
121 if (item == null)
122 return null;
123 return item.getValue();
124 }
125
126 public boolean isAnnotationPresent(Class <? extends Annotation > annotationType)
127 {
128 return getAnnotation(annotationType) != null;
129 }
130
131 public boolean isMetaDataPresent(Class <?> type)
132 {
133 return getMetaData(type) != null;
134 }
135
136 public boolean isMetaDataPresent(String name, Class <?> type)
137 {
138 if (type == null)
139 throw new IllegalArgumentException ("Null type");
140 Object value = getMetaData(name);
141 if (value == null)
142 return false;
143 return type.isInstance(value);
144 }
145
146 public boolean isMetaDataPresent(String name)
147 {
148 return getMetaData(name) != null;
149 }
150
151
156 protected MetaDataRetrieval getMetaDataRetrieval()
157 {
158 return retrieval;
159 }
160 }
161 |
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