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1
29
30 package com.caucho.ejb.cfg;
31
32 import com.caucho.amber.field.AmberField;
33 import com.caucho.amber.type.EntityType;
34 import com.caucho.bytecode.JClass;
35 import com.caucho.bytecode.JMethod;
36 import com.caucho.config.ConfigException;
37 import com.caucho.ejb.gen.EntityBean;
38 import com.caucho.java.JavaWriter;
39 import com.caucho.util.L10N;
40
41 import javax.ejb.EJBLocalObject  ;
42 import java.io.IOException ;
43 import java.util.Collection ;
44 import java.util.Map ;
45
46
49 public class CmrRelation extends CmpProperty {
50 private static final L10N L = new L10N(CmrRelation.class);
51
52 private String _relationName;
53
54 private String _fieldName;
55 private boolean _hasGetter;
56
57 private CmrRelation _targetRelation;
58
59
62 public CmrRelation(EjbEntityBean entityBean)
63 throws ConfigException
64 {
65 super(entityBean);
66 }
67
68
71 public CmrRelation(EjbEntityBean entityBean, String fieldName)
72 throws ConfigException
73 {
74 super(entityBean);
75
76 setFieldName(fieldName);
77
78 JMethod getter = getGetter();
79
80 if (! getter.isAbstract() && ! entityBean.isAllowPOJO())
81 throw new ConfigException(L.l("{0}: '{1}' must have an abstract getter method. cmr-relations must have abstract getter methods returning a local interface.",
82 entityBean.getEJBClass().getName(),
83 getter.getFullName()));
84
85 JClass retType = getter.getReturnType();
86
87 if (! retType.isAssignableTo(EJBLocalObject .class) &&
88 ! retType.isAssignableTo(Collection .class) &&
89 ! retType.isAssignableTo(Map .class)) {
90 throw new ConfigException(L.l("{0}: '{1}' must return an EJBLocalObject or a Collection. cmr-relations must have abstract getter methods returning a local interface.",
91 entityBean.getEJBClass().getName(),
92 getter.getFullName()));
93 }
94
95 JMethod setter = getSetter();
96
97 if (setter == null)
98 return;
99
100 JClass []paramTypes = setter.getParameterTypes();
101
102 if (! retType.equals(paramTypes[0]))
103 throw new ConfigException(L.l("{0}: '{1}' must return an '{2}'. Persistent setters must match the getter types .",
104 entityBean.getEJBClass().getName(),
105 setter.getFullName(),
106 retType.getName()));
107 }
108
109
112 public String getRelationName()
113 {
114 return _relationName;
115 }
116
117
120 public void setRelationName(String name)
121 {
122 _relationName = name;
123 }
124
125
128 public EjbEntityBean getTargetBean()
129 {
130 return null;
131 }
132
133
136 public JClass getTargetType()
137 {
138 throw new UnsupportedOperationException (getClass().getName());
139 }
140
141
144 public void setTarget(CmrRelation target)
145 {
146 throw new UnsupportedOperationException (getClass().getName());
147 }
148
149
152 public boolean isCollection()
153 {
154 return false;
155 }
156
157
160 public void setTargetRelation(CmrRelation target)
161 {
162 _targetRelation = target;
163 }
164
165
168 public CmrRelation getTargetRelation()
169 {
170 return _targetRelation;
171 }
172
173
176 public void linkAmber()
177 throws ConfigException
178 {
179 }
180
181
184 public void assemble(EntityBean bean)
185 {
186
187 }
188
189
192 public void setHasGetter(boolean hasGetter)
193 {
194 _hasGetter = true;
195 }
196
197
200 public boolean getHasGetter()
201 {
202 return _hasGetter;
203 }
204
205
208 public EjbMethod createGetter(EjbView view,
209 JMethod apiMethod,
210 JMethod implMethod)
211 throws ConfigException
212 {
213 return new CmpGetter(view, apiMethod, implMethod);
214 }
215
216
219 public AmberField assembleAmber(EntityType type)
220 throws ConfigException
221 {
222 throw new UnsupportedOperationException (getClass().getName());
223 }
224
225
228 public void generateAfterCommit(JavaWriter out)
229 throws IOException
230 {
231 }
232
233
236 public void generateDestroy(JavaWriter out)
237 throws IOException
238 {
239 }
240
241 public String toString()
242 {
243 return "CmrRelation[" + getName() + "]";
244 }
245 }
246 |
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