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1
29
30 package com.caucho.ejb.cfg;
31
32 import com.caucho.bytecode.JClass;
33 import com.caucho.bytecode.JMethod;
34 import com.caucho.config.ConfigException;
35 import com.caucho.log.Log;
36 import com.caucho.util.L10N;
37
38 import java.util.logging.Logger  ;
39
40
43 public class EjbCmpView extends EjbEntityView {
44 private static final Logger log = Log.open(EjbCmpView.class);
45 private static final L10N L = new L10N(EjbCmpView.class);
46
47 private EjbEntityBean _entityBean;
48
49
52 public EjbCmpView(EjbEntityBean bean, JClass apiClass, String prefix)
53 throws ConfigException
54 {
55 super(bean, apiClass, prefix);
56
57 _entityBean = bean;
58 }
59
60
63 protected EjbMethod introspectEJBMethod(JMethod method)
64 throws ConfigException
65 {
66 String methodName = method.getName();
67 JClass []paramTypes = method.getParameterTypes();
68
69 if (methodName.startsWith("ejbSelect") && method.isAbstract()) {
70 _entityBean.addStubMethod(method);
71
72 return null;
73 }
74
75 return super.introspectEJBMethod(method);
76 }
77
78
81 protected EjbMethod createBusinessMethod(JMethod apiMethod,
82 JMethod implMethod)
83 throws ConfigException
84 {
85 String methodName = implMethod.getName();
86 JClass []paramTypes = implMethod.getParameterTypes();
87
88 if (methodName.startsWith("get") &&
89 methodName.length() > 3 &&
90 paramTypes.length == 0) {
91 String fieldName = toFieldName(methodName.substring(3));
92
93 CmpField field = _entityBean.getCmpField(fieldName);
94
95 if (field != null) {
96 validateCmpMethod(implMethod);
97
98 if (isLocal() && apiMethod.getExceptionTypes().length != 0) {
99 throw new ConfigException(L.l("{0}: '{1}' must not throw {2}. Container managed fields and relations must not throw exceptions.",
100 apiMethod.getDeclaringClass().getName(),
101 EjbBean.getFullMethodName(apiMethod),
102 apiMethod.getExceptionTypes()[0].getName()));
103 }
104
105 if (field.isId())
106 return new CmpIdGetter(this, apiMethod, implMethod);
107 else
108 return new CmpGetter(this, apiMethod, implMethod);
109 }
110
111 CmrRelation rel = _entityBean.getRelation(fieldName);
112
113 if (rel != null) {
114 validateCmpMethod(implMethod);
115
116 rel.setHasGetter(true);
117
118 return rel.createGetter(this, apiMethod, implMethod);
119 }
120
121 if (! implMethod.isAbstract()) {
122 validateCmpMethod(implMethod);
123
124
126 return new EjbMethod(this, apiMethod, implMethod);
127 }
128 }
129 else if (methodName.startsWith("get") &&
130 methodName.length() > 3 &&
131 paramTypes.length == 1) {
132 String fieldName = toFieldName(methodName.substring(3));
133
134 CmrRelation rel = _entityBean.getRelation(fieldName);
135
136 if (rel instanceof CmrMap) {
137 CmrMap map = (CmrMap) rel;
138
139 validateCmpMethod(implMethod);
140
141 rel.setHasGetter(true);
142
143 return new CmpGetter(this, apiMethod, implMethod);
145 }
146 }
147 else if (methodName.startsWith("set") &&
148 methodName.length() > 3 &&
149 paramTypes.length == 1) {
150 String fieldName = toFieldName(methodName.substring(3));
151
152 CmpField field = _entityBean.getCmpField(fieldName);
153
154 if (field != null) {
155 validateCmpMethod(implMethod);
156
157 if (isLocal() && apiMethod.getExceptionTypes().length != 0) {
158 throw new ConfigException(L.l("{0}: '{1}' must not throw {2}. Container managed fields and relations must not throw exceptions.",
159 _entityBean.getEJBClass().getName(),
160 EjbBean.getFullMethodName(apiMethod),
161 apiMethod.getExceptionTypes()[0].getName()));
162 }
163
164 return new EjbMethod(this, apiMethod, implMethod);
165 }
166
167 CmrRelation rel = _entityBean.getRelation(fieldName);
168
169 if (rel instanceof CmrOneToMany) {
170 validateCmpMethod(implMethod);
171
172 return new CmpCollectionSetter(this, apiMethod, implMethod);
173 }
175 else if (rel instanceof CmrManyToOne) {
176 validateCmpMethod(implMethod);
177
178 CmrManyToOne manyToOne = (CmrManyToOne) rel;
179
180 return new EjbManyToOneSetMethod(this, apiMethod, implMethod, manyToOne);
181 }
182 else if (rel instanceof CmrManyToMany) {
183 validateCmpMethod(implMethod);
184
185 return new CmpCollectionSetter(this, apiMethod, implMethod);
186 }
188
189 if (! implMethod.isAbstract()) {
190 validateCmpMethod(implMethod);
191
192 return new EjbMethod(this, apiMethod, implMethod);
193 }
194 else
195 throw new ConfigException(L.l("{0}: abstract setter {1}.",
196 implMethod.getDeclaringClass().getName(),
197 getFullMethodName(implMethod)));
198 }
199
200
201 return super.createBusinessMethod(apiMethod, implMethod);
202 }
203
204 protected String toFieldName(String name)
205 {
206 if (name.length() == 0)
207 return "";
208 else if (name.length() == 1)
209 return String.valueOf(Character.toLowerCase(name.charAt(0)));
210 else if (Character.isUpperCase(name.charAt(1)))
211 return name;
212 else
213 return Character.toLowerCase(name.charAt(0)) + name.substring(1);
214 }
215
216
219 protected void validateCmpMethod(JMethod implMethod)
220 throws ConfigException
221 {
222 if (! implMethod.isPublic()) {
223 throw error(L.l("{0}: `{1}' must be public. CMP method implementations must be public.",
224 implMethod.getDeclaringClass().getName(),
225 getFullMethodName(implMethod)));
226 }
227
228 if (implMethod.isStatic()) {
229 throw error(L.l("{0}: `{1}' must not be static. CMP method implementations must not be static.",
230 implMethod.getDeclaringClass().getName(),
231 getFullMethodName(implMethod)));
232 }
233 }
234 }
235 |
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