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17 package javax.jdo;
18
19 import java.lang.reflect.InvocationHandler;
20 import java.lang.reflect.Method;
21 import java.lang.reflect.Proxy;
22
23 /**
24 *
25 * <p>
26 */
27 public class PMFProxy implements InvocationHandler {
28
29 private String connectionDriverName;
30
31 public static PersistenceManagerFactory newInstance() {
32 PersistenceManagerFactory pmf =
33 (PersistenceManagerFactory) Proxy.newProxyInstance(
34 PMFProxy.class.getClassLoader(),
35 new Class[]{PersistenceManagerFactory.class},
36 new PMFProxy());
37 return pmf;
38 }
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40
41
42
43 public Object invoke(Object proxy, Method m, Object[] args)
44 throws Exception {
45 Object result = null;
46
47 if (m.getName().equals("getConnectionDriverName")) {
48 result = connectionDriverName;
49 } else if (m.getName().equals("setConnectionDriverName")) {
50 connectionDriverName = (String) args[0];
51 } else {
52 throw new Exception(
53 "Unexpected invocation of method: " + m);
54 }
55 return result;
56 }
57 }
58