01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * Resin Open Source is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License as published by
11: * the Free Software Foundation; either version 2 of the License, or
12: * (at your option) any later version.
13: *
14: * Resin Open Source is distributed in the hope that it will be useful,
15: * but WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17: * of NON-INFRINGEMENT. See the GNU General Public License for more
18: * details.
19: *
20: * You should have received a copy of the GNU General Public License
21: * along with Resin Open Source; if not, write to the
22: * Free SoftwareFoundation, Inc.
23: * 59 Temple Place, Suite 330
24: * Boston, MA 02111-1307 USA
25: *
26: * @author Scott Ferguson
27: */
28:
29: package com.caucho.ejb.protocol;
30:
31: import com.caucho.log.Log;
32:
33: import javax.ejb.EJBObject;
34: import javax.ejb.Handle;
35: import java.util.logging.Level;
36: import java.util.logging.Logger;
37:
38: /**
39: * Handle implementation for EJB Objects.
40: *
41: * <code><pre>
42: * String url = "http://localhost:8080/ejb/houses/Gryffindor";
43: * HandleImpl handle = new HandleImpl(url);
44: *
45: * test.RemoteBean bean = (test.RemoteBean) handle.getEJBObject();
46: * </pre></code>
47: */
48: abstract public class AbstractHandle implements Handle {
49: protected static final Logger log = Log.open(AbstractHandle.class);
50:
51: /**
52: * Returns the server id for the handle.
53: */
54: // public abstract String getServerId();
55: /**
56: * Returns the object id for the handle.
57: */
58: public abstract String getObjectId();
59:
60: /**
61: * Returns the remote API class.
62: */
63: public Class getType() {
64: try {
65: EJBObject obj = getEJBObject();
66:
67: return obj.getEJBHome().getEJBMetaData()
68: .getRemoteInterfaceClass();
69: } catch (Exception e) {
70: log.log(Level.WARNING, e.toString(), e);
71: return null;
72: }
73: }
74:
75: /**
76: * Returns the URL for a particular protocol.
77: */
78: abstract public String getURL(String protocol);
79: }
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