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: *
23: * Free Software Foundation, Inc.
24: * 59 Temple Place, Suite 330
25: * Boston, MA 02111-1307 USA
26: *
27: * @author Scott Ferguson
28: */
29:
30: package com.caucho.ejb.gen;
31:
32: import com.caucho.java.JavaWriter;
33: import com.caucho.util.L10N;
34:
35: import java.io.*;
36: import java.lang.reflect.*;
37: import java.util.*;
38: import javax.annotation.security.*;
39: import javax.ejb.*;
40: import javax.interceptor.*;
41:
42: /**
43: * Represents a filter for invoking a method
44: */
45: abstract public class AbstractCallChain implements EjbCallChain {
46: private EjbCallChain _next;
47:
48: AbstractCallChain(EjbCallChain next) {
49: if (next == null)
50: throw new NullPointerException();
51:
52: _next = next;
53: }
54:
55: /**
56: * Returns true if this filter will generate code.
57: */
58: abstract public boolean isEnhanced();
59:
60: /**
61: * Introspects the method for the default values
62: */
63: public void introspect(Method apiMethod, Method implMethod) {
64: }
65:
66: /**
67: * Generates the static class prologue
68: */
69: public void generatePrologue(JavaWriter out, HashMap map)
70: throws IOException {
71: _next.generatePrologue(out, map);
72: }
73:
74: /**
75: * Generates initialization in the constructor
76: */
77: public void generateConstructor(JavaWriter out, HashMap map)
78: throws IOException {
79: _next.generateConstructor(out, map);
80: }
81:
82: /**
83: * Generates the method interception code
84: */
85: public void generateCall(JavaWriter out) throws IOException {
86: _next.generateCall(out);
87: }
88: }
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