AttributeGen.java revision 608:7e06bf1dcb09 
1/*
2 * Copyright (c) 1999, 2002, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25/*
26 * COMPONENT_NAME: idl.toJava
27 *
28 * ORIGINS: 27
29 *
30 * Licensed Materials - Property of IBM
31 * 5639-D57 (C) COPYRIGHT International Business Machines Corp. 1997, 1999
32 * RMI-IIOP v1.0
33 *
34 */
35
36package com.sun.tools.corba.se.idl.toJavaPortable;
37
38// NOTES:
39
40import java.io.PrintWriter;
41import java.util.Enumeration;
42import java.util.Hashtable;
43
44import com.sun.tools.corba.se.idl.AttributeEntry;
45import com.sun.tools.corba.se.idl.InterfaceEntry;
46import com.sun.tools.corba.se.idl.MethodEntry;
47import com.sun.tools.corba.se.idl.ParameterEntry;
48import com.sun.tools.corba.se.idl.SymtabEntry;
49
50/**
51 *
52 **/
53public class AttributeGen extends MethodGen implements com.sun.tools.corba.se.idl.AttributeGen
54{
55  /**
56   * Public zero-argument constructor.
57   **/
58  public AttributeGen ()
59  {
60  } // ctor
61
62  /**
63   *
64   **/
65  private boolean unique (InterfaceEntry entry, String name)
66  {
67    // Compare the name to the methods of this interface
68    Enumeration methods = entry.methods ().elements ();
69    while (methods.hasMoreElements ())
70    {
71      SymtabEntry method = (SymtabEntry)methods.nextElement ();
72      if (name.equals (method.name ()))
73        return false;
74    }
75
76    // Recursively call unique on each derivedFrom interface
77    Enumeration derivedFrom = entry.derivedFrom ().elements ();
78    while (derivedFrom.hasMoreElements ())
79      if (!unique ((InterfaceEntry)derivedFrom.nextElement (), name))
80        return false;
81
82    // If the name isn't in any method, nor in any method of the
83    // derivedFrom interfaces, then the name is unique.
84    return true;
85  } // unique
86
87  /**
88   * Method generate() is not used in MethodGen.  They are replaced by the
89   * more granular interfaceMethod, stub, skeleton, dispatchSkeleton.
90   **/
91  public void generate (Hashtable symbolTable, AttributeEntry m, PrintWriter stream)
92  {
93  } // generate
94
95  /**
96   *
97   **/
98  protected void interfaceMethod (Hashtable symbolTable, MethodEntry m, PrintWriter stream)
99  {
100    AttributeEntry a = (AttributeEntry)m;
101
102    // Generate for the get method
103    super.interfaceMethod (symbolTable, a, stream);
104
105    // Generate for the set method if the attribute is not readonly
106    if (!a.readOnly ())
107    {
108      setupForSetMethod ();
109      super.interfaceMethod (symbolTable, a, stream);
110      clear ();
111    }
112  } // interfaceMethod
113
114  /**
115   *
116   **/
117  protected void stub (String className, boolean isAbstract, Hashtable symbolTable, MethodEntry m, PrintWriter stream, int index)
118  {
119    AttributeEntry a = (AttributeEntry)m;
120
121    // Generate for the get method
122    super.stub (className, isAbstract, symbolTable, a, stream, index);
123
124    // Generate for the set method if the attribute is not readonly
125    if (!a.readOnly ())
126    {
127      setupForSetMethod ();
128      super.stub (className, isAbstract, symbolTable, a, stream, index + 1);
129      clear ();
130    }
131  } // stub
132
133  /**
134   *
135   **/
136  protected void skeleton (Hashtable symbolTable, MethodEntry m, PrintWriter stream, int index)
137  {
138    AttributeEntry a = (AttributeEntry)m;
139
140    // Generate for the get method
141    super.skeleton (symbolTable, a, stream, index);
142
143    // Generate for the set method if the attribute is not readonly
144    if (!a.readOnly ())
145    {
146      setupForSetMethod ();
147      super.skeleton (symbolTable, a, stream, index + 1);
148      clear ();
149    }
150  } // skeleton
151
152  /**
153   *
154   **/
155  protected void dispatchSkeleton (Hashtable symbolTable, MethodEntry m, PrintWriter stream, int index)
156  {
157    AttributeEntry a = (AttributeEntry)m;
158
159    // Generate for the get method
160    super.dispatchSkeleton (symbolTable, a, stream, index);
161
162    // Generate for the set method if the attribute is not readonly
163    if (!a.readOnly ())
164    {
165      setupForSetMethod ();
166      super.dispatchSkeleton (symbolTable, m, stream, index + 1);
167      clear ();
168    }
169  } // dispatchSkeleton
170
171  private SymtabEntry realType = null;
172
173  /**
174   *
175   **/
176  protected void setupForSetMethod ()
177  {
178    ParameterEntry parm = Compile.compiler.factory.parameterEntry ();
179    parm.type (m.type ());
180    parm.name ("new" + Util.capitalize (m.name ()));
181    m.parameters ().addElement (parm);
182    realType = m.type ();
183    m.type (null);
184  } // setupForSetMethod
185
186  /**
187   *
188   **/
189  protected void clear ()
190  {
191    // Set back to normal
192    m.parameters ().removeAllElements ();
193    m.type (realType);
194  } // clear
195} // class AttributeGen
196