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Java > Open Source Codes > com > puppycrawl > tools > checkstyle > checks > coding > MissingCtorCheck


1 ////////////////////////////////////////////////////////////////////////////////
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// checkstyle: Checks Java source code for adherence to a set of rules.
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// Copyright (C) 2001-2005 Oliver Burn
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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////////////////////////////////////////////////////////////////////////////////
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package com.puppycrawl.tools.checkstyle.checks.coding;
20
21 import com.puppycrawl.tools.checkstyle.api.DetailAST;
22 import com.puppycrawl.tools.checkstyle.api.TokenTypes;
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24 import com.puppycrawl.tools.checkstyle.checks.DescendantTokenCheck;
25
26 /**
27  * <p>
28  * Checks that classes (except abstract one) define a ctor and don't rely
29  * on the default one.
30  * </p>
31  * <p>
32  * An example of how to configure the check is:
33  * </p>
34  * <pre>
35  * &lt;module name="MissingCtor"/&gt;
36  * </pre>
37  *
38  * @author o_sukhodolsky
39  */

40 public class MissingCtorCheck extends DescendantTokenCheck
41 {
42     /** Creates new instance of the check. */
43     public MissingCtorCheck()
44     {
45         setLimitedTokens(new String JavaDoc[] {
46             TokenTypes.getTokenName(TokenTypes.CTOR_DEF),
47         });
48         setMinimumNumber(1);
49         setMaximumDepth(2);
50         setMinimumMessage("missing.ctor");
51     }
52
53     /** {@inheritDoc} */
54     public int[] getDefaultTokens()
55     {
56         return new int[]{TokenTypes.CLASS_DEF};
57     }
58
59     /** {@inheritDoc} */
60     public int[] getAcceptableTokens()
61     {
62         return getDefaultTokens();
63     }
64
65     /** {@inheritDoc} */
66     public void visitToken(DetailAST aAST)
67     {
68         final DetailAST modifiers = aAST.findFirstToken(TokenTypes.MODIFIERS);
69         if ((modifiers != null)
70             && modifiers.branchContains(TokenTypes.ABSTRACT))
71         {
72             // should apply the check to abtract class
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return;
74         }
75
76         super.visitToken(aAST);
77     }
78 }
79
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