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1   /***************************************************************************************
2    * Copyright (c) Jonas BonŽr, Alexandre Vasseur. All rights reserved.                 *
3    * http://aspectwerkz.codehaus.org                                                    *
4    * ---------------------------------------------------------------------------------- *
5    * The software in this package is published under the terms of the LGPL license      *
6    * a copy of which has been included with this distribution in the license.txt file.  *
7    **************************************************************************************/
8   package org.codehaus.aspectwerkz.definition;
9   
10  import org.codehaus.aspectwerkz.expression.ExpressionInfo;
11  
12  import java.util.ArrayList;
13  import java.util.List;
14  
15  /***
16   * Holds the meta-data for the interface introductions. <p/>This definition holds only pure interface introduction.
17   *
18   * @author <a href="mailto:jboner@codehaus.org">Jonas BonŽr </a>
19   * @author <a href="mailto:alex@gnilux.com">Alexandre Vasseur </a>
20   */
21  public class InterfaceIntroductionDefinition {
22      /***
23       * The name of the interface introduction.
24       */
25      protected final String m_name;
26  
27      /***
28       * The introduction expressions.
29       */
30      protected ExpressionInfo[] m_expressionInfos = new ExpressionInfo[]{};
31  
32      /***
33       * The attribute for the introduction.
34       */
35      protected String m_attribute = "";
36  
37      /***
38       * The interface classes name.
39       */
40      protected List m_interfaceClassNames = new ArrayList();
41  
42      /***
43       * Creates a new introduction meta-data instance.
44       *
45       * @param name               the name of the expressionInfo
46       * @param interfaceClassName the class name of the interface
47       */
48      public InterfaceIntroductionDefinition(final String name, final String interfaceClassName) {
49          if (name == null) {
50              throw new IllegalArgumentException("name can not be null");
51          }
52          if (interfaceClassName == null) {
53              throw new IllegalArgumentException("interface class name can not be null");
54          }
55          m_name = name;
56          m_interfaceClassNames.add(interfaceClassName);
57      }
58  
59      /***
60       * Returns the name of the introduction.
61       *
62       * @return the name
63       */
64      public String getName() {
65          return m_name;
66      }
67  
68      /***
69       * Returns the expressions.
70       *
71       * @return the expressions array
72       */
73      public ExpressionInfo[] getExpressionInfos() {
74          return m_expressionInfos;
75      }
76  
77      /***
78       * Returns the class name of the interface.
79       *
80       * @return the class name of the interface
81       */
82      public String getInterfaceClassName() {
83          return (String) m_interfaceClassNames.get(0);
84      }
85  
86      /***
87       * Returns the class name of the interface.
88       *
89       * @return the class name of the interface
90       */
91      public List getInterfaceClassNames() {
92          return m_interfaceClassNames;
93      }
94  
95      /***
96       * Returns the attribute.
97       *
98       * @return the attribute
99       */
100     public String getAttribute() {
101         return m_attribute;
102     }
103 
104     /***
105      * Sets the attribute.
106      *
107      * @param attribute the attribute
108      */
109     public void setAttribute(final String attribute) {
110         m_attribute = attribute;
111     }
112 
113     /***
114      * Adds a new expression info.
115      *
116      * @param expression a new expression info
117      */
118     public void addExpressionInfo(final ExpressionInfo expression) {
119         final ExpressionInfo[] tmpExpressions = new ExpressionInfo[m_expressionInfos.length + 1];
120         java.lang.System.arraycopy(m_expressionInfos, 0, tmpExpressions, 0, m_expressionInfos.length);
121         tmpExpressions[m_expressionInfos.length] = expression;
122         m_expressionInfos = new ExpressionInfo[m_expressionInfos.length + 1];
123         java.lang.System.arraycopy(tmpExpressions, 0, m_expressionInfos, 0, tmpExpressions.length);
124     }
125 
126     /***
127      * Adds an array with new expression infos.
128      *
129      * @param expressions an array with new expression infos
130      */
131     public void addExpressionInfos(final ExpressionInfo[] expressions) {
132         final ExpressionInfo[] tmpExpressions = new ExpressionInfo[m_expressionInfos.length + expressions.length];
133         java.lang.System.arraycopy(m_expressionInfos, 0, tmpExpressions, 0, m_expressionInfos.length);
134         java.lang.System.arraycopy(expressions, 0, tmpExpressions, m_expressionInfos.length, expressions.length);
135         m_expressionInfos = new ExpressionInfo[m_expressionInfos.length + expressions.length];
136         java.lang.System.arraycopy(tmpExpressions, 0, m_expressionInfos, 0, tmpExpressions.length);
137     }
138 }