DBIdentifier


1   /*
2    * The contents of this file are subject to the terms of the Common Development
3    * and Distribution License (the License). You may not use this file except in
4    * compliance with the License.
5    *
6    * You can obtain a copy of the License at http://www.netbeans.org/cddl.html
7    * or http://www.netbeans.org/cddl.txt.
8    *
9    * When distributing Covered Code, include this CDDL Header Notice in each file
10   * and include the License file at http://www.netbeans.org/cddl.txt.
11   * If applicable, add the following below the CDDL Header, with the fields
12   * enclosed by brackets [] replaced by your own identifying information:
13   * "Portions Copyrighted [year] [name of copyright owner]"
14   *
15   * The Original Software is NetBeans. The Initial Developer of the Original
16   * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
17   * Microsystems, Inc. All Rights Reserved.
18   */
19  
20  package org.netbeans.modules.dbschema;
21  
22  /** Placeholder to represent a database identifier - not really implemented
23  * yet.
24  */
25  public final class DBIdentifier {
26      private String   name;
27      transient private String   fullName = null;
28  
29      /** Default constructor
30       */
31      public DBIdentifier() {
32      }
33  
34      /** Creates a new identifier with a given name.
35       * @param name the name
36       */
37      private DBIdentifier(String   name) {
38          this.name = name;
39      }
40  
41      /** Creates an identifier with the supplied fully qualified name.
42       * @param name the name of the identifier to create
43       * @return the identifier
44       */
45      public static DBIdentifier create(String   name) {
46          String   shortName = name.intern();
47          String   longName = null;
48          int semicolonIndex = name.indexOf(';');
49          DBIdentifier returnId = null;
50  
51          if (semicolonIndex == -1) {
52              String   testName = findShortName(name);
53  
54              if (!testName.equals(name)) {   
55                  shortName = testName.intern();
56                  longName = name;
57              } else {
58                  int index = name.lastIndexOf('/');
59                  if (index != -1) {  
60                      shortName = name.substring(index + 1).intern();
61                      longName = name;
62                  }
63              }
64          } else {
65              String   firstHalf = name.substring(0, semicolonIndex);
66              String   secondHalf = name.substring(semicolonIndex + 1);
67              String   testFirstName = findShortName(firstHalf);
68              String   testSecondName = findShortName(secondHalf);
69  
70              if (!testFirstName.equals(firstHalf) && !testSecondName.equals(secondHalf)) {   
71                  shortName = testFirstName + ';' + testSecondName;
72                  longName = name;
73              }
74          }
75          
76          returnId = new DBIdentifier(shortName);
77  
78          if (longName != null)
79              returnId.setFullName(longName);
80  
81          return returnId;
82      }
83      
84      /** Returns a short name.
85       * @param name the fully qualified name.
86       * @return a short name.
87       */
88      private static String   findShortName(String   name) {
89          int index = name.lastIndexOf('.');
90  
91          if (index != -1)
92              return name.substring(index + 1);
93  
94          return name;
95      }
96  
97      /** Gets the simple name within a package.
98       * @return the simple name
99       */
100     public String   getName() {
101         return name;
102     }
103     
104     /** Sets the simple name.
105      * @param name the simple name
106      */
107     public void setName (String   name) {
108         this.name = name;
109     }    
110 
111     /** Gets the fully qualified name with the schema/table prefix (if any).
112      * @return the fully qualified name
113      */
114     public String   getFullName () {
115         return fullName;
116     }
117     
118     /** Sets the fully qualified name.
119      * @param fullName the fully qualified name
120      */
121     public void setFullName (String   fullName) {
122         this.fullName = fullName;
123     }
124   
125     /** Returns a string representation of the object.
126      * @return a string representation of the object.
127      */
128     public String   toString() {
129         return name;
130     }
131 
132     /** Compare the specified Identifier with this Identifier for equality.
133      * @param id Identifier to be compared with this
134      * @return true if the specified object equals to specified Identifier otherwise false.
135      */
136     public boolean compareTo(DBIdentifier id, boolean source) {
137         if (id.fullName != null && fullName != null)
138             if (id.fullName.equals(fullName))
139                 return true;
140             else
141                 return false;
142 
143         if (id.name.equals(name))
144             return true;
145     
146         return false;
147     }
148 }
149
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