/[classpath]/classpath/java/awt/datatransfer/SystemFlavorMap.java
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revision 1.3 by mark, Tue Jan 22 22:26:58 2002 UTC revision 1.4 by mkoch, Mon Dec 23 12:45:46 2002 UTC
# Line 40  package java.awt.datatransfer; Line 40  package java.awt.datatransfer;
40    
41  import java.util.HashMap;  import java.util.HashMap;
42  import java.util.Map;  import java.util.Map;
43    import java.util.List;
44    
45  /**  /**
46    * This class maps between native platform type names and DataFlavors.    * This class maps between native platform type names and DataFlavors.
# Line 47  import java.util.Map; Line 48  import java.util.Map;
48    * XXX - The current implementation does no mapping at all.    * XXX - The current implementation does no mapping at all.
49    *    *
50    * @author Mark Wielaard (mark@klomp.org)    * @author Mark Wielaard (mark@klomp.org)
   */  
 public final class SystemFlavorMap implements FlavorMap  
 {  
   
 /**  
   * The default (instance) flavor map.  
   */  
 private static FlavorMap defaultFlavorMap;  
   
 /**  
   * Private constructor.  
   */  
 private SystemFlavorMap()  
 {  
 }  
   
 /*************************************************************************/  
   
 /**  
   * Maps the specified <code>DataFlavor</code> objects to the native  
   * data type name.  The returned <code>Map</code> has keys that are  
   * the data flavors and values that are strings.  The returned map  
   * may be modified.  This can be useful for implementing nested mappings.  
   *  
   * @param flavors An array of data flavors to map  
   *                or null for all data flavors.  
51    *    *
52    * @return A <code>Map</code> of native data types to data flavors.    * @since 1.2
   */  
 public Map  
 getNativesForFlavors(DataFlavor[] flavors)  
 {  
   return(new HashMap());  
 }  
   
 /*************************************************************************/  
   
 /**  
   * Maps the specified native type names to <code>DataFlavor</code>'s.  
   * The returned <code>Map</code> has keys that are strings and values  
   * that are <code>DataFlavor</code>'s.  The returned map may be  
   * modified.  This can be useful for implementing nested mappings.  
   *  
   * @param natives An array of native types to map  
   *                or null for all native types.  
   *  
   * @return A <code>Map</code> of data flavors to native type names.  
   */  
 public Map  
 getFlavorsForNatives(String[] natives)  
 {  
   return(new HashMap());  
 }  
   
 /*************************************************************************/  
   
 /**  
   * Returns the default (instance) (System)FlavorMap.  
   */  
 public static FlavorMap  
 getDefaultFlavorMap()  
 {  
   if (defaultFlavorMap == null)  
     defaultFlavorMap = new SystemFlavorMap();  
   
   return(defaultFlavorMap);  
 }  
   
 /*************************************************************************/  
   
 /**  
   * Returns the native type name for the given java mime type.  
   */  
 public static String  
 encodeJavaMIMEType(String mime)  
 {  
   return null;  
 }  
   
 /*************************************************************************/  
   
 /**  
   * Returns the native type name for the given data flavor.  
   */  
 public static String  
 encodeDataFlavor(DataFlavor df)  
 {  
   return null;  
 }  
   
 /*************************************************************************/  
   
 /**  
   * Returns true if the native type name can be represented as  
   * a java mime type.  
   */  
 public static boolean  
 isJavaMIMEType(String name)  
 {  
   return(false);  
 }  
   
 /*************************************************************************/  
   
 /**  
   * Returns the java mime type for the given the native type name.  
53    */    */
54  public static String  public final class SystemFlavorMap implements FlavorMap, FlavorTable
 decodeJavaMIMEType(String name)  
55  {  {
56    return null;    /**
57  }     * The default (instance) flavor map.
58       */
59  /*************************************************************************/    private static FlavorMap defaultFlavorMap;
60    
61  /**    /**
62    * Returns the data flavor given the native type name     * Private constructor.
63    * or null when no such data flavor exists.     */
64    */    private SystemFlavorMap ()
65  public static DataFlavor    {
66  decodeDataFlavor(String name) throws ClassNotFoundException    }
67  {  
68    String javaMIMEType = decodeJavaMIMEType(name);    /**
69    if (javaMIMEType != null)     * Maps the specified <code>DataFlavor</code> objects to the native
70      return(new DataFlavor(javaMIMEType));     * data type name.  The returned <code>Map</code> has keys that are
71    else     * the data flavors and values that are strings.  The returned map
72      return(null);     * may be modified.  This can be useful for implementing nested mappings.
73  }     *
74       * @param flavors An array of data flavors to map
75       *                or null for all data flavors.
76       *
77       * @return A <code>Map</code> of native data types to data flavors.
78       */
79      public Map getNativesForFlavors (DataFlavor[] flavors)
80      {
81        return new HashMap();
82      }
83    
84      /**
85       * Maps the specified native type names to <code>DataFlavor</code>'s.
86       * The returned <code>Map</code> has keys that are strings and values
87       * that are <code>DataFlavor</code>'s.  The returned map may be
88       * modified.  This can be useful for implementing nested mappings.
89       *
90       * @param natives An array of native types to map
91       *                or null for all native types.
92       *
93       * @return A <code>Map</code> of data flavors to native type names.
94       */
95      public Map getFlavorsForNatives (String[] natives)
96      {
97        return new HashMap();
98      }
99    
100      /**
101       * Returns the default (instance) (System)FlavorMap.
102       */
103      public static FlavorMap getDefaultFlavorMap ()
104      {
105        if (defaultFlavorMap == null)
106          defaultFlavorMap = new SystemFlavorMap ();
107    
108        return defaultFlavorMap;
109      }
110    
111      /**
112       * Returns the native type name for the given java mime type.
113       */
114      public static String encodeJavaMIMEType (String mime)
115      {
116        return null;
117      }
118    
119      /**
120       * Returns the native type name for the given data flavor.
121       */
122      public static String encodeDataFlavor (DataFlavor df)
123      {
124        return null;
125      }
126    
127      /**
128       * Returns true if the native type name can be represented as
129       * a java mime type.
130       */
131      public static boolean isJavaMIMEType (String name)
132      {
133        return false;
134      }
135    
136      /**
137       * Returns the java mime type for the given the native type name.
138       */
139      public static String decodeJavaMIMEType (String name)
140      {
141        return null;
142      }
143    
144      /**
145       * Returns the data flavor given the native type name
146       * or null when no such data flavor exists.
147       */
148      public static DataFlavor decodeDataFlavor (String name)
149        throws ClassNotFoundException
150      {
151        String javaMIMEType = decodeJavaMIMEType (name);
152        
153        if (javaMIMEType != null)
154          return new DataFlavor (javaMIMEType);
155        else
156          return null;
157      }
158    
159      public List getFlavorsForNative (String nat)
160      {
161        throw new Error ("Not implemented");
162      }
163    
164      public List getNativesForFlavor (DataFlavor flav)
165      {
166        throw new Error ("Not implemented");
167      }
168    
169  } // class SystemFlavorMap  } // class SystemFlavorMap
   

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