ListResouceBundle provides an easy way, to create your own
* resource bundle. It is an abstract class that you can subclass. You should
* then overwrite the getContents method, that provides a key/value list.
*
* The key/value list is a two dimensional list of Object. The first
* dimension ranges over the resources. The second dimension ranges from
* zero (key) to one (value). The keys must be of type String, and they are
* case-sensitive. For example:
*
public class MyResources
extends ListResourceBundle
{
public Object[][] getContents()
{
return contents;
}
static final Object[][] contents =
{
// LOCALIZED STRINGS
{"s1", "The disk \"{1}\" contains {0}."}, // MessageFormat pattern
{"s2", "1"}, // location of {0} in pattern
{"s3", "My Disk"}, // sample disk name
{"s4", "no files"}, // first ChoiceFormat choice
{"s5", "one file"}, // second ChoiceFormat choice
{"s6", "{0,number} files"} // third ChoiceFormat choice
{"s7", "3 Mar 96"}, // sample date
{"s8", new Dimension(1,5)} // real object, not just string
// END OF LOCALIZED MATERIAL
};
}
*
* @author Jochen Hoenicke
* @author Eric Blake getObject.
*
* @param key the key of the resource
* @return the resource for the key, or null if it doesn't exist
*/
public final Object handleGetObject(String key)
{
Object[][] contents = getContents();
int i = contents.length;
while (--i >= 0)
if (key.equals(contents[i][0]))
return contents[i][1];
return null;
}
/**
* This method should return all keys for which a resource exists.
*
* @return an enumeration of the keys
*/
public Enumeration getKeys()
{
// We make a new Set that holds all the keys, then return an enumeration
// for that. This prevents modifications from ruining the enumeration,
// as well as ignoring duplicates.
final Object[][] contents = getContents();
Set s = new HashSet();
int i = contents.length;
while (--i >= 0)
s.add(contents[i][0]);
ResourceBundle bundle = parent;
// Eliminate tail recursion.
while (bundle != null)
{
Enumeration e = bundle.getKeys();
while (e.hasMoreElements())
s.add(e.nextElement());
bundle = bundle.parent;
}
return Collections.enumeration(s);
}
/**
* Gets the key/value list. You must override this method, and should not
* provide duplicate keys or null entries.
*
* @return a two dimensional list of String key / Object resouce pairs
*/
protected abstract Object[][] getContents();
} // class ListResourceBundle