2008-09-18

Eclipse Template: Singleton Pattern

Are you writing your Java classes as Singletons quite often? Use this Eclipse template and make any class a singleton in two seconds:

Setup

Go to Window -> Preferences -> Java -> Editor -> Templates. Create New:



Code for copy paste:
private static final ${enclosing_type} instance = new ${enclosing_type}();
private ${enclosing_type}() {}
public static ${enclosing_type} getInstance() {
    return instance;
}


Action

Type "single" or "singleton", hit Content Assist shortcut key (ctrl+space by default), then enter:



And there you go - a singleton in two seconds (actual time may vary on your typing and CPU speed).



You may want to use a different Singleton implementation. Check out Java Singleton: The Proper Way for a good example.

4 comments:

  1. eclipse templates makes a lot of things easy :)

    ReplyDelete
  2. Thank you for the tip. Very helpful.

    ReplyDelete
  3. Love it.
    Just googled for something like this and this blog came nearly on top.

    ReplyDelete

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