Jump into interface implementation in Eclipse IDE

Question

You know how in Eclipse  pressing F3 over a method will take you to its declaration  Well I have a method that is part of an interface  clicking F3 over this naturally takes me to the declaring interface   Obviously there is an object implementing this interface and this is where the method is actually implemented   I want  when I press F3  to jump to the implementation  not the interface declaration  I know that the implementation may not be known at compile-time  so is there a way for Eclipse to show me all the classes implementing the interface so that I can select which implemented method to view  Right now when this happens I am just manually searching for this to find the implemented method

User · Accepted Answer

Here s what I do    In the interface  move the cursor to the method name  Press F4     Type Hierarchy view appears In the lower part of the view  the method should already be selected  In its toolbar  click  Lock view and show members in hierarchy   should be the leftmost toolbar icon   In the upper part of the view  you can browse through all implementations of the method    The procedure isn t very quick  but it gives you a good overview

User · Answer

If you are really looking to speed your code navigation  you might want to take a look at nWire for Java  It is a code exploration plugin for Eclipse  You can instantly see all the related artifacts  So  in that case  you will focus on the method call and instantly see all possible implementations  declarations  invocations  etc

User · Answer

There s a big productivity boost if you add an Alt   F3 key binding to the Open Implementation feature  and just use F3 to go to interfaces  and Alt   F3 to go to implementations

User · Answer

I always use this implementors plugin to find all the implementation of an Interface  http   eclipse-tools sourceforge net updates   it s my favorite and the best

User · Answer

ctrl   mouse hover   click  Open Implementation    On ctrl   hover  you should see the following menu       Tested on Eclipse Mars 2  4 5 2

User · Answer

Highlight an interface and use Ctrl T to open  Quick Type Hierarchy

User · Answer

Here is what I do    I press command  on Mac  probably control on PC  and then hover over the method or class   When you do this a popup window will appear with the choices  Open Declaration    Open Implementation    Open Return Type    You can then click on what you want and Eclipse brings you right there   I believe this works for version 3 6 and up    It is just as quick as IntelliJ I think

User · Answer

Press Ctrl   T on the method name  rather than F3   This gives the type hierarchy as a pop-up so is slightly faster than using F4 and the type hierarchy view   Also  when done on a method  subtypes that don t implement override the method will be greyed out  and when you double click on a class in the list it will take you straight to the method in that class

User · Answer

The best solution would be Ctrl Alt I

User · Answer

See In eclipse  ctrl-click goes to the declaration of the method I clicked  For interfaces with one implementation  how can I just directly to that implementation  for some alternative solutions    Anyway  I think you might be looking for something like this    http   eclipse-tools sourceforge net implementors

User · Answer

Well    well    I hope you use Eclipse Helios  because what you asked is available on Helios   Put your text cursor again on the method and click menu Navigate   Open Implementation  Now if you have more than one implementation of the method  you will get choice to pick which implementation to open     By defining a keybinding on Preferences   General   Keys you can even use the feature easier  but before you do that  see if this shortcut is fast enough for you   Press Ctrl   click and hold  Now move your mouse over the same method  Tadam    you will get choice     If you pick Open Implementation you   ll get the same choice as before

[eclipse] Jump into interface implementation in Eclipse IDE

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