[news.eclipse.newcomer] Creating a new Editor

[Peyush Jain <peyush_jain@xxxxxxxxxxx>]

Hello everyone,

I am new here, so please point me to the correct newsgroup if this is 
not the right newsgroup to ask the following question.

I am trying to develop a new editor for all the files with extension 
cfe. I followed all the steps that are shown in numerous tutorials for 
creating an editor but for some reason what works for everyone is not 
working for me. I created a CfeEditor class (extends EditorPart) with 
the following init() function.

*******************************************************************
import org.eclipse.ui.IFileEditorInput;
import org.eclipse.ui.part.EditorPart;
import org.eclipse.ui.part.FileEditorInput;

public void init(IEditorSite site, IEditorInput input)
  throws PartInitException
{
  setSite(site);
  setInput(input);

  System.out.println("INPUT: "+input.getClass());

  if(input instanceof FileEditorInput)
  {
    System.out.println("input is an instance of FileEditorInput."); 

  }
  else
  {
    System.out.println("input is NOT an instance of FileEditorInput");
  }
}
*******************************************************************

I got the following output:
*******************************************************************
INPUT: class org.eclipse.ui.part.FileEditorInput
input is NOT an instance of FileEditorInput
*******************************************************************

(Note I tried using instanceof IFileEditorInput instead of 
FileEditorInput, but got the same results)

This is very confusing because if input is of the class FileEditorInput 
then it SHOULD be an instance of FileEditorInput. Once this works, I 
want to get to the file (for parsing) by using 
((FileEditorInput)input).getFile(). If I don't check for the instance 
then it throws an ClassCastException.

Please help...

Thanks,

Peyush