[news.eclipse.tools] Text Editor - How it works

["MorPheus" <rgurupackiam@xxxxxxxxxxxxx>]

Hi,

I need to know how the text editor plug-in is able to act as default editor
for the file that has no editor associated with it.
We can open any file with the text editor using "open with" options in the
popup menu but the text editor won't be the default editor for the files
that has some other editor assigned as default editor.
What is the technical procedure that goes with text editor. If text editor
plug-in is able to it then what is the secret formula that they are
following to do this.
Please explain in details.

MorPheus