How can I get the absolute path of the preference file for a particular plugin in eclipse plugin development?

Question

I want to read the absolute path of the preference file for a particular plugin which is generally stored at:

Platform.getLocation() + "\.metadata\.plugins\org.eclipse.core.runtime\.settings\myPlugin.prefs"

Is there any way to get it directly somehow using eclipse provided Apis instead of hard-coding the 2nd part of the path?

Answer 1

This should give the correct location:

Bundle rt = Platform.getBundle(IPreferencesConstants.RUNTIME_NAME);

IPath path = Platform.getStateLocation(rt).append(".settings").append("myPlugin").addFileExtension("prefs");

The actual location calculation is in org.eclipse.core.internal.preferences.EclipsePreferences