Main help entry http://help.eclipse.org/ is bizarre.
They have good content tree, but bad search.
For example, if search for ViewPart
, then there will be no link to this class' page found. Closest finding will be "Package org.eclipse.ui.part" page. But one can't guess apriori that it contains the requested class.
Is it possible to get "All classes" page as in Javadoc?
Search via Package Index is also long.
Once you are on a javadoc page such as this one, you can click on "FRAMES" to show all the packages and classes:
Note: this generally works with any online javadoc document.