DispatchAction and LookupDispatchAction

[p hasini]

What is the difference between DispatchAction and LookupDispatchAction.

DispatchAction is used when we want to group a set of methods to a single action.
For example ; add() ,update() and delete() in UserAction class which extends DispatchAction class.

What is the purpose of LookupDispatchAction.

[David Newton]

Perhaps reading the documentation would help:

DispatchAction Javadocs
LookupDispatchAction Javadocs

It's almost always the best, easiest, and fastest way to get a question answered.