LocalOperator

Interface LocalOperators Local operators only define what to do a one entity which is reached during a grid walkthrough on one level. The walkthrough is made by a discrete operator which organizes the walktrough and calls the local operator on each entity. Furthermore the local operator provides a method prepareGlobal which is called once before the grid walktrough and a method finalizeGlobal which ic called once after the walktrough. The methods prepareLocal and finalizeLocal are called on each entity. If for one operator this methods are not needed, the definition of them is left free.

An interface class: