com.tomgibara.pronto.state.impl
Class StateFactoryImpl

java.lang.Object
  com.tomgibara.pronto.state.StateFactory
      com.tomgibara.pronto.state.impl.StateFactoryImpl

public class StateFactoryImpl
extends StateFactory

Constructor Summary

StateFactoryImpl()

Method Summary

<S,L> StateGraph<S,L>	emptyStateGraph() Creates an empty state graph from which an editor is typically obtained to build any required state graph.
<S,L,P> StateEngine<S,L,P>	newEngine(StateGraph<S,L> graph, StateActivator<S,L,P> activator) Combines a graph and activator to form a new engine.

Methods inherited from class com.tomgibara.pronto.state.StateFactory

getInstance

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StateFactoryImpl

public StateFactoryImpl()

Method Detail

emptyStateGraph

public <S,L> StateGraph<S,L> emptyStateGraph()

Description copied from class: StateFactory

Creates an empty state graph from which an editor is typically obtained to build any required state graph.

Specified by:

emptyStateGraph in class StateFactory

Type Parameters:

S - the type of states the state graph editor will permit

L - the type of labels the state graph editor will permit

Returns:

a state graph containing no states

newEngine

public <S,L,P> StateEngine<S,L,P> newEngine(StateGraph<S,L> graph,
                                            StateActivator<S,L,P> activator)

Description copied from class: StateFactory

Combines a graph and activator to form a new engine.

Specified by:

newEngine in class StateFactory

Type Parameters:

S - the type of states in the graph

L - the type of labels in the graph

P - the type of parameters accepted by the activator

Parameters:

graph - the graph of states and transitions permitted by the engine

activator - an object that can 'act' in response to state changes

Returns:

a new engine which can transition over the graph of states subject to execution of the activator