com.prosysopc.ua.stack.utils

Class State<T>

java.lang.Object

com.prosysopc.ua.stack.utils.AbstractState<T,RuntimeException>

com.prosysopc.ua.stack.utils.State<T>

All Implemented Interfaces:

IStatefulObject<T,RuntimeException>

public class State<T>
extends AbstractState<T,RuntimeException>

An AbstractState subtype with the error type set as RuntimeException.

Constructor Summary

Constructors

Constructor and Description
State(T initialState) Constructor for State.

Method Summary

Modifier and Type	Method and Description
T	attemptSetState(Set<T> prerequisiteState, T newState) attemptSetState.
protected void	clearError() clearError.
void	setError(RuntimeException error) setError.
boolean	setState(T state) setState.
T	setState(T state, Executor listenerExecutor, Set<T> prerequisiteStates) Set state.
void	throwIfError() assertNoError.

Methods inherited from class com.prosysopc.ua.stack.utils.AbstractState

addStateListener, addStateNotifiable, getError, getState, hasError, isStateTransitionAllowed, onListenerException, onStateTransition, removeStateListener, removeStateNotifiable, waitForState, waitForState, waitForStateUninterruptibly

Methods inherited from class java.lang.Object

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

Constructor Detail

State

public State(T initialState)

Constructor for State.

Parameters:

initialState - a StateType object.

Method Detail

attemptSetState

public T attemptSetState(Set<T> prerequisiteState,
                         T newState)

attemptSetState.

Overrides:

attemptSetState in class AbstractState<T,RuntimeException>

Parameters:

prerequisiteState - a Set object.

newState - a StateType object.

Returns:

a StateType object.

setError

public void setError(RuntimeException error)

setError.

Overrides:

setError in class AbstractState<T,RuntimeException>

Parameters:

error - a RuntimeException object.

setState

public boolean setState(T state)

setState.

Overrides:

setState in class AbstractState<T,RuntimeException>

Parameters:

state - a StateType object.

Returns:

a boolean.

setState

public T setState(T state,
                  Executor listenerExecutor,
                  Set<T> prerequisiteStates)

Description copied from class: AbstractState

Set state.

Overrides:

setState in class AbstractState<T,RuntimeException>

Parameters:

state - a StateType object.

listenerExecutor - executor for post listener handling or null for immediate

prerequisiteStates - old state prerequisite or null

Returns:

state after attempt

throwIfError

public void throwIfError()
                  throws RuntimeException

Description copied from class: AbstractState

assertNoError.

Overrides:

throwIfError in class AbstractState<T,RuntimeException>

Throws:

RuntimeException

clearError

protected void clearError()

Description copied from class: AbstractState

clearError.

Overrides:

clearError in class AbstractState<T,RuntimeException>