|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Objectcom.sun.grizzly.util.StateHolder<E>
public class StateHolder<E>
Class, which holds the state. Provides API for state change notification, state read/write access locking.
Nested Class Summary | |
---|---|
static class |
StateHolder.ConditionListener<E>
Common ConditionListener class, which could be used with StateHolder, to register custom conditions. |
static class |
StateHolder.EqualConditionListener<E>
Equal ConditionListener implementation |
static class |
StateHolder.EventListener
EventListener class, which is a part of EventConditionListener , and implements notificatation logic,
when condition becomes true. |
static class |
StateHolder.NotEqualConditionListener<E>
Not equal ConditionListener implementation |
Constructor Summary | |
---|---|
StateHolder()
Constructs StateHolder . |
|
StateHolder(boolean isLockEnabled)
Constructs StateHolder . |
Method Summary | |
---|---|
protected void |
checkConditionListeners(E state)
|
E |
getState()
Gets current state Current StateHolder locking mode will be used |
E |
getState(boolean locked)
Gets current state |
ReentrantReadWriteLock |
getStateLocker()
Gets Read/Write locker, which is used by this StateHolder |
boolean |
isLockEnabled()
Gets current locking mode |
void |
notifyWhenConditionMatchState(StateHolder.ConditionListener<E> conditionListener)
Register custom condition listener, which will be notified, when listener's condition will become true. |
StateHolder.ConditionListener<E> |
notifyWhenStateIsEqual(E state,
Object listener)
Register listener, which will be notified, when state will be equal to passed one. |
StateHolder.ConditionListener<E> |
notifyWhenStateIsNotEqual(E state,
Object listener)
Register listener, which will be notified, when state will become not equal to passed one. |
void |
removeConditionListener(StateHolder.ConditionListener<E> conditionListener)
|
void |
setLockEnabled(boolean isLockEnabled)
Setss current locking mode |
void |
setState(E state)
Sets current state Current StateHolder locking mode will be used |
void |
setState(E state,
boolean locked)
Sets current state |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
---|
public StateHolder()
StateHolder
.
StateHolder will work in not-locking mode.
public StateHolder(boolean isLockEnabled)
StateHolder
.
isLockEnabled
- locking modeMethod Detail |
---|
public E getState()
public E getState(boolean locked)
locked
- if true, get will be invoked in locking mode, false - non-locked
public void setState(E state)
state
- public void setState(E state, boolean locked)
state
- locked
- if true, set will be invoked in locking mode, false - non-lockingpublic ReentrantReadWriteLock getStateLocker()
StateHolder
public boolean isLockEnabled()
public void setLockEnabled(boolean isLockEnabled)
isLockEnabled
- true, if mode will be set to locking, false otherwisepublic StateHolder.ConditionListener<E> notifyWhenStateIsEqual(E state, Object listener)
StateHolder
's listener set.
state
- State, listener is interested inlistener
- Object, which will be notified. This StateHolder
implementation works with Runnable, Callable, CountDownLatch, Object
listeners
ConditionListener
, if current state is not equal to required
and listener was registered, null if current state is equal to required.
In both cases listener will be notifiedpublic StateHolder.ConditionListener<E> notifyWhenStateIsNotEqual(E state, Object listener)
StateHolder
's listener set.
state
- State, listener is interested inlistener
- Object, which will be notified. This StateHolder
implementation works with Runnable, Callable, CountDownLatch, Object
listeners
ConditionListener
, if current state is equal to required
and listener was registered, null if current state is not equal to required.
In both cases listener will be notifiedpublic void notifyWhenConditionMatchState(StateHolder.ConditionListener<E> conditionListener)
StateHolder
's listener set.
conditionListener
- contains both condition and listener, which will be
called, when condition become truepublic void removeConditionListener(StateHolder.ConditionListener<E> conditionListener)
protected void checkConditionListeners(E state)
|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |