org.elasticsearch.common.util.concurrent

インタフェース RefCounted

既知の実装クラスのリスト:

AbstractRefCounted, RecoveryStatus, Store

public interface RefCounted

An interface for objects that need to be notified when all reference to itself are not in user anymore. This implements basic reference counting for instance if async operations holding on to services that are close concurrently but should be functional until all async operations have joined Classes implementing this interface should ref counted at any time ie. if an object is used it's reference count should be increased before using it by calling #incRef and a corresponding #decRef must be called in a try/finally block to release the object again ie.:

      inst.incRef();
      try {
        // use the inst...

      } finally {
          inst.decRef();
      }
 

メソッドのサマリー

修飾子とタイプ	メソッドと説明
void	decRef() Decreases the refCount of this instance.
void	incRef() Increments the refCount of this instance.
boolean	tryIncRef() Tries to increment the refCount of this instance.

メソッドの詳細

incRef

void incRef()

Increments the refCount of this instance.

例外:

org.apache.lucene.store.AlreadyClosedException - iff the reference counter can not be incremented.

関連項目:

decRef(), tryIncRef()

tryIncRef

boolean tryIncRef()

Tries to increment the refCount of this instance. This method will return true iff the refCount was

関連項目:

decRef(), incRef()

decRef

void decRef()

Decreases the refCount of this instance. If the refCount drops to 0, then this instance is considered as closed and should not be used anymore.

関連項目:

incRef()