org.apache.camel.component.zookeeper.operations
Class ExistenceChangedOperation
java.lang.Object
org.apache.camel.component.zookeeper.operations.ZooKeeperOperation<ResultType>
org.apache.camel.component.zookeeper.operations.FutureEventDrivenOperation<String>
org.apache.camel.component.zookeeper.operations.ExistenceChangedOperation
- All Implemented Interfaces:
- WatchedEventProvider, org.apache.zookeeper.Watcher
public class ExistenceChangedOperation
- extends FutureEventDrivenOperation<String>
DataChangedOperation
is an watch driven operation. It will wait
for an watched event indicating that a given node has been created or
deleted.
Nested classes/interfaces inherited from interface org.apache.zookeeper.Watcher |
org.apache.zookeeper.Watcher.Event |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ExistenceChangedOperation
public ExistenceChangedOperation(org.apache.zookeeper.ZooKeeper connection,
String znode)
installWatch
protected void installWatch()
- Description copied from class:
FutureEventDrivenOperation
- Install the watcher to receive
WatchedEvent
s. It should use the
appropriate asynchronous ZooKeeper call to do this so as not to block the
route from starting. Once one of the watched for types of event is
received a call is made to getResult, which can use the appropriate
synchronous call to retrieve the actual data.
- Specified by:
installWatch
in class FutureEventDrivenOperation<String>
getResult
public OperationResult<String> getResult()
- Description copied from class:
ZooKeeperOperation
- Gets the result of this zookeeper operation, i.e. some data and the
associated node stats
- Specified by:
getResult
in class ZooKeeperOperation<String>
Apache Camel