Package org.apache.jackrabbit.oak.spi.whiteboard

Class AbstractServiceTracker<T>

java.lang.Object

org.apache.jackrabbit.oak.spi.whiteboard.AbstractServiceTracker<T>

Direct Known Subclasses:

DynamicMembershipTracker, ExternalIDPManagerImpl, GCMonitorTracker, JournalPropertyHandlerFactory, SyncManagerImpl, WhiteboardAuthorizableActionProvider, WhiteboardAuthorizableNodeName, WhiteboardEditorProvider, WhiteboardExecutor, WhiteboardIndexEditorProvider, WhiteboardIndexProvider, WhiteboardRestrictionProvider, WhiteboardUserAuthenticationFactory

public abstract class AbstractServiceTracker<T>
extends Object

AbstractServiceTracker is a base class for composite components that dynamically look up the available component services from the whiteboard.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractServiceTracker(@NotNull Class<T> type)
protected	AbstractServiceTracker(@NotNull Class<T> type, @NotNull Map<String,String> filterProperties)

Method Summary

Modifier and Type	Method	Description
protected List<T>	getServices()	Returns all services of type T that are currently available.
void	start(Whiteboard whiteboard)
void	stop()

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractServiceTracker

protected AbstractServiceTracker(@NotNull
                                 @NotNull Class<T> type)

AbstractServiceTracker

protected AbstractServiceTracker(@NotNull
                                 @NotNull Class<T> type,
                                 @NotNull
                                 @NotNull Map<String,String> filterProperties)

Method Detail

start

public void start(Whiteboard whiteboard)

stop

public void stop()

getServices

protected List<T> getServices()

Returns all services of type T that are currently available. This method is intentionally not synchronized to prevent lock contention when accessed frequently in highly concurrent code.

Returns:

currently available services