org.neo4j.ext.udc.impl
Class UdcExtensionImpl

java.lang.Object
  org.neo4j.helpers.Service
      org.neo4j.kernel.KernelExtension<UdcTimerTask>
          org.neo4j.ext.udc.impl.UdcExtensionImpl

All Implemented Interfaces:

UdcProperties

public class UdcExtensionImpl
extends KernelExtension<UdcTimerTask>
implements UdcProperties

Kernel extension for UDC, the Usage Data Collector. The UDC runs as a background daemon, waking up once a day to collect basic usage information about a long running graph database.

The first update is delayed to avoid needless activity during integration testing and short-run applications. Subsequent updates are made at regular intervals. Both times are specified in milliseconds.

Nested Class Summary

Nested classes/interfaces inherited from class org.neo4j.helpers.Service

Service.CaseInsensitiveService, Service.Implementation

Field Summary

static String

UDC_SOURCE_DISTRIBUTION_KEY

Fields inherited from interface org.neo4j.ext.udc.UdcProperties

FIRST_DELAY_CONFIG_KEY, INTERVAL_CONFIG_KEY, UDC_DISABLE_KEY, UDC_HOST_ADDRESS_KEY, UDC_SOURCE_KEY

Constructor Summary

UdcExtensionImpl()
No-arg constructor, sets the extension key to "kernel udc".

Method Summary

protected UdcTimerTask	load(KernelData kernel) Load this extension for a particular Neo4j Kernel.
protected void	unload(UdcTimerTask task)

Methods inherited from class org.neo4j.kernel.KernelExtension

agentArgument, agentLoad, agentVisit, equals, getState, hashCode, isLoaded, loadAgent, loadAgent, loadConfiguration

Methods inherited from class org.neo4j.helpers.Service

load, load, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

UDC_SOURCE_DISTRIBUTION_KEY

public static final String UDC_SOURCE_DISTRIBUTION_KEY

See Also:

Constant Field Values

Constructor Detail

UdcExtensionImpl

public UdcExtensionImpl()

No-arg constructor, sets the extension key to "kernel udc".

Method Detail

load

protected UdcTimerTask load(KernelData kernel)

Description copied from class: KernelExtension

Load this extension for a particular Neo4j Kernel.

Specified by:

load in class KernelExtension<UdcTimerTask>

unload

protected void unload(UdcTimerTask task)

Overrides:

unload in class KernelExtension<UdcTimerTask>