org.objectweb.cjdbc.common.monitor
Class AbstractDataCollector

java.lang.Object
  org.objectweb.cjdbc.common.monitor.AbstractDataCollector

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

AbstractBackendDataCollector, AbstractCacheStatsDataCollector, AbstractClientDataCollector, AbstractControllerDataCollector, AbstractSchedulerDataCollector, AbstractVirtualDatabaseDataCollector

public abstract class AbstractDataCollector

extends java.lang.Object

implements java.io.Serializable

This defines the abstract hierachy to collect monitoring information. All monitored information from the controller should extends this class. collectValue can therefore NOT be called directly on the client side. Instead, the client should be only given the returned result.

Author:

Nicolas Modrzyk

See Also:

Serialized Form

Field Summary

protected java.lang.Object

controller

Constructor Summary

AbstractDataCollector()

Method Summary

abstract long	collectValue() This is used on the controller side to collect information
abstract java.lang.String	getDescription() Get a string description for this collector
abstract java.lang.String	getTargetName() Return the name of the target of this collector
void	setController(java.lang.Object controller) associated a controller to this data collector

Methods inherited from class java.lang.Object

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

Field Detail

controller

protected transient java.lang.Object controller

Constructor Detail

AbstractDataCollector

public AbstractDataCollector()

Method Detail

collectValue

public abstract long collectValue()
                           throws DataCollectorException

This is used on the controller side to collect information

Returns:

the value collected by this collectorsardes@inrialpes.fr

Throws:

DataCollectorException - if fails to collect the information

getDescription

public abstract java.lang.String getDescription()

Get a string description for this collector

Returns:

translated string

getTargetName

public abstract java.lang.String getTargetName()

Return the name of the target of this collector

Returns:

target name

setController

public void setController(java.lang.Object controller)

associated a controller to this data collector

Parameters:

controller - to associate