org.objectweb.cjdbc.common.monitor.backend
Class AbstractBackendDataCollector

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

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

ActiveConnectionsCollector, ActiveTransactionCollector, PendingRequestsCollector, ReadRequestsCollector, RequestsCollector, TransactionsCollector, WriteRequestsCollector

public abstract class AbstractBackendDataCollector

extends AbstractDataCollector

Abstract class to factor code for collecting data from backends

Author:

Nicolas Modrzyk

See Also:

Serialized Form

Field Summary

private java.lang.String	backendName
private java.lang.String	virtualDatabaseName

Fields inherited from class org.objectweb.cjdbc.common.monitor.AbstractDataCollector

controller

Constructor Summary

AbstractBackendDataCollector(java.lang.String backendName, java.lang.String virtualDatabaseName)
Create new collector

Method Summary

long	collectValue() This is used on the controller side to collect information
java.lang.String	getTargetName() Return the name of the target of this collector
abstract long	getValue(java.lang.Object backend) get the proper collected value when we have instace of the backend

Methods inherited from class org.objectweb.cjdbc.common.monitor.AbstractDataCollector

getDescription, setController

Methods inherited from class java.lang.Object

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

Field Detail

backendName

private java.lang.String backendName

virtualDatabaseName

private java.lang.String virtualDatabaseName

Constructor Detail

AbstractBackendDataCollector

public AbstractBackendDataCollector(java.lang.String backendName,
                                    java.lang.String virtualDatabaseName)

Create new collector

Parameters:

backendName - of the backend to get data from

virtualDatabaseName - that contains reference to this backend

Method Detail

collectValue

public long collectValue()
                  throws DataCollectorException

Description copied from class: AbstractDataCollector

This is used on the controller side to collect information

Specified by:

collectValue in class AbstractDataCollector

Returns:

the value collected by this collectorsardes@inrialpes.fr

Throws:

DataCollectorException - if fails to collect the information

See Also:

AbstractDataCollector.collectValue()

getValue

public abstract long getValue(java.lang.Object backend)

get the proper collected value when we have instace of the backend

Parameters:

backend - DatabaseBackend instance

Returns:

collected value

getTargetName

public java.lang.String getTargetName()

Description copied from class: AbstractDataCollector

Return the name of the target of this collector

Specified by:

getTargetName in class AbstractDataCollector

Returns:

target name

See Also:

AbstractDataCollector.getTargetName()