com.alibaba.druid.pool.ha.node

Class PoolUpdater

java.lang.Object

com.alibaba.druid.pool.ha.node.PoolUpdater

All Implemented Interfaces:

Observer

public class PoolUpdater
extends Object
implements Observer

Update the DataSource Connection Pool when notified.

Author:

DigitalSonic

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_INTERVAL

Constructor Summary

Constructors

Constructor and Description
PoolUpdater(HighAvailableDataSource highAvailableDataSource)

Method Summary

Modifier and Type	Method and Description
void	destroy()
HighAvailableDataSource	getHighAvailableDataSource()
int	getIntervalSeconds()
Set<String>	getNodesToDel()
void	init() Create a ScheduledExecutorService to remove unused DataSources.
boolean	isAllowEmptyPool()
void	removeDataSources() Remove unused DataSources.
void	setAllowEmptyPool(boolean allowEmptyPool)
void	setHighAvailableDataSource(HighAvailableDataSource highAvailableDataSource)
void	setIntervalSeconds(int intervalSeconds)
void	update(Observable o, Object arg) Process the given NodeEvent[].

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_INTERVAL

public static final int DEFAULT_INTERVAL

See Also:

Constant Field Values

Constructor Detail

PoolUpdater

public PoolUpdater(HighAvailableDataSource highAvailableDataSource)

Method Detail

init

public void init()

Create a ScheduledExecutorService to remove unused DataSources.

destroy

public void destroy()

update

public void update(Observable o,
                   Object arg)

Process the given NodeEvent[]. Maybe add / delete some nodes.

Specified by:

update in interface Observer

removeDataSources

public void removeDataSources()

Remove unused DataSources.

getHighAvailableDataSource

public HighAvailableDataSource getHighAvailableDataSource()

setHighAvailableDataSource

public void setHighAvailableDataSource(HighAvailableDataSource highAvailableDataSource)

getNodesToDel

public Set<String> getNodesToDel()

getIntervalSeconds

public int getIntervalSeconds()

setIntervalSeconds

public void setIntervalSeconds(int intervalSeconds)

isAllowEmptyPool

public boolean isAllowEmptyPool()

setAllowEmptyPool

public void setAllowEmptyPool(boolean allowEmptyPool)