com.caucho.distcache.jdbc
Class JdbcMnodeStore

java.lang.Object
  com.caucho.server.distcache.MnodeStore
      com.caucho.distcache.jdbc.JdbcMnodeStore

All Implemented Interfaces:

AlarmListener, java.util.EventListener

public class JdbcMnodeStore
extends MnodeStore

Manages backing for the cache map.

Constructor Summary

JdbcMnodeStore(javax.sql.DataSource dataSource, java.lang.String tableName, java.lang.String serverName)

Method Summary

void	close()
void	destroy()
long	getCount()
javax.sql.DataSource	getDataSource() Returns the data source.
java.util.ArrayList<CacheData>	getGlobalUpdates(long updateTime, int offset) Returns the maximum update time on startup
long	getStartupLastUpdateTime() Returns the max update time detected on startup.
java.lang.String	getTableName() Returns the data source.
java.util.ArrayList<CacheData>	getUpdates(long updateTime, int offset) Returns the maximum update time on startup
void	handleAlarm(Alarm alarm) Handles a callback from an alarm.
void	init()
protected void	initDatabase() Create the database, initializing if necessary.
boolean	insert(HashKey id, MnodeValue mnodeUpdate) Stores the data, returning true on success
MnodeEntry	load(HashKey id) Reads the object from the data store.
void	removeExpiredData() Clears the expired data
java.lang.String	toString()
boolean	updateSave(byte[] keyHash, MnodeValue mnodeUpdate) Stores the data, returning true on success
boolean	updateUpdateTime(HashKey id, long itemVersion, long idleTimeout, long updateTime) Updates the update time, returning true on success

Methods inherited from class com.caucho.server.distcache.MnodeStore

getStartupLastUpdateTime, getUpdates

Methods inherited from class java.lang.Object

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

Constructor Detail

JdbcMnodeStore

public JdbcMnodeStore(javax.sql.DataSource dataSource,
                      java.lang.String tableName,
                      java.lang.String serverName)
               throws java.lang.Exception

Throws:

java.lang.Exception

Method Detail

getDataSource

public javax.sql.DataSource getDataSource()

Returns the data source.

Overrides:

getDataSource in class MnodeStore

getTableName

public java.lang.String getTableName()

Returns the data source.

Overrides:

getTableName in class MnodeStore

getStartupLastUpdateTime

public long getStartupLastUpdateTime()

Returns the max update time detected on startup.

Overrides:

getStartupLastUpdateTime in class MnodeStore

init

public void init()
          throws java.lang.Exception

Overrides:

init in class MnodeStore

Throws:

java.lang.Exception

initDatabase

protected void initDatabase()
                     throws java.lang.Exception

Create the database, initializing if necessary.

Overrides:

initDatabase in class MnodeStore

Throws:

java.lang.Exception

close

public void close()

Overrides:

close in class MnodeStore

getUpdates

public java.util.ArrayList<CacheData> getUpdates(long updateTime,
                                                 int offset)

Returns the maximum update time on startup

Overrides:

getUpdates in class MnodeStore

getGlobalUpdates

public java.util.ArrayList<CacheData> getGlobalUpdates(long updateTime,
                                                       int offset)

Returns the maximum update time on startup

load

public MnodeEntry load(HashKey id)

Reads the object from the data store.

Overrides:

load in class MnodeStore

Parameters:

id - the hash identifier for the data

Returns:

true on successful load

insert

public boolean insert(HashKey id,
                      MnodeValue mnodeUpdate)

Stores the data, returning true on success

Overrides:

insert in class MnodeStore

Parameters:

id - the key hash

value - the value hash

idleTimeout - the item's timeout

updateSave

public boolean updateSave(byte[] keyHash,
                          MnodeValue mnodeUpdate)

Stores the data, returning true on success

Overrides:

updateSave in class MnodeStore

Parameters:

id - the key hash

value - the value hash

idleTimeout - the item's timeout

updateUpdateTime

public boolean updateUpdateTime(HashKey id,
                                long itemVersion,
                                long idleTimeout,
                                long updateTime)

Updates the update time, returning true on success

Overrides:

updateUpdateTime in class MnodeStore

Parameters:

id - the key hash

itemVersion - the value version

idleTimeout - the item's timeout

updateTime - the item's timeout

removeExpiredData

public void removeExpiredData()

Clears the expired data

Overrides:

removeExpiredData in class MnodeStore

getCount

public long getCount()

Overrides:

getCount in class MnodeStore

handleAlarm

public void handleAlarm(Alarm alarm)

Description copied from interface: AlarmListener

Handles a callback from an alarm.

Specified by:

handleAlarm in interface AlarmListener

Overrides:

handleAlarm in class MnodeStore

destroy

public void destroy()

Overrides:

destroy in class MnodeStore

toString

public java.lang.String toString()

Overrides:

toString in class MnodeStore