com.orientechnologies.jdo
Class oCacheManager

java.lang.Object
  com.orientechnologies.jdo.oCacheManager

All Implemented Interfaces:

java.io.Serializable

public class oCacheManager

extends java.lang.Object

implements java.io.Serializable

Handle the cache for persistent objects. The cache is resident in the client side and handle locking of objects between client and Dynamic Server component (in the Enterprise Edition) and between PersistenceManagers. It works as Singleton, instanced at startup.

NOTE: Internal use only, JDO Applications must not use this class directly.

See Also:

Serialized Form

Field Summary

static int	OCACHE_ALLUSED
static int	OCACHE_DEFAULTSIZE
static int	OCACHE_ONLYPINNED

Constructor Summary

protected

oCacheManager()

Method Summary

void	addAvailableObject(oOID iOid, oBinary iObject, boolean iPinned)
void	addObject(oOID iOid, oBinary iObject, boolean iPinned, oTransaction iTx)
void	close()
static void	createInstance()
static void	destroyInstance()
java.util.HashMap	getActiveItems()
int	getCachePolicy()
static oCacheManager	getInstance()
java.util.HashMap	getPinnedItems()
java.util.ArrayList	getPinnedPriority()
int	getSize()
java.util.HashMap	getUnpinnedItems()
java.util.ArrayList	getUnpinnedPriority()
void	lockObject(oOID iOid, oTransaction iTx)
void	releaseObjectsOfDatabase(short iDbId, oTransaction iTx)
void	releaseObjectsOfTransaction(oTransaction iTx)
void	removeObject(oOID iOid, oTransaction iTx)
oBinary	requestObject(oOID iOid, oTransaction iTx)
void	setCachePolicy(int iPolicy)
void	updateObject(oOID iOid, oBinary iObject, oTransaction iTx)

Methods inherited from class java.lang.Object

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

Field Detail

OCACHE_DEFAULTSIZE

public static final int OCACHE_DEFAULTSIZE

See Also:

Constant Field Values

OCACHE_ONLYPINNED

public static final int OCACHE_ONLYPINNED

See Also:

Constant Field Values

OCACHE_ALLUSED

public static final int OCACHE_ALLUSED

See Also:

Constant Field Values

Constructor Detail

oCacheManager

protected oCacheManager()

Method Detail

close

public void close()

getSize

public int getSize()

setCachePolicy

public void setCachePolicy(int iPolicy)

getCachePolicy

public int getCachePolicy()

addObject

public void addObject(oOID iOid,
                      oBinary iObject,
                      boolean iPinned,
                      oTransaction iTx)

addAvailableObject

public void addAvailableObject(oOID iOid,
                               oBinary iObject,
                               boolean iPinned)

updateObject

public void updateObject(oOID iOid,
                         oBinary iObject,
                         oTransaction iTx)
                  throws oObjectNotUpdatedException,
                         oObjectNotFoundException

Throws:

oObjectNotUpdatedException

oObjectNotFoundException

requestObject

public oBinary requestObject(oOID iOid,
                             oTransaction iTx)
                      throws oObjectLockedException,
                             oObjectNotInsertedException

Throws:

oObjectLockedException

oObjectNotInsertedException

lockObject

public void lockObject(oOID iOid,
                       oTransaction iTx)
                throws oObjectLockedException,
                       oObjectNotLockedException,
                       oObjectNotFoundException

Throws:

oObjectLockedException

oObjectNotLockedException

oObjectNotFoundException

removeObject

public void removeObject(oOID iOid,
                         oTransaction iTx)
                  throws oObjectNotReleasedException,
                         oObjectNotFoundException

Throws:

oObjectNotReleasedException

oObjectNotFoundException

releaseObjectsOfDatabase

public void releaseObjectsOfDatabase(short iDbId,
                                     oTransaction iTx)

releaseObjectsOfTransaction

public void releaseObjectsOfTransaction(oTransaction iTx)

createInstance

public static void createInstance()

destroyInstance

public static void destroyInstance()

getInstance

public static oCacheManager getInstance()

getActiveItems

public java.util.HashMap getActiveItems()

getPinnedItems

public java.util.HashMap getPinnedItems()

getPinnedPriority

public java.util.ArrayList getPinnedPriority()

getUnpinnedPriority

public java.util.ArrayList getUnpinnedPriority()

getUnpinnedItems

public java.util.HashMap getUnpinnedItems()