Package de.caluga.morphium.cache

Class MessagingCacheSynchronizer

java.lang.Object

de.caluga.morphium.cache.AbstractCacheSynchronizer<MessagingCacheSyncListener>

de.caluga.morphium.cache.MessagingCacheSynchronizer

All Implemented Interfaces:

MessageListener, MorphiumStorageListener<Object>

public class MessagingCacheSynchronizer
extends AbstractCacheSynchronizer<MessagingCacheSyncListener>
implements MessageListener, MorphiumStorageListener<Object>

User: Stephan Bösebeck Date: 27.05.12 Time: 14:14

Connects to the Messaging system and to morphium. As soon as there is a message coming with name "cacheSync", this is responsible for clearing the local cache for this entity. Messaging used:

• Msg.name == Always cacheSync
• Msg.type == Always multi - more than one node may listen to those messages
• Msg.msg == The messag is the Reason for clearing (remove, store, user interaction...)
• Msg.value == String, name of the class whose cache should be cleared
• Msg.additional == always null
• Msg.ttl == 30 sec - shoule be enought time for the message to be processed by all nodes

Nested Class Summary

Nested classes/interfaces inherited from interface de.caluga.morphium.MorphiumStorageListener

MorphiumStorageListener.UpdateTypes

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CACHE_SYNC_RECORD
static final String	CACHE_SYNC_TYPE

Fields inherited from class de.caluga.morphium.cache.AbstractCacheSynchronizer

listenerForType, listeners, log, morphium

Constructor Summary

Constructors

Constructor	Description
MessagingCacheSynchronizer(Messaging msg, Morphium morphium)

Method Summary

Modifier and Type	Method	Description
void	detach()
void	disableCommitMessages()
void	enableCommitMessages()
void	firePostSendEvent(Class type, Msg m)
void	firePreSendEvent(Class type, Msg m)
boolean	isAttached()
boolean	isCommitMessages()
Msg	onMessage(Messaging msg, Msg m)	process message, send answer if null is returned, no answer is sent
void	postDrop(Morphium m, Class cls)
void	postLoad(Morphium m, Object o)
void	postLoad(Morphium m, List<Object> o)
void	postRemove(Morphium m, Query q)
void	postRemove(Morphium m, Object r)
void	postRemove(Morphium m, List<Object> lst)
void	postStore(Morphium m, Object r, boolean isNew)
void	postStore(Morphium m, Map<Object,Boolean> isNew)
void	postUpdate(Morphium m, Class cls, Enum updateType)
void	preDrop(Morphium m, Class cls)
void	preRemove(Morphium m, Query<Object> q)
void	preRemove(Morphium m, Object r)
void	preStore(Morphium m, Object r, boolean isNew)
void	preStore(Morphium m, Map<Object,Boolean> isNew)
void	preUpdate(Morphium m, Class<?> cls, Enum updateType)
void	sendClearAllMessage(String reason)
void	sendClearMessage(Class type, String reason)
void	sendClearMessage(Class type, String reason, boolean force)	sends message if necessary
void	sendClearMessage(String reason, Map<Object,Boolean> isNew)
void	setCommitMessage(boolean msg)

Methods inherited from class de.caluga.morphium.cache.AbstractCacheSynchronizer

addSyncListener, addSyncListener, firePostClearEvent, firePreClearEvent, removeSyncListener, removeSyncListener

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.caluga.morphium.messaging.MessageListener

markAsProcessedBeforeExec

Field Details

CACHE_SYNC_TYPE

public static final String CACHE_SYNC_TYPE

See Also:

• Constant Field Values

CACHE_SYNC_RECORD

public static final String CACHE_SYNC_RECORD

See Also:

• Constant Field Values

Constructor Details

MessagingCacheSynchronizer

public MessagingCacheSynchronizer(Messaging msg,
 Morphium morphium)

Parameters:

msg - - primary messaging, will attach to and send messages over

morphium - - the underlying morphium instance

Method Details

sendClearMessage

public void sendClearMessage(String reason,
 Map<Object,Boolean> isNew)

sendClearMessage

public void sendClearMessage(Class type,
 String reason)

sendClearMessage

public void sendClearMessage(Class type,
 String reason,
 boolean force)

sends message if necessary

Parameters:

type - - type

reason - - reason

detach

public void detach()

isAttached

public boolean isAttached()

sendClearAllMessage

public void sendClearAllMessage(String reason)

preStore

public void preStore(Morphium m,
 Object r,
 boolean isNew)
              throws MorphiumAccessVetoException

Specified by:

preStore in interface MorphiumStorageListener<Object>

Throws:

MorphiumAccessVetoException

preStore

public void preStore(Morphium m,
 Map<Object,Boolean> isNew)
              throws MorphiumAccessVetoException

Specified by:

preStore in interface MorphiumStorageListener<Object>

Throws:

MorphiumAccessVetoException

postStore

public void postStore(Morphium m,
 Object r,
 boolean isNew)

Specified by:

postStore in interface MorphiumStorageListener<Object>

postStore

public void postStore(Morphium m,
 Map<Object,Boolean> isNew)
               throws MorphiumAccessVetoException

Specified by:

postStore in interface MorphiumStorageListener<Object>

Throws:

MorphiumAccessVetoException

postDrop

public void postDrop(Morphium m,
 Class cls)

Specified by:

postDrop in interface MorphiumStorageListener<Object>

preDrop

public void preDrop(Morphium m,
 Class cls)

Specified by:

preDrop in interface MorphiumStorageListener<Object>

postRemove

public void postRemove(Morphium m,
 Object r)

Specified by:

postRemove in interface MorphiumStorageListener<Object>

postRemove

public void postRemove(Morphium m,
 List<Object> lst)

Specified by:

postRemove in interface MorphiumStorageListener<Object>

firePostSendEvent

public void firePostSendEvent(Class type,
 Msg m)

firePreSendEvent

public void firePreSendEvent(Class type,
 Msg m)
                      throws CacheSyncVetoException

Throws:

CacheSyncVetoException

preRemove

public void preRemove(Morphium m,
 Query<Object> q)
               throws MorphiumAccessVetoException

Specified by:

preRemove in interface MorphiumStorageListener<Object>

Throws:

MorphiumAccessVetoException

preRemove

public void preRemove(Morphium m,
 Object r)
               throws MorphiumAccessVetoException

Specified by:

preRemove in interface MorphiumStorageListener<Object>

Throws:

MorphiumAccessVetoException

postLoad

public void postLoad(Morphium m,
 Object o)
              throws MorphiumAccessVetoException

Specified by:

postLoad in interface MorphiumStorageListener<Object>

Throws:

MorphiumAccessVetoException

postLoad

public void postLoad(Morphium m,
 List<Object> o)
              throws MorphiumAccessVetoException

Specified by:

postLoad in interface MorphiumStorageListener<Object>

Throws:

MorphiumAccessVetoException

preUpdate

public void preUpdate(Morphium m,
 Class<?> cls,
 Enum updateType)
               throws MorphiumAccessVetoException

Specified by:

preUpdate in interface MorphiumStorageListener<Object>

Throws:

MorphiumAccessVetoException

postRemove

public void postRemove(Morphium m,
 Query q)

Specified by:

postRemove in interface MorphiumStorageListener<Object>

postUpdate

public void postUpdate(Morphium m,
 Class cls,
 Enum updateType)

Specified by:

postUpdate in interface MorphiumStorageListener<Object>

onMessage

public Msg onMessage(Messaging msg,
 Msg m)

Description copied from interface: MessageListener

process message, send answer if null is returned, no answer is sent

Specified by:

onMessage in interface MessageListener

disableCommitMessages

public void disableCommitMessages()

enableCommitMessages

public void enableCommitMessages()

setCommitMessage

public void setCommitMessage(boolean msg)

isCommitMessages

public boolean isCommitMessages()