com.livis.livingtalks.ejb
Class CachingEntityHandler

java.lang.Object
  |
  +--com.livis.livingtalks.ejb.EntityHandler
        |
        +--com.livis.livingtalks.ejb.CachingEntityHandler

Direct Known Subclasses:

CachingAuthorHandler, CachingAuthorshipHandler, CachingBlockHandler, CachingPitemHandler, CachingTalkHandler, CachingTrackHandler, CachingTypeHandler

public abstract class CachingEntityHandler

extends EntityHandler

implements DataHandler

Fields inherited from class com.livis.livingtalks.ejb.EntityHandler

creatorModel, finder1, finder1a, finder2, finderAll, finderByPrimaryKey, getterModel, setterModel

Constructor Summary

protected

CachingEntityHandler(java.lang.String homeName, java.lang.Class homeClass)

Method Summary

java.lang.String	create(AbstractModel model)
java.util.Collection	getKeysAll()
AbstractModel	getShortmodel(java.lang.String key)
java.util.Collection	getShortmodelsAll()
void	invalidateCache()
java.lang.Object	read(java.lang.String key) Read data stored at key.
void	remove(java.lang.String key)
void	setModel(AbstractModel model)
protected abstract WriteThroughCache	sharedCache()
java.lang.String	writeNew(java.lang.String key, java.lang.Object data) Write new data.
void	writeOld(java.lang.String key, java.lang.Object data) Updates old data.

Methods inherited from class com.livis.livingtalks.ejb.EntityHandler

getKeys1, getKeys1a, getKeys2, getModel

Methods inherited from class java.lang.Object

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

Constructor Detail

CachingEntityHandler

protected CachingEntityHandler(java.lang.String homeName,
                               java.lang.Class homeClass)

Method Detail

sharedCache

protected abstract WriteThroughCache sharedCache()

invalidateCache

public void invalidateCache()

getShortmodel

public AbstractModel getShortmodel(java.lang.String key)

Overrides:

getShortmodel in class EntityHandler

setModel

public void setModel(AbstractModel model)
              throws javax.ejb.CreateException

Overrides:

setModel in class EntityHandler

remove

public void remove(java.lang.String key)
            throws com.livis.livingtalks.ejb.RemoveException

Overrides:

remove in class EntityHandler

create

public java.lang.String create(AbstractModel model)
                        throws javax.ejb.CreateException

Overrides:

create in class EntityHandler

getShortmodelsAll

public java.util.Collection getShortmodelsAll()

Overrides:

getShortmodelsAll in class EntityHandler

getKeysAll

public java.util.Collection getKeysAll()

Overrides:

getKeysAll in class EntityHandler

writeNew

public java.lang.String writeNew(java.lang.String key,
                                 java.lang.Object data)
                          throws javax.ejb.CreateException

Description copied from interface: DataHandler

Write new data.

Specified by:

writeNew in interface DataHandler

Tags copied from interface: DataHandler

Parameters:

data - The data to be stored. data must not be null.

key - The key under which the data should be stored. key may be null.

Returns:

the key under which the data finally got stored.

Throws:

CreateException - if key does already exist and no other key was used.

writeOld

public void writeOld(java.lang.String key,
                     java.lang.Object data)
              throws javax.ejb.CreateException

Description copied from interface: DataHandler

Updates old data.

Specified by:

writeOld in interface DataHandler

Tags copied from interface: DataHandler

Parameters:

data - the data to be stored. A value of null will delete the data.

key - The key under which to store the data. key must not be null.

Throws:

CreateException - if key does not exist

read

public java.lang.Object read(java.lang.String key)

Description copied from interface: DataHandler

Read data stored at key.

Specified by:

read in interface DataHandler

Tags copied from interface: DataHandler

Parameters:

key - The key to retrieve the data for. A value of null will return null.

Returns:

The object previously stored, or null if no such data exists.

Throws:

CreateException - if key does not exist