org.equanda.cache
Class EquandaCache<OBJECT>

java.lang.Object
  org.equanda.cache.EquandaCache<OBJECT>

public abstract class EquandaCache<OBJECT>
extends Object

Get an instance of the equanda used instance of the JBoss treecache, used for caching various information

Author:

Joachim Van der Auwera

Field Summary

static int	SEARCH_FIRST_IN_CACHE
static int	SEARCH_FIRST_IN_DB

Constructor Summary

protected

EquandaCache()

Method Summary

OBJECT	get(String key)
protected OBJECT	get(String key, int depth)
protected abstract OBJECT	getObject(String key) Get value from DB when not in cache, should be overwritten by child classes
void	set(String key, OBJECT value)
protected void	setObject(String key, OBJECT value) Set value in DB
OBJECT	update(String key)

Methods inherited from class java.lang.Object

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

Field Detail

SEARCH_FIRST_IN_DB

public static final int SEARCH_FIRST_IN_DB

See Also:

Constant Field Values

SEARCH_FIRST_IN_CACHE

public static final int SEARCH_FIRST_IN_CACHE

See Also:

Constant Field Values

Constructor Detail

EquandaCache

protected EquandaCache()

Method Detail

getObject

protected abstract OBJECT getObject(String key)
                             throws EquandaException

Get value from DB when not in cache, should be overwritten by child classes

Parameters:

key - key

Returns:

value loaded from the non-cache location

Throws:

EquandaException - oops

setObject

protected void setObject(String key,
                         OBJECT value)
                  throws EquandaException

Set value in DB

Parameters:

key - key

value - value

Throws:

EquandaException - problems

get

public OBJECT get(String key)
           throws EquandaException

Throws:

EquandaException

get

protected OBJECT get(String key,
                     int depth)
              throws EquandaException

Throws:

EquandaException

set

public void set(String key,
                OBJECT value)
         throws EquandaException

Throws:

EquandaException

update

public OBJECT update(String key)
              throws EquandaException

Throws:

EquandaException