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Java Source Code / Java Documentation » Ajax » zk » org.zkoss.util.resource

Source Cross Reference

Class Diagram

Java Document (Java Doc)

java.lang .Object

org.zkoss.util .CacheMap

org.zkoss.util.resource .ResourceCache

ResourceCache

public class ResourceCache extends CacheMap (Code)

Used to cache resouces. To use this class, you have to implement Loader and then ResourceCache will use it to check whether a resource is gone, modified and load the resource.

Unlike CacheMap , it is thread-safe.

The default check period depends on the system propety called org.zkoss.util.resource.checkPeriod (unit: second). If not specified, 5 seconds are assumed
author:
tomyeh

Field Summary
final protected Loader	_loader The loader.

Constructor Summary
public	ResourceCache(Loader loader) Constructor.
public	ResourceCache(Loader loader, int initsz) Constructor.

Method Summary
public void	clear() It is OK to clear up all cached resources if you don't want to cache it.
public Object	get(Object src) Returns the resource, or null if not found.
public int	getCheckPeriod() Returns how often to check (unit=milliseconds).
public Loader	getLoader() Returns the loader.
public Object	put(Object src, Object val) Don't use it.
public Object	remove(Object src) It is OK to remove the resource if you don't want to cache it.
public ResourceCache	setCheckPeriod(int checkPeriod) Sets how often to check (unit=milliseconds).

Field Detail

_loader
final protected Loader _loader(Code)
	The loader.

Constructor Detail

ResourceCache
public ResourceCache(Loader loader)(Code)
	Constructor. Parameters: loader - the loader to load resource

ResourceCache
public ResourceCache(Loader loader, int initsz)(Code)
	Constructor. Parameters: loader - the loader to load resource Parameters: initsz - the initial size of the map

Method Detail

clear
public void clear()(Code)
	It is OK to clear up all cached resources if you don't want to cache it. It is thread safe.

get
public Object get(Object src)(Code)
	Returns the resource, or null if not found.

getCheckPeriod
public int getCheckPeriod()(Code)
	Returns how often to check (unit=milliseconds). Default: 300000

getLoader
public Loader getLoader()(Code)
	Returns the loader.

put
public Object put(Object src, Object val)(Code)
	Don't use it.

remove
public Object remove(Object src)(Code)
	It is OK to remove the resource if you don't want to cache it. It is thread safe.

setCheckPeriod
public ResourceCache setCheckPeriod(int checkPeriod)(Code)
	Sets how often to check (unit=milliseconds). this object

Fields inherited from org.zkoss.util.CacheMap

final public static int DEFAULT_MAXSIZE(Code)(Java Doc)
final protected static int EXPUNGE_CONTINUE(Code)(Java Doc)
final protected static int EXPUNGE_NO(Code)(Java Doc)
final protected static int EXPUNGE_STOP(Code)(Java Doc)
final protected static int EXPUNGE_YES(Code)(Java Doc)

Methods inherited from org.zkoss.util.CacheMap

protected int canExpunge(Value v)(Code)(Java Doc)
public void clear()(Code)(Java Doc)
public Object clone()(Code)(Java Doc)
public boolean containsKey(Object key)(Code)(Java Doc)
public boolean containsValue(Object value)(Code)(Java Doc)
public Set entrySet()(Code)(Java Doc)
public boolean equals(Object o)(Code)(Java Doc)
public Object get(Object key)(Code)(Java Doc)
public int getLifetime()(Code)(Java Doc)
public int getMaxSize()(Code)(Java Doc)
public Object getWithoutExpunge(Object key)(Code)(Java Doc)
public int hashCode()(Code)(Java Doc)
public boolean isEmpty()(Code)(Java Doc)
public boolean isEmptyWithoutExpunge()(Code)(Java Doc)
public Set keySet()(Code)(Java Doc)
protected ReferenceQueue newQueue()(Code)(Java Doc)
protected void onExpunge(Value v)(Code)(Java Doc)
public Object put(Object key, Object value)(Code)(Java Doc)
public void putAll(Map map)(Code)(Java Doc)
public Object remove(Object key)(Code)(Java Doc)
public void setLifetime(int lifetime)(Code)(Java Doc)
public void setMaxSize(int maxsize)(Code)(Java Doc)
protected boolean shallExpunge()(Code)(Java Doc)
public int size()(Code)(Java Doc)
public int sizeWithoutExpunge()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
public Collection values()(Code)(Java Doc)

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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