ilog.views.util.servlet.tiling

Class IlvDefaultFileTileCache

java.lang.Object

ilog.views.util.servlet.tiling.IlvDefaultFileTileCache

public class IlvDefaultFileTileCache
extends Object

A IlvDefaultFileTileCache manages a set of tiles saved on disk. The cache size is limited to a maximum disk space. When the maximum size is reached, the size is decreased by removing older files. Older files are removed until the minimum size is reached.

Since:

JViews 8.0

Constructor Summary

Constructors

Constructor and Description
IlvDefaultFileTileCache() Constructs a IlvDefaultFileTileCache with a maximum size of 5 mega bytes and a releasable size of 1 mega bytes.
IlvDefaultFileTileCache(long maxSize, long freeSize) Constructs a IlvDefaultFileTileCache specifying the size parameters of the cache.

Method Summary

Modifier and Type	Method and Description
void	clear() Clear the cache by removing all the registered files.
long	getCurrentSize() Returns the current size of this file cache
void	objectAccessed(Object o) Tells the cache that this file has been accessed.
void	objectAdded(Object o) Add a file to this cache.
void	stats() Logs some infos about the cache.

Methods inherited from class java.lang.Object

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

Constructor Detail

IlvDefaultFileTileCache

public IlvDefaultFileTileCache()

Constructs a IlvDefaultFileTileCache with a maximum size of 5 mega bytes and a releasable size of 1 mega bytes.

IlvDefaultFileTileCache

public IlvDefaultFileTileCache(long maxSize,
                               long freeSize)

Constructs a IlvDefaultFileTileCache specifying the size parameters of the cache.

Parameters:

maxSize - The maximum size in bytes.

freeSize - The size in bytes that will be released when the cache is full.

Method Detail

objectAdded

public void objectAdded(Object o)

Add a file to this cache. If the maximum size is reached, older files are deleted until the minimum size is reached.

Parameters:

o - The file to add to this cache.

objectAccessed

public void objectAccessed(Object o)

Tells the cache that this file has been accessed. The setLastModified is set to System.currentTimeMillis().

Parameters:

o - The accessed object.

stats

public void stats()

Logs some infos about the cache.

clear

public void clear()

Clear the cache by removing all the registered files.

getCurrentSize

public long getCurrentSize()

Returns the current size of this file cache

Returns:

the total size of files in this cache, in bytes.