| java.lang.Object
 org.w3c.www.protocol.http.cache.CacheGeneration
| CacheGeneration | | public class CacheGeneration implements LRUAble(Code) | | |
| prev | | protected LRUAble prev(Code) | | LRU management - previous entry.
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| addResource | | public synchronized boolean addResource(CachedResource cr, long size, long oldsize)(Code) | | Adds this resource, if possible
cr, the candidate. size, the size of the candidate. a boolean, true if this resource has been cached |
| clean | | public void clean()(Code) | | Clean this generation.
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| collectSpace | | public long collectSpace(long size, boolean check)(Code) | | will garbage collect up to "size" bytes in this generation.
WARNING: this is not synchronized, use with caution!
long the number of bytes to be collected check, a boolean, used to validate or not the resource beforedeleting them (ie: delete only invalid resources) a long, the number of bytes savedfrom disk afterward using delete. |
| containsResource | | public synchronized boolean containsResource(String url)(Code) | | Check if a resource has been cached in this generation
Parameters:
url - the resource url a boolean |
| copyInto | | protected synchronized void copyInto(CacheGeneration gen)(Code) | | copy the content of the generation here
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| deleteGenerationFile | | protected void deleteGenerationFile()(Code) | | delete the serialized resource file from the disk
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| deleteStored | | public long deleteStored(CachedResource cr)(Code) | | Deletes a resource from the "to be deleted" vector
it updates also the number of bye stored in this generation
the number of bytes saved. |
| emptyGeneration | | protected long emptyGeneration()(Code) | | empty this generation
a long, the number of bytes saved |
| getByteLimit | | public long getByteLimit()(Code) | | Get the bytecount limit for this generation
a long, the maximum number of bytes |
| getCRCount | | public int getCRCount()(Code) | | Get the current number of resource loaded.
an long |
| getCachedByteCount | | public long getCachedByteCount()(Code) | | Give the acual occupation level of this generation
a long, the number of bytes of this generation |
| getCachedResources | | public Enumeration getCachedResources()(Code) | | Get the CachedResource of this generation (except the "to be
deleted" resources)
an Enumeration of CachedResource |
| getDeletedResources | | public Enumeration getDeletedResources()(Code) | | get the deleted but still stored resource
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| getFiles | | public synchronized Enumeration getFiles()(Code) | | Get all the files handled by this generation
an enumeration of File |
| getFillRatio | | public float getFillRatio()(Code) | | Give the fill ratio for the cached resources
a float between 0 and 1 |
| getGenerationFile | | public File getGenerationFile()(Code) | | get the generation file
a File |
| getId | | public int getId()(Code) | | Get the ID of this generation
an int, the generation number |
| getNext | | public LRUAble getNext()(Code) | | LRU management - Get next node.
A CacheGeneration instance. |
| getPrev | | public LRUAble getPrev()(Code) | | LRU management - Get previous node.
A CacheGeneration instance. |
| getStoredByteCount | | public long getStoredByteCount()(Code) | | Give the acual storeage occupation level of this generation
a long, the number of bytes of this generation |
| isLoaded | | public boolean isLoaded()(Code) | | Is the generation loaded?
a boolean |
| isSaved | | public boolean isSaved()(Code) | | Is the generation saved?
a boolean |
| loadCachedResource | | protected void loadCachedResource(CachedResource cr)(Code) | | Load a CachedResource in this generation. (to be used only at
generation loading). This method load only valid cachedresource.
Check if the associated file exists and has the right size.
Parameters:
CachedResource - the CachedResource to load. |
| lookupResource | | public synchronized CachedResource lookupResource(String url)(Code) | | Get the CachedResource relative to the given URL.
Parameters:
url - the URL of the CachedResource to find a CachedResource or null. |
| removeResource | | public synchronized long removeResource(String url) throws NoSuchResourceException(Code) | | Remove the resource from the generation (but don't delete it).
Parameters:
cr - the CachedResource to remove. the number of byte saved
exception:
NoSuchResourceException - if this resource was not in this generation |
| setByteLimit | | public synchronized void setByteLimit(long newlimit)(Code) | | Set the new bytecount limit, not that it may perform a cleanup
if necessary.
long, the new maximum number of bytes |
| setDescription | | protected void setDescription(LookupTable tables)(Code) | | Set this Generation as a description (update the saved and loaded
status)
Parameters:
tables - the LookupTables containing attribute descriptions |
| setGenerationFile | | public void setGenerationFile(File generationFile)(Code) | | set the file where the generation is stored
Parameters:
generationFile - the file |
| setId | | public synchronized void setId(int id)(Code) | | Set the ID of this generation
Useful to reuse generation
Parameters:
an - integer, the new generation number |
| setLoaded | | protected void setLoaded(boolean loaded)(Code) | | Set the generation as loaded or unloaded
Parameters:
loaded - the new loaded flag |
| setNext | | public synchronized void setNext(LRUAble next)(Code) | | LRU management - Set next node.
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| setPrev | | public synchronized void setPrev(LRUAble prev)(Code) | | LRU management - Set previous node.
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| setSaved | | protected void setSaved(boolean saved)(Code) | | Set the generation as saved or not.
Parameters:
saved - a boolean |
| unload | | public void unload()(Code) | | Unload the generation, transform CachedResources to descriptions.
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