java.lang.Object
- org.apache.naming.resources.ResourceCache

```
public class ResourceCache
extends Object
```
Implements a special purpose cache.

Version:

$Revision: 1.3 $

Author:

Remy Maucherat

Field Summary

Fields
Modifier and Type	Field	Description
`protected long`	`accessCount`	Number of accesses to the cache.
`protected CacheEntry[]`	`cache`	Cache.
`protected int`	`cacheMaxSize`	Max size of resources which will have their content cached.
`protected int`	`cacheSize`	Current cache size in KB.
`protected long`	`desiredEntryAccessRatio`	Entry hit ratio at which an entry will never be removed from the cache.
`protected long`	`hitsCount`	Number of cache hits.
`protected int`	`maxAllocateIterations`	Max amount of removals during a make space.
`protected HashMap<String,CacheEntry>`	`notFoundCache`	Not found cache.
`protected SecureRandom`	`random`	Random generator used to determine elements to free.
`protected int`	`spareNotFoundEntries`	Spare amount of not found entries.

Constructor Summary

Constructors
Constructor Description

ResourceCache()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`allocate(int space)`
`long`	`getAccessCount()`	Return the access count.
`int`	`getCacheMaxSize()`	Return the maximum size of the cache in KB.
`int`	`getCacheSize()`	Return the current cache size in KB.
`long`	`getDesiredEntryAccessRatio()`	Return desired entry access ratio.
`long`	`getHitsCount()`	Return the number of cache hits.
`int`	`getMaxAllocateIterations()`	Return the maximum amount of iterations during a space allocation.
`int`	`getSpareNotFoundEntries()`	Return the amount of spare not found entries.
`void`	`load(CacheEntry entry)`
`CacheEntry`	`lookup(String name)`
`void`	`setCacheMaxSize(int cacheMaxSize)`	Set the maximum size of the cache in KB.
`void`	`setDesiredEntryAccessRatio(long desiredEntryAccessRatio)`	Set the desired entry access ratio.
`void`	`setMaxAllocateIterations(int maxAllocateIterations)`	Set the maximum amount of iterations during a space allocation.
`void`	`setSpareNotFoundEntries(int spareNotFoundEntries)`	Set the amount of spare not found entries.
`boolean`	`unload(String name)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - random
```
protected SecureRandom random
```
    Random generator used to determine elements to free.
  - cache
```
protected CacheEntry[] cache
```
    Cache. Path -> Cache entry.
  - notFoundCache
```
protected HashMap<String,CacheEntry> notFoundCache
```
    Not found cache.
  - cacheMaxSize
```
protected int cacheMaxSize
```
    Max size of resources which will have their content cached.
  - maxAllocateIterations
```
protected int maxAllocateIterations
```
    Max amount of removals during a make space.
  - desiredEntryAccessRatio
```
protected long desiredEntryAccessRatio
```
    Entry hit ratio at which an entry will never be removed from the cache. Compared with entry.access / hitsCount
  - spareNotFoundEntries
```
protected int spareNotFoundEntries
```
    Spare amount of not found entries.
  - cacheSize
```
protected int cacheSize
```
    Current cache size in KB.
  - accessCount
```
protected long accessCount
```
    Number of accesses to the cache.
  - hitsCount
```
protected long hitsCount
```
    Number of cache hits.
- Constructor Detail
  - ResourceCache
```
public ResourceCache()
```
- Method Detail
  - getAccessCount
```
public long getAccessCount()
```
    Return the access count. Note: Update is not synced, so the number may not be completely accurate.
  - getCacheMaxSize
```
public int getCacheMaxSize()
```
    Return the maximum size of the cache in KB.
  - setCacheMaxSize
```
public void setCacheMaxSize(int cacheMaxSize)
```
    Set the maximum size of the cache in KB.
  - getCacheSize
```
public int getCacheSize()
```
    Return the current cache size in KB.
  - getDesiredEntryAccessRatio
```
public long getDesiredEntryAccessRatio()
```
    Return desired entry access ratio.
  - setDesiredEntryAccessRatio
```
public void setDesiredEntryAccessRatio(long desiredEntryAccessRatio)
```
    Set the desired entry access ratio.
  - getHitsCount
```
public long getHitsCount()
```
    Return the number of cache hits. Note: Update is not synced, so the number may not be completely accurate.
  - getMaxAllocateIterations
```
public int getMaxAllocateIterations()
```
    Return the maximum amount of iterations during a space allocation.
  - setMaxAllocateIterations
```
public void setMaxAllocateIterations(int maxAllocateIterations)
```
    Set the maximum amount of iterations during a space allocation.
  - getSpareNotFoundEntries
```
public int getSpareNotFoundEntries()
```
    Return the amount of spare not found entries.
  - setSpareNotFoundEntries
```
public void setSpareNotFoundEntries(int spareNotFoundEntries)
```
    Set the amount of spare not found entries.
  - allocate
```
public boolean allocate(int space)
```
  - lookup
```
public CacheEntry lookup(String name)
```
  - load
```
public void load(CacheEntry entry)
```
  - unload
```
public boolean unload(String name)
```

Class ResourceCache

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

random

cache

notFoundCache

cacheMaxSize

maxAllocateIterations

desiredEntryAccessRatio

spareNotFoundEntries

cacheSize

accessCount

hitsCount

Constructor Detail

ResourceCache

Method Detail

getAccessCount

getCacheMaxSize

setCacheMaxSize

getCacheSize

getDesiredEntryAccessRatio

setDesiredEntryAccessRatio

getHitsCount

getMaxAllocateIterations

setMaxAllocateIterations

getSpareNotFoundEntries

setSpareNotFoundEntries

allocate

lookup

load

unload