CachedObject (lecousin.net Java core framework 0.16.2 API)

java.lang.Object
- net.lecousin.framework.memory.CachedObject<T>

Type Parameters:

T - type of object cached

All Implemented Interfaces:

CacheManager.CachedData
```
public abstract class CachedObject<T>
extends Object
implements CacheManager.CachedData
```
Base class for implementing a cached data that register its users.

Field Summary

Fields
Modifier and Type Field and Description

protected long expiration

protected long lastUsage

protected T object

protected int usage

protected ArrayList<Object> users

Fields
Modifier and Type	Field and Description
`protected long`	`expiration`
`protected long`	`lastUsage`
`protected T`	`object`
`protected int`	`usage`
`protected ArrayList<Object>`	`users`

Constructor Summary

Constructors
Constructor and Description

CachedObject(T object, long expiration)
Constructor.

Constructors
Constructor and Description
`CachedObject(T object, long expiration)` Constructor.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`int`	`cachedDataCurrentUsage()` Return the number of clients currently using this data.
`long`	`cachedDataLastUsage()` Return the timestamp of the last time this data has been used.
`void`	`close()` Close this cached data, and release any resource of it.
`protected abstract void`	`closeCachedObject(T object)`
`T`	`get()`
`long`	`getExpiration()`
`long`	`getLastUsage()`
`int`	`getUsage()`
`void`	`release(Object user)` Remove the given object as user of this cached data.
`void`	`use(Object user)` Add the given object as user of this cached data.

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

- Field Detail
  - object
```
protected T object
```
  - usage
```
protected int usage
```
  - expiration
```
protected long expiration
```
  - lastUsage
```
protected long lastUsage
```
  - users
```
protected ArrayList<Object> users
```
- Constructor Detail
  - CachedObject
```
public CachedObject(T object,
                    long expiration)
```
    Constructor.
- Method Detail
  - get
```
public T get()
```
  - use
```
public void use(Object user)
```
    Add the given object as user of this cached data.
  - release
```
public void release(Object user)
```
    Remove the given object as user of this cached data.
  - getUsage
```
public int getUsage()
```
  - getLastUsage
```
public long getLastUsage()
```
  - getExpiration
```
public long getExpiration()
```
  - close
```
public void close()
```
    Close this cached data, and release any resource of it.
  - closeCachedObject
```
protected abstract void closeCachedObject(T object)
```
  - cachedDataCurrentUsage
```
public int cachedDataCurrentUsage()
```
    Description copied from interface: CacheManager.CachedData
    
    Return the number of clients currently using this data.
    
    Specified by:
    
    cachedDataCurrentUsage in interface CacheManager.CachedData
  - cachedDataLastUsage
```
public long cachedDataLastUsage()
```
    Description copied from interface: CacheManager.CachedData
    
    Return the timestamp of the last time this data has been used.
    
    Specified by:
    
    cachedDataLastUsage in interface CacheManager.CachedData

Class CachedObject<T>

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

object

usage

expiration

lastUsage

users

Constructor Detail

CachedObject

Method Detail

get

use

release

getUsage

getLastUsage

getExpiration

close

closeCachedObject

cachedDataCurrentUsage

cachedDataLastUsage