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## org.w3c.www.protocol.http.cache
Class CacheSweeper

    java.lang.Object
      |
      +--java.lang.Thread
            |
            +--org.w3c.www.protocol.http.cache.CacheSweeper

public class CacheSweeper
extends java.lang.Thread

Fields inherited from class java.lang.Thread
`MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY`

Constructor Summary
`CacheSweeper(CacheFilter filter)`

Method Summary
`boolean` | `checkInvalid(CachedResource r, int mingen)` Should the given resource stay in the cache now.
`void` | `garbageCollect()` Run the garbage collector.
`void` | `run()`
`void` | `signal()`
`protected void` | `updateGeneration(CachedResource resource, int from, int to)` Move the given resource from one generation to another.
`void` | `waitSignal()`

Methods inherited from class java.lang.Thread
`activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getName, getPriority, getThreadGroup, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setName, setPriority, sleep, sleep, start, stop, stop, suspend, toString, yield`

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

Constructor Detail

### CacheSweeper

    public CacheSweeper(CacheFilter filter)

Method Detail

### signal

    public void signal()

### waitSignal

    public void waitSignal()

### checkInvalid

    public boolean checkInvalid(CachedResource r,
                                int mingen)

  Should the given resource stay in the cache now. This method just checks against generation numbers to decide wether the resource should stay or not. It's likely that this method will improve over time (to handle disconnected caching, etc).
  Parameters:
    `r` - The resource to check.
    `mingen` - The recommended generation for that resource to stay in.
  Returns:
    A boolean, true if the resource should stay, false if it should leave.

### updateGeneration

    protected void updateGeneration(CachedResource resource,
                                    int from,
                                    int to)

  Move the given resource from one generation to another.
  Parameters:
    `resource` - The cached resource whose generation is about to change.
    `from` - The from generation.
    `to` - The to generation.

### garbageCollect

    public void garbageCollect()

  Run the garbage collector.

### run

    public void run()

  Overrides:
    run in class java.lang.Thread

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