net.sf.basedb.util
Class StaticCache.LockSafeInputStream

java.lang.Object
  java.io.InputStream
      java.io.FilterInputStream
          net.sf.basedb.util.StaticCache.LockSafeInputStream

All Implemented Interfaces:

Closeable

Enclosing class:

StaticCache

static class StaticCache.LockSafeInputStream
extends FilterInputStream

A lock-safe input stream that releases the associated read lock when the stream is closed.

NOTE! It is important that we keep a strong reference to the 'key' in this class until the stream is closed, since otherwise the locked entry may be reclaimed by the garbage collector.

Field Summary

private Throwable	calledFrom
private boolean	closed
private String	key
private ReadWriteLock	lock

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

StaticCache.LockSafeInputStream(InputStream in, StaticCache.LockEntry lock)

Method Summary

void	close()
protected void	finalize()
String	toString()

Methods inherited from class java.io.FilterInputStream

available, mark, markSupported, read, read, read, reset, skip

Methods inherited from class java.lang.Object

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

Field Detail

calledFrom

private final Throwable calledFrom

lock

private ReadWriteLock lock

key

private String key

closed

private boolean closed

Constructor Detail

StaticCache.LockSafeInputStream

StaticCache.LockSafeInputStream(InputStream in,
                                StaticCache.LockEntry lock)

Method Detail

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Overrides:

close in class FilterInputStream

Throws:

IOException

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable

toString

public String toString()

Overrides:

toString in class Object