DO NOT REPLY [Bug 35838] - Java NIO patch against Lucene 1.9

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http://issues.apache.org/bugzilla/show_bug.cgi?id=35838





------- Additional Comments From clamprecht@gmail.com  2005-07-24 05:28 -------
Created an attachment (id=15757)
 --> (http://issues.apache.org/bugzilla/attachment.cgi?id=15757&action=view)
Concurrency and NIO patch for lucene SVN trunk


NioFile: new class
NioFSDirectory: new class, extends FSDirectory, uses java's NIO classes

FSDirectory - changes for NioFSDirectory
* made init() method protected so NioFSDirectory can call it

IndexInput - changes for NioFSDirectory
* add readBytes() method that takes a position while preserving the
IndexInput's position (overridden in NioInputStream)


CONCURRENCY IMPROVEMENTS
------------------------
FieldsReader - concurrency improvements
* add and use ThreadStream inner class for istream and fstream (ThreadLocal
variables)

CompoundFileReader - concurrency improvements
* remove synchronized block in readInternal().	The sychronization is now in
IndexInput implementation.
  This allows subclasses (such as NioFSDirectory.NioIndexInput) to NOT use
sychronized blocks for better concurrency.
	  
SegmentReader - concurrency improvement
* removed synchronized from isDeleted() by getting a copy of the reference
instead


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