org.compass.core.lucene.engine.store.localcache
Class MemoryDirectoryCache

java.lang.Object
  org.apache.lucene.store.Directory
      org.compass.core.lucene.engine.store.localcache.MemoryDirectoryCache

All Implemented Interfaces:

DirectoryWrapper

public class MemoryDirectoryCache
extends Directory
implements DirectoryWrapper

Evictable Memory based directory cache wrapping the actual Lucene Directory the index uses. Accepts connection string parameters: bucketSize which is the size of each bucket entry (defaults to 1024 bytes), size which controls the maximum amount of memory that will be taken by the cache before entries will start to be evicted (defaults to 64m), and cacheFileNames that controls if file names will try to be cached as well (defaults to true).

Author:

kimchy

Field Summary

Fields inherited from class org.apache.lucene.store.Directory

lockFactory

Constructor Summary

MemoryDirectoryCache(String connectionString, Directory dir, LocalCacheManager localCacheManager)

Method Summary

void	clearLock(String name)
void	clearWrapper()
void	close()
IndexOutput	createOutput(String name)
void	deleteFile(String name)
boolean	fileExists(String name)
long	fileLength(String name)
long	fileModified(String name)
int	getBucketSize()
LockFactory	getLockFactory()
String	getLockID()
Directory	getWrappedDirectory()
String[]	list()
Lock	makeLock(String name)
IndexInput	openInput(String name)
IndexInput	openInput(String name, int bufferSize)
void	renameFile(String from, String to)
void	setLockFactory(LockFactory lockFactory)
void	touchFile(String name)

Methods inherited from class org.apache.lucene.store.Directory

copy, ensureOpen, sync

Methods inherited from class java.lang.Object

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

Constructor Detail

MemoryDirectoryCache

public MemoryDirectoryCache(String connectionString,
                            Directory dir,
                            LocalCacheManager localCacheManager)

Method Detail

getBucketSize

public int getBucketSize()

getWrappedDirectory

public Directory getWrappedDirectory()

Specified by:

getWrappedDirectory in interface DirectoryWrapper

clearWrapper

public void clearWrapper()
                  throws IOException

Specified by:

clearWrapper in interface DirectoryWrapper

Throws:

IOException

list

public String[] list()
              throws IOException

Specified by:

list in class Directory

Throws:

IOException

fileExists

public boolean fileExists(String name)
                   throws IOException

Specified by:

fileExists in class Directory

Throws:

IOException

fileModified

public long fileModified(String name)
                  throws IOException

Specified by:

fileModified in class Directory

Throws:

IOException

touchFile

public void touchFile(String name)
               throws IOException

Specified by:

touchFile in class Directory

Throws:

IOException

deleteFile

public void deleteFile(String name)
                throws IOException

Specified by:

deleteFile in class Directory

Throws:

IOException

renameFile

public void renameFile(String from,
                       String to)
                throws IOException

Specified by:

renameFile in class Directory

Throws:

IOException

fileLength

public long fileLength(String name)
                throws IOException

Specified by:

fileLength in class Directory

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in class Directory

Throws:

IOException

makeLock

public Lock makeLock(String name)

Overrides:

makeLock in class Directory

clearLock

public void clearLock(String name)
               throws IOException

Overrides:

clearLock in class Directory

Throws:

IOException

setLockFactory

public void setLockFactory(LockFactory lockFactory)

Overrides:

setLockFactory in class Directory

getLockFactory

public LockFactory getLockFactory()

Overrides:

getLockFactory in class Directory

getLockID

public String getLockID()

Overrides:

getLockID in class Directory

createOutput

public IndexOutput createOutput(String name)
                         throws IOException

Specified by:

createOutput in class Directory

Throws:

IOException

openInput

public IndexInput openInput(String name)
                     throws IOException

Specified by:

openInput in class Directory

Throws:

IOException

openInput

public IndexInput openInput(String name,
                            int bufferSize)
                     throws IOException

Overrides:

openInput in class Directory

Throws:

IOException