Module org.apache.jena.tdb

Package org.apache.jena.tdb1.base.block

Class BlockMgrFactory

java.lang.Object

org.apache.jena.tdb1.base.block.BlockMgrFactory

public class BlockMgrFactory
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static boolean	AddTracker

Constructor Summary

Constructors

Constructor	Description
BlockMgrFactory()

Method Summary

Modifier and Type	Method	Description
static BlockMgr	addCache(BlockMgr blockMgr, int readBlockCacheSize, int writeBlockCacheSize)	Add a caching layer to a BlockMgr.
static BlockMgr	addCache(BlockMgr blockMgr, FileSet fileSet, FileMode fileMode, int readBlockCacheSize, int writeBlockCacheSize)	Add a caching layer to a BlockMgr if appropriate.
static BlockMgr	create(FileSet fileSet, String ext, int blockSize, int readBlockCacheSize, int writeBlockCacheSize)
static BlockMgr	create(FileSet fileSet, String ext, BlockParams params)
static BlockMgr	createFile(String filename, BlockParams params)	Create a BlockMgr backed by a real file
static BlockMgr	createFile(String filename, FileMode fileMode, int blockSize, int readBlockCacheSize, int writeBlockCacheSize)	Create a BlockMgr backed by a real file
static BlockMgr	createMem(String indexName, int blockSize)	Create an in-memory block manager
static BlockMgr	createMMapFile(String filename, int blockSize)	Create a NIO Block Manager
static BlockMgr	createStdFile(String filename, int blockSize, int readBlockCacheSize, int writeBlockCacheSize)	Create a Block Manager using direct access (and a cache)
static BlockMgr	createStdFileNoCache(String filename, int blockSize)	Create a Block Manager using direct access, no caching, no nothing.
static BlockMgr	tracker(BlockMgr blockMgr)

Methods inherited from class java.lang.Object

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

Field Details

AddTracker

public static boolean AddTracker

Constructor Details

BlockMgrFactory

public BlockMgrFactory()

Method Details

tracker

public static BlockMgr tracker(BlockMgr blockMgr)

create

public static BlockMgr create(FileSet fileSet,
 String ext,
 BlockParams params)

create

public static BlockMgr create(FileSet fileSet,
 String ext,
 int blockSize,
 int readBlockCacheSize,
 int writeBlockCacheSize)

createMem

public static BlockMgr createMem(String indexName,
 int blockSize)

Create an in-memory block manager

createFile

public static BlockMgr createFile(String filename,
 BlockParams params)

Create a BlockMgr backed by a real file

createFile

public static BlockMgr createFile(String filename,
 FileMode fileMode,
 int blockSize,
 int readBlockCacheSize,
 int writeBlockCacheSize)

Create a BlockMgr backed by a real file

createMMapFile

public static BlockMgr createMMapFile(String filename,
 int blockSize)

Create a NIO Block Manager

createStdFile

public static BlockMgr createStdFile(String filename,
 int blockSize,
 int readBlockCacheSize,
 int writeBlockCacheSize)

Create a Block Manager using direct access (and a cache)

createStdFileNoCache

public static BlockMgr createStdFileNoCache(String filename,
 int blockSize)

Create a Block Manager using direct access, no caching, no nothing.

addCache

public static BlockMgr addCache(BlockMgr blockMgr,
 int readBlockCacheSize,
 int writeBlockCacheSize)

Add a caching layer to a BlockMgr.

This does not make sense for memory BlockMgr or for memory mapper files. This function always add the cache.

See Also:

• addCache(BlockMgr, FileSet, FileMode, int, int)

addCache

public static BlockMgr addCache(BlockMgr blockMgr,
 FileSet fileSet,
 FileMode fileMode,
 int readBlockCacheSize,
 int writeBlockCacheSize)

Add a caching layer to a BlockMgr if appropriate. This does not make sense for memory BlockMgr or for memory mapper files. These are skipped.