Module org.apache.jena.tdb

Package org.apache.jena.tdb1.mgt

Class TDBSystemInfo

java.lang.Object

org.apache.jena.tdb1.mgt.TDBSystemInfo

All Implemented Interfaces:

TDBSystemInfoMBean

public class TDBSystemInfo
extends Object
implements TDBSystemInfoMBean

Constructor Summary

Constructors

Constructor	Description
TDBSystemInfo()

Method Summary

Modifier and Type	Method	Description
int	getBlockReadCacheSize()	Size of read block cache (32 bit systems only).
int	getBlockSize()	Size, in bytes, of a disk block
int	getBlockWriteCacheSize()	Size of the delayed-write block cache (32 bit systems only) (per file)
int	getNode2NodeIdCacheSize()	Size of Node to NodeId cache.
int	getNodeId2NodeCacheSize()	Size of NodeId to Node cache.
int	getNodeMissCacheSize()	Size of NodeTable lookup miss cache
int	getSegmentSize()	Size of a memory-mapped file segment

Methods inherited from class java.lang.Object

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

Constructor Details

TDBSystemInfo

public TDBSystemInfo()

Method Details

getSegmentSize

public int getSegmentSize()

Description copied from interface: TDBSystemInfoMBean

Size of a memory-mapped file segment

Specified by:

getSegmentSize in interface TDBSystemInfoMBean

getNodeId2NodeCacheSize

public int getNodeId2NodeCacheSize()

Description copied from interface: TDBSystemInfoMBean

Size of NodeId to Node cache. Used to map from NodeId to Node spaces. Used for retrieving results.

Specified by:

getNodeId2NodeCacheSize in interface TDBSystemInfoMBean

getNode2NodeIdCacheSize

public int getNode2NodeIdCacheSize()

Description copied from interface: TDBSystemInfoMBean

Size of Node to NodeId cache. Used to map from Node to NodeId spaces. Used for loading and for query preparation.

Specified by:

getNode2NodeIdCacheSize in interface TDBSystemInfoMBean

getNodeMissCacheSize

public int getNodeMissCacheSize()

Description copied from interface: TDBSystemInfoMBean

Size of NodeTable lookup miss cache

Specified by:

getNodeMissCacheSize in interface TDBSystemInfoMBean

getBlockSize

public int getBlockSize()

Description copied from interface: TDBSystemInfoMBean

Size, in bytes, of a disk block

Specified by:

getBlockSize in interface TDBSystemInfoMBean

getBlockReadCacheSize

public int getBlockReadCacheSize()

Description copied from interface: TDBSystemInfoMBean

Size of read block cache (32 bit systems only). Increase JVM size as necessary. Per file.

Specified by:

getBlockReadCacheSize in interface TDBSystemInfoMBean

getBlockWriteCacheSize

public int getBlockWriteCacheSize()

Description copied from interface: TDBSystemInfoMBean

Size of the delayed-write block cache (32 bit systems only) (per file)

Specified by:

getBlockWriteCacheSize in interface TDBSystemInfoMBean