TDBSystemInfoMBean (Apache Jena TDB)

All Known Implementing Classes:: TDBSystemInfo

public interface TDBSystemInfoMBean

Static information relating to TDB

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

Method Details
- getBlockSize
  
  int getBlockSize()
  
  Size, in bytes, of a disk block
- getSegmentSize
  
  int getSegmentSize()
  
  Size of a memory-mapped file segment
- getNode2NodeIdCacheSize
  
  int getNode2NodeIdCacheSize()
  
  Size of Node to NodeId cache. Used to map from Node to NodeId spaces. Used for loading and for query preparation.
- getNodeId2NodeCacheSize
  
  int getNodeId2NodeCacheSize()
  
  Size of NodeId to Node cache. Used to map from NodeId to Node spaces. Used for retrieving results.
- getNodeMissCacheSize
  
  int getNodeMissCacheSize()
  
  Size of NodeTable lookup miss cache
- getBlockWriteCacheSize
  
  int getBlockWriteCacheSize()
  
  Size of the delayed-write block cache (32 bit systems only) (per file)
- getBlockReadCacheSize
  
  int getBlockReadCacheSize()
  
  Size of read block cache (32 bit systems only). Increase JVM size as necessary. Per file.