com.sleepycat.client

Class SBtreeStats

java.lang.Object

com.sleepycat.client.SBtreeStats

All Implemented Interfaces:

SDatabaseStats

public class SBtreeStats
extends java.lang.Object
implements SDatabaseStats

The SBtreeStats object is used to return Btree or Recno database statistics.

Method Summary

Modifier and Type	Method and Description
int	getDupPages() The number of database duplicate pages.
long	getDupPagesFree() The number of bytes free in database duplicate pages.
int	getEmptyPages() The number of empty database pages.
int	getExtFiles() The number of external files.
int	getFree() The number of pages on the free list.
int	getIntPages() The number of database internal pages.
long	getIntPagesFree() The number of bytes free in database internal pages.
int	getLeafPages() The number of database leaf pages.
long	getLeafPagesFree() The number of bytes free in database leaf pages.
int	getLevels() The number of levels in the database.
int	getMagic() The magic number that identifies the file as a Btree database.
int	getMinKey() The minimum keys per page.
int	getNumData() The number of key/data pairs in the database.
int	getNumKeys() The number of keys in the database.
int	getOverPages() The number of database overflow pages.
long	getOverPagesFree() The number of bytes free in database overflow pages.
int	getPageCount() The number of pages in the database.
int	getPageSize() The underlying database page size, in bytes.
int	getReLen() The length of fixed-length records.
int	getRePad() The padding byte value for fixed-length records.
int	getVersion() The version of the Btree database.
java.lang.String	toString() For convenience, the SBtreeStats class has a toString method that lists all the data fields.

Methods inherited from class java.lang.Object

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

Method Detail

getDupPages

public int getDupPages()

The number of database duplicate pages.

The information is only included if the SDatabase.getStats(com.sleepycat.client.STransaction, com.sleepycat.client.SStatsConfig) call was not configured by the SStatsConfig.setFast(boolean) method.

Returns:

the number of database duplicate pages

getDupPagesFree

public long getDupPagesFree()

The number of bytes free in database duplicate pages.

The information is only included if the SDatabase.getStats(com.sleepycat.client.STransaction, com.sleepycat.client.SStatsConfig) call was not configured by the SStatsConfig.setFast(boolean) method.

Returns:

the number of bytes free in the database duplciate pages

getEmptyPages

public int getEmptyPages()

The number of empty database pages.

The information is only included if the SDatabase.getStats(com.sleepycat.client.STransaction, com.sleepycat.client.SStatsConfig) call was not configured by the SStatsConfig.setFast(boolean) method.

Returns:

the number of empty database pages

getFree

public int getFree()

The number of pages on the free list.

The information is only included if the SDatabase.getStats(com.sleepycat.client.STransaction, com.sleepycat.client.SStatsConfig) call was not configured by the SStatsConfig.setFast(boolean) method.

Returns:

the number of pages on the free list

getIntPages

public int getIntPages()

The number of database internal pages.

The information is only included if the SDatabase.getStats(com.sleepycat.client.STransaction, com.sleepycat.client.SStatsConfig) call was not configured by the SStatsConfig.setFast(boolean) method.

Returns:

the number of database internal pages

getIntPagesFree

public long getIntPagesFree()

The number of bytes free in database internal pages.

The information is only included if the SDatabase.getStats(com.sleepycat.client.STransaction, com.sleepycat.client.SStatsConfig) call was not configured by the SStatsConfig.setFast(boolean) method.

Returns:

the number of bytes free in database internal pages

getLeafPages

public int getLeafPages()

The number of database leaf pages.

The information is only included if the SDatabase.getStats(com.sleepycat.client.STransaction, com.sleepycat.client.SStatsConfig) call was not configured by the SStatsConfig.setFast(boolean) method.

Returns:

the number of database leaf pages

getLeafPagesFree

public long getLeafPagesFree()

The number of bytes free in database leaf pages.

The information is only included if the SDatabase.getStats(com.sleepycat.client.STransaction, com.sleepycat.client.SStatsConfig) call was not configured by the SStatsConfig.setFast(boolean) method.

Returns:

the number of bytes free in database leaf pages

getLevels

public int getLevels()

The number of levels in the database.

The information is only included if the SDatabase.getStats(com.sleepycat.client.STransaction, com.sleepycat.client.SStatsConfig) call was not configured by the SStatsConfig.setFast(boolean) method.

Returns:

the number of levels in the database

getMagic

public int getMagic()

The magic number that identifies the file as a Btree database.

Returns:

the magic number that identifies the file as a Btree database

getMinKey

public int getMinKey()

The minimum keys per page.

Returns:

the minimum keys per page

getExtFiles

public int getExtFiles()

The number of external files.

Returns:

the number of external files

getNumData

public int getNumData()

The number of key/data pairs in the database.

For the Btree Access Method, the number of key/data pairs in the database. If the SDatabase.getStats(com.sleepycat.client.STransaction, com.sleepycat.client.SStatsConfig) call was not configured by the SStatsConfig.setFast(boolean) method, the count will be exact. Otherwise, the count will be the last saved value unless it has never been calculated, in which case it will be 0.

Returns:

the number of key/data pairs in the database

getNumKeys

public int getNumKeys()

The number of keys in the database.

For the Btree Access Method, the number of keys in the database. If the SDatabase.getStats(com.sleepycat.client.STransaction, com.sleepycat.client.SStatsConfig) call was not configured by the SStatsConfig.setFast(boolean) method or the database was configured to support retrieval by record number, the count will be exact. Otherwise, the count will be the last saved value unless it has never been calculated, in which case it will be 0.

Returns:

the number of keys in the database

getOverPages

public int getOverPages()

The number of database overflow pages.

The information is only included if the SDatabase.getStats(com.sleepycat.client.STransaction, com.sleepycat.client.SStatsConfig) call was not configured by the SStatsConfig.setFast(boolean) method.

Returns:

the number of database overflow pages

getOverPagesFree

public long getOverPagesFree()

The number of bytes free in database overflow pages.

The information is only included if the SDatabase.getStats(com.sleepycat.client.STransaction, com.sleepycat.client.SStatsConfig) call was not configured by the SStatsConfig.setFast(boolean) method.

Returns:

the number of bytes free in database overflow pages

getPageCount

public int getPageCount()

The number of pages in the database.

Returns:

the number of pages in the database

getPageSize

public int getPageSize()

The underlying database page size, in bytes.

Returns:

the underlying database page size, in bytes

getReLen

public int getReLen()

The length of fixed-length records.

Returns:

the length of fixed-length records

getRePad

public int getRePad()

The padding byte value for fixed-length records.

Returns:

the padding byte value for fixed-length records

getVersion

public int getVersion()

The version of the Btree database.

Returns:

the version of the Btree database

toString

public java.lang.String toString()

For convenience, the SBtreeStats class has a toString method that lists all the data fields.

Overrides:

toString in class java.lang.Object

Returns:

a String that lists all the data fields