com.sleepycat.db
Class DbBtreeStat

java.lang.Object
  |
  +--com.sleepycat.db.DbBtreeStat

public class DbBtreeStat

extends Object

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

Field Summary

int	bt_dup_pg Number of database duplicate pages.
int	bt_dup_pgfree Number of bytes free in database duplicate pages.
int	bt_free Number of pages on the free list.
int	bt_int_pg Number of database internal pages.
int	bt_int_pgfree Number of bytes free in database internal pages.
int	bt_leaf_pg Number of database leaf pages.
int	bt_leaf_pgfree Number of bytes free in database leaf pages.
int	bt_levels Number of levels in the database.
int	bt_magic Magic number that identifies the file as a Btree database.
int	bt_maxkey
int	bt_metaflags
int	bt_minkey The minimum keys per page.
int	bt_ndata For the Btree Access Method, the number of key/data pairs in the database.
int	bt_nkeys For the Btree Access Method, the number of unique keys in the database.
int	bt_over_pg Number of database overflow pages.
int	bt_over_pgfree Number of bytes free in database overflow pages.
int	bt_pagesize Underlying database page size, in bytes.
int	bt_re_len The length of fixed-length records.
int	bt_re_pad The padding byte value for fixed-length records.
int	bt_version The version of the Btree database.

Constructor Summary

DbBtreeStat()

Method Summary

String

toString() Provide a string representation of all the fields contained within this class.

Methods inherited from class java.lang.Object

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

Field Detail

bt_magic

public int bt_magic

Magic number that identifies the file as a Btree database. Returned if Db.DB_FAST_STAT is set.

bt_version

public int bt_version

The version of the Btree database. Returned if Db.DB_FAST_STAT is set.

bt_metaflags

public int bt_metaflags

bt_nkeys

public int bt_nkeys

For the Btree Access Method, the number of unique keys in the database. If Db.DB_FAST_STAT was specified and the database was created with the Db.DB_RECNUM flag, 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. For the Recno Access Method, the exact number of records in the database. Returned if Db.DB_FAST_STAT is set.

bt_ndata

public int bt_ndata

For the Btree Access Method, the number of key/data pairs in the database. If Db.DB_FAST_STAT was specified the count will be the last saved value unless it has never been calculated, in which case it will be 0. For the Recno Access Method, the exact number of records in the database. If the database has been configured to not renumber records during deletion, the count of records will only reflect undeleted records. Returned if Db.DB_FAST_STAT is set.

bt_pagesize

public int bt_pagesize

Underlying database page size, in bytes. Returned if Db.DB_FAST_STAT is set.

bt_maxkey

public int bt_maxkey

bt_minkey

public int bt_minkey

The minimum keys per page. Returned if Db.DB_FAST_STAT is set.

bt_re_len

public int bt_re_len

The length of fixed-length records. Returned if Db.DB_FAST_STAT is set.

bt_re_pad

public int bt_re_pad

The padding byte value for fixed-length records. Returned if Db.DB_FAST_STAT is set.

bt_levels

public int bt_levels

Number of levels in the database.

bt_int_pg

public int bt_int_pg

Number of database internal pages.

bt_leaf_pg

public int bt_leaf_pg

Number of database leaf pages.

bt_dup_pg

public int bt_dup_pg

Number of database duplicate pages.

bt_over_pg

public int bt_over_pg

Number of database overflow pages.

bt_free

public int bt_free

Number of pages on the free list.

bt_int_pgfree

public int bt_int_pgfree

Number of bytes free in database internal pages.

bt_leaf_pgfree

public int bt_leaf_pgfree

Number of bytes free in database leaf pages.

bt_dup_pgfree

public int bt_dup_pgfree

Number of bytes free in database duplicate pages.

bt_over_pgfree

public int bt_over_pgfree

Number of bytes free in database overflow pages.

Constructor Detail

DbBtreeStat

public DbBtreeStat()

Method Detail

toString

public String toString()

Provide a string representation of all the fields contained within this class.

Overrides:

toString in class Object

Returns:

The string representation.