BtreeStats (Oracle - Berkeley DB Java API)

java.lang.Object
- com.sleepycat.db.DatabaseStats
- - com.sleepycat.db.BtreeStats

```
public class BtreeStats
extends DatabaseStats
```
The BtreeStats object is used to return Btree or Recno database statistics.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	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`	`getMetaFlags()`	Reports internal flags.
`int`	`getMinKey()`	The minimum keys per page.
`int`	`getNumBlobs()`
`int`	`getNumData()`	The number of key/data pairs or records in the database.
`int`	`getNumKeys()`	The number of keys or records 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 BtreeStats 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
  - 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
  - getVersion
```
public int getVersion()
```
    The version of the Btree database.
    
    Returns:
    
    the version of the Btree database
  - getMetaFlags
```
public int getMetaFlags()
```
    Reports internal flags. For internal use only.
    
    Returns:
    
    internal flags
  - getNumKeys
```
public int getNumKeys()
```
    The number of keys or records in the database.
    For the Btree Access Method, the number of keys in the database. If the Database.getStats call was not configured by the StatsConfig.setFast 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.
    For the Recno Access Method, the number of records in the database. If the database was configured with mutable record numbers the count will be exact. Otherwise, if the Database.getStats call was configured by the StatsConfig.setFast method, the count will be exact but will include deleted records; if the Database.getStats call was not configured by the StatsConfig.setFast method, the count will be exact and will not include deleted records.
    
    Returns:
    
    the number of keys or records in the database
  - getNumData
```
public int getNumData()
```
    The number of key/data pairs or records in the database.
    For the Btree Access Method, the number of key/data pairs in the database. If the Database.getStats call was not configured by the StatsConfig.setFast 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.
    For the Recno Access Method, the number of records in the database. If the database was configured with mutable record numbers, the count will be exact. Otherwise, if the Database.getStats call was configured by the StatsConfig.setFast method, the count will be exact but will include deleted records; if the Database.getStats call was not configured by the StatsConfig.setFast method, the count will be exact and will not include deleted records.
    
    Returns:
    
    the number of key/data pairs or records in the database
  - getPageCount
```
public int getPageCount()
```
    The number of pages in the database.
    Returned if StatsConfig.setFast(boolean) was configured.
    
    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
  - 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
  - getNumBlobs
```
public int getNumBlobs()
```
  - 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
  - getLevels
```
public int getLevels()
```
    The number of levels in the database.
    The information is only included if the Database.getStats call was not configured by the StatsConfig.setFast method.
    
    Returns:
    
    the number of levels in the database
  - getIntPages
```
public int getIntPages()
```
    The number of database internal pages.
    The information is only included if the Database.getStats call was not configured by the StatsConfig.setFast method.
    
    Returns:
    
    the number of database internal pages
  - getLeafPages
```
public int getLeafPages()
```
    The number of database leaf pages.
    The information is only included if the Database.getStats call was not configured by the StatsConfig.setFast method.
    
    Returns:
    
    the number of database leaf pages
  - getDupPages
```
public int getDupPages()
```
    The number of database duplicate pages.
    The information is only included if the Database.getStats call was not configured by the StatsConfig.setFast method.
    
    Returns:
    
    the number of database duplicate pages
  - getOverPages
```
public int getOverPages()
```
    The number of database overflow pages.
    The information is only included if the Database.getStats call was not configured by the StatsConfig.setFast method.
    
    Returns:
    
    the number of database overflow pages
  - getEmptyPages
```
public int getEmptyPages()
```
    The number of empty database pages.
    The information is only included if the Database.getStats call was not configured by the StatsConfig.setFast 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 Database.getStats call was not configured by the StatsConfig.setFast method.
    
    Returns:
    
    the number of pages on the free list
  - getIntPagesFree
```
public long getIntPagesFree()
```
    The number of bytes free in database internal pages.
    The information is only included if the Database.getStats call was not configured by the StatsConfig.setFast method.
    
    Returns:
    
    the number of bytes free in database internal pages
  - getLeafPagesFree
```
public long getLeafPagesFree()
```
    The number of bytes free in database leaf pages.
    The information is only included if the Database.getStats call was not configured by the StatsConfig.setFast method.
    
    Returns:
    
    the number of bytes free in database leaf pages
  - getDupPagesFree
```
public long getDupPagesFree()
```
    The number of bytes free in database duplicate pages.
    The information is only included if the Database.getStats call was not configured by the StatsConfig.setFast method.
    
    Returns:
    
    the number of bytes free in database duplicate pages
  - getOverPagesFree
```
public long getOverPagesFree()
```
    The number of bytes free in database overflow pages.
    The information is only included if the Database.getStats call was not configured by the StatsConfig.setFast method.
    
    Returns:
    
    the number of bytes free in database overflow pages
  - toString
```
public java.lang.String toString()
```
    For convenience, the BtreeStats 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

Class BtreeStats

Method Summary

Methods inherited from class java.lang.Object

Method Detail

getMagic

getVersion

getMetaFlags

getNumKeys

getNumData

getPageCount

getPageSize

getMinKey

getExtFiles

getNumBlobs

getReLen

getRePad

getLevels

getIntPages

getLeafPages

getDupPages

getOverPages

getEmptyPages

getFree

getIntPagesFree

getLeafPagesFree

getDupPagesFree

getOverPagesFree

toString