com.sleepycat.client

Class SStatsConfig

java.lang.Object

com.sleepycat.client.SStatsConfig

public class SStatsConfig
extends java.lang.Object

Specifies the attributes of a statistics retrieval operation.

Constructor Summary

Constructors

Constructor and Description
SStatsConfig() Create a default SStatsConfig.
SStatsConfig(boolean clear, boolean fast) Create a SStatsConfig with the specified attributes.

Method Summary

Modifier and Type	Method and Description
boolean	getClear() Return if the statistics operation is configured to reset statistics after they are returned.
boolean	getFast() Return if the statistics operation is configured to return only the values which do not require expensive actions.
SStatsConfig	setClear(boolean clear) Configure the statistics operation to reset statistics after they are returned.
SStatsConfig	setFast(boolean fast) Configure the statistics operation to return only the values which do not incur some performance penalty.

Methods inherited from class java.lang.Object

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

Constructor Detail

SStatsConfig

public SStatsConfig()

Create a default SStatsConfig.

SStatsConfig

public SStatsConfig(boolean clear,
                    boolean fast)

Create a SStatsConfig with the specified attributes.

Parameters:

clear - if the statistic operation will reset statistics after they are returned

fast - if the statistic operation will return only the values which do not incur some performance penalty

Method Detail

getClear

public boolean getClear()

Return if the statistics operation is configured to reset statistics after they are returned.

Returns:

if the statistics operation is configured to reset statistics after they are returned.

setClear

public SStatsConfig setClear(boolean clear)

Configure the statistics operation to reset statistics after they are returned.

Parameters:

clear - if set to true, configure the statistics operation to reset statistics after they are returned.

Returns:

this

getFast

public boolean getFast()

Return if the statistics operation is configured to return only the values which do not require expensive actions.

Returns:

if the statistics operation is configured to return only the values which do not require expensive actions.

setFast

public SStatsConfig setFast(boolean fast)

Configure the statistics operation to return only the values which do not incur some performance penalty.

For example, skip stats that require a traversal of the database or in-memory tree, or which lock down the lock table for a period of time.

Among other things, this flag makes it possible for applications to request key and record counts without incurring the performance penalty of traversing the entire database. If the underlying database is of type Recno, or of type Btree and the database was configured to support retrieval by record number, the count of keys will be exact. Otherwise, the count of keys will be the value saved the last time the database was traversed, or 0 if no count of keys has ever been made. If the underlying database is of type Recno, the count of data items will be exact, otherwise, the count of data items will be the value saved the last time the database was traversed, or 0 if no count of data items has ever been done.

Parameters:

fast - if set to true, configure the statistics operation to return only the values which do not incur some performance penalty.

Returns:

this