com.bigdata.btree
Class ViewStatistics

java.lang.Object
  com.bigdata.btree.ViewStatistics

public class ViewStatistics
extends Object

Helper class collects some statistics about an ILocalBTreeView.

Version:

$Id: ViewStatistics.java 2783 2010-05-07 13:14:20Z thompsonbry $

Author:

Bryan Thompson

Field Summary

int	sourceCount The #of journals and index segments in the view.
int	sourceJournalCount The #of journals in the view.
int	sourceSegmentCount The #of index segments in the view.
long	sumSegBytes The sum of the size on disk across the index segments in the view.

Constructor Summary

ViewStatistics(ILocalBTreeView view)
Collects some statistics about the view.

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

sourceCount

public final int sourceCount

The #of journals and index segments in the view.

sourceJournalCount

public final int sourceJournalCount

The #of journals in the view.

sourceSegmentCount

public final int sourceSegmentCount

The #of index segments in the view.

sumSegBytes

public final long sumSegBytes

The sum of the size on disk across the index segments in the view.

Constructor Detail

ViewStatistics

public ViewStatistics(ILocalBTreeView view)

Collects some statistics about the view.

Note: If the view is assembled solely from the BTree on a journal rather than from all sources in its LocalPartitionMetadata then statistics about any IndexSegments in the view WILL NOT be reported.

Parameters:

view - The view.