com.bigdata.bop.cost

Class ScanCostReport

java.lang.Object

com.bigdata.bop.cost.ScanCostReport

All Implemented Interfaces:

Serializable

public class ScanCostReport
extends Object
implements Serializable

A report on the expected cost of an index key range scan.

Version:

$Id$

Author:

Bryan Thompson

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
double	cost The expected cost of the scan (milliseconds).
long	rangeCount The fast range count.
long	shardCount The #of index partitions in the scan.

Constructor Summary

Constructors

Constructor and Description
ScanCostReport(long rangeCount, double cost)
ScanCostReport(long rangeCount, long shardCount, double cost)

Method Summary

Methods

Modifier and Type	Method and Description
String	toString() Human readable representation.

Methods inherited from class java.lang.Object

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

Field Detail

rangeCount

public final long rangeCount

The fast range count.

shardCount

public final long shardCount

The #of index partitions in the scan.

cost

public final double cost

The expected cost of the scan (milliseconds).

Constructor Detail

ScanCostReport

public ScanCostReport(long rangeCount,
              double cost)

Parameters:

rangeCount - The fast range count.

cost - The expected cost for the scan (milliseconds).

ScanCostReport

public ScanCostReport(long rangeCount,
              long shardCount,
              double cost)

Parameters:

rangeCount - The fast range count.

shardCount - The #of index partitions in the scan.

cost - The expected cost for the scan (milliseconds).

Method Detail

toString

public String toString()

Human readable representation.

Overrides:

toString in class Object