com.bigdata.bop.cost

Class DiskCostModel

java.lang.Object

com.bigdata.bop.cost.DiskCostModel

All Implemented Interfaces:

Serializable

public class DiskCostModel
extends Object
implements Serializable

A cost model of the disk.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static DiskCostModel	DEFAULT
double	seekTime The average disk seek time (milliseconds).
double	transferRate The average disk transfer rate (megabytes per second).

Constructor Summary

Constructors

Constructor and Description
DiskCostModel(double seekTime, double transferRate)

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT

public static final DiskCostModel DEFAULT

seekTime

public final double seekTime

The average disk seek time (milliseconds).

transferRate

public final double transferRate

The average disk transfer rate (megabytes per second).

Constructor Detail

DiskCostModel

public DiskCostModel(double seekTime,
             double transferRate)

Parameters:

seekTime - The average disk seek time (milliseconds).

transferRate - The average disk transfer rate (megabytes per second).