edu.nrao.sss.model.project.scheduling.constraint
Class ConstraintPositionMaximum

java.lang.Object
  edu.nrao.sss.model.project.scheduling.constraint.Constraint
      edu.nrao.sss.model.project.scheduling.constraint.ConstraintPositionMaximum

public class ConstraintPositionMaximum
extends Constraint

Represents the distance in hours from the time the target is at maximum elevation and the current time as a measure of the probability of successful observation of the scheduling block.

Author:

slovelan

Field Summary

Fields inherited from class edu.nrao.sss.model.project.scheduling.constraint.Constraint

constraintType

Constructor Summary

ConstraintPositionMaximum()

ConstraintPositionMaximum(ConstraintPositionMaximum cpm)

Method Summary

TimeDuration	getInterval()
ConstraintProbability	getProbabilitySuccess(List<Constraint> constraints) Returns the probability of a successful observation based on the number of elapsed hours between the current time and the time at which the target is at maximum elevation using the following formula: 0 <= elapsed hours < 30 minutes, returns 1; 30 minutes <= elapsed hours < 1 hour, return 0.9; 1 hour <= elapsed hours < 90 minutes, return 0.8; otherwise return 0.
Object	getValue()
boolean	isSpecified() Returns true if this constraint represents a restriction in terms of scheduling on the block; false otherwise.
void	reset() Resets this constraint back to its original default (unspecified value).
void	setInterval(TimeDuration interval)

Methods inherited from class edu.nrao.sss.model.project.scheduling.constraint.Constraint

equals, getConstraint, getConstraintType, hashCode

Methods inherited from class java.lang.Object

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

Constructor Detail

ConstraintPositionMaximum

public ConstraintPositionMaximum()

ConstraintPositionMaximum

public ConstraintPositionMaximum(ConstraintPositionMaximum cpm)

Method Detail

reset

public void reset()

Description copied from class: Constraint

Resets this constraint back to its original default (unspecified value).

Specified by:

reset in class Constraint

isSpecified

public boolean isSpecified()

Description copied from class: Constraint

Returns true if this constraint represents a restriction in terms of scheduling on the block; false otherwise.

Specified by:

isSpecified in class Constraint

Returns:

true if this constraint is inot in its default state; false otherwise.

getInterval

public TimeDuration getInterval()

setInterval

public void setInterval(TimeDuration interval)

getValue

public Object getValue()

Specified by:

getValue in class Constraint

getProbabilitySuccess

public ConstraintProbability getProbabilitySuccess(List<Constraint> constraints)

Returns the probability of a successful observation based on the number of elapsed hours between the current time and the time at which the target is at maximum elevation using the following formula: 0 <= elapsed hours < 30 minutes, returns 1; 30 minutes <= elapsed hours < 1 hour, return 0.9; 1 hour <= elapsed hours < 90 minutes, return 0.8; otherwise return 0.

Specified by:

getProbabilitySuccess in class Constraint

Parameters:

constraints - the current external operating condition the could be the current wind speed if the constraint represents wind speed or a date if the constraint represents a position elevation.

Returns:

a ConstraintProbability indicating the probability of success for the constraint.