org.metacsp.time

Class Interval

java.lang.Object

org.metacsp.framework.Domain

org.metacsp.time.Interval

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<java.lang.Object>

public class Interval
extends Domain

Represents intervals of time described by a start and an end time. Used as a domain for the APSPSolver variables (i.e., TimePoints), and also as a utility class to represent intervals (e.g., for constraints, etc.). Derived from original implementation by the Planning and Scheduling Team (ISTC-CNR) under project APSI.

Author:

Federico Pecora and Planning and Scheduling Team

See Also:

Serialized Form

Field Summary

Fields inherited from class org.metacsp.framework.Domain

defaultValueChoiceFunction, logger, myVariable, valueChoiceFunctions

Constructor Summary

Constructors

Constructor and Description
Interval(TimePoint timePoint) Builds a zero-length time interval (start = stop = 0).
Interval(TimePoint timePoint, long start, long stop) Builds a time interval with the given start and end times.

Method Summary

Modifier and Type	Method and Description
int	compareTo(java.lang.Object arg0) Compares this to another Interval
boolean	equals(java.lang.Object obj) Compares two time intervals, returning true iff their start and end times coincide.
Bounds	getBounds()
long	getLowerBound()
long	getUpperBound()
int	hashCode()
java.lang.String	toString() Returns A String representation of the Interval.

Methods inherited from class org.metacsp.framework.Domain

chooseValue, chooseValue, getValueChoiceFunctions, getVariable, registerValueChoiceFunction, removeValueChoiceFunctions, setDefaultValueChoiceFunction

Methods inherited from class java.lang.Object

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

Constructor Detail

Interval

public Interval(TimePoint timePoint)

Builds a zero-length time interval (start = stop = 0).

Interval

public Interval(TimePoint timePoint,
                long start,
                long stop)

Builds a time interval with the given start and end times.

Parameters:

start - The start time of the interval.

stop - The end time of the interval.

Method Detail

equals

public boolean equals(java.lang.Object obj)

Compares two time intervals, returning true iff their start and end times coincide.

Overrides:

equals in class java.lang.Object

Returns:

True iff the two intervals coincide and the argument is also an Interval.

toString

public java.lang.String toString()

Returns A String representation of the Interval.

Specified by:

toString in class Domain

Returns:

A String describing the Interval.

getBounds

public Bounds getBounds()

compareTo

public int compareTo(java.lang.Object arg0)

Compares this to another Interval

Returns:

1 if this Interval's lower bound is lower than the argument's, 0 if they are the same, 1 otherwise

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

getLowerBound

public long getLowerBound()

getUpperBound

public long getUpperBound()