edu.stanford.math.plex

Class PersistenceInterval

java.lang.Object

edu.stanford.math.plex.PersistenceInterval

All Implemented Interfaces:

java.lang.Comparable<PersistenceInterval>

Direct Known Subclasses:

PersistenceInterval.Float, PersistenceInterval.Int

public abstract class PersistenceInterval
extends java.lang.Object
implements java.lang.Comparable<PersistenceInterval>

PersistenceInterval instances encode a dimension and a duration (e.g., start and end times). The integer start/end times are used internally in the Persistence class, but these may be converted to form that uses doubles for start/end.

Version:

$Id$

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PersistenceInterval.Float
static class	PersistenceInterval.Int

Field Summary

Fields

Modifier and Type	Field and Description
int	dimension The dimension of the PersistenceInterval.

Method Summary

Methods

Modifier and Type	Method and Description
abstract boolean	infiniteExtent() Is this PersistenceInterval semi-infinite in extent?
abstract double[]	toDouble() Return the start/endpoints as double[].
java.lang.String	toString() Represent a PersistenceInterval as a String.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Comparable

compareTo

Field Detail

dimension

public final int dimension

The dimension of the PersistenceInterval.

Method Detail

infiniteExtent

public abstract boolean infiniteExtent()

Is this PersistenceInterval semi-infinite in extent?

Returns:

True or false depending on whether or not the right endpoint is infinite.

toDouble

public abstract double[] toDouble()

Return the start/endpoints as double[].

Returns:

double[] describing the start and end points of the interval.

toString

public java.lang.String toString()

Represent a PersistenceInterval as a String.

Overrides:

toString in class java.lang.Object

Returns:

A string that describes a PersistenceInterval.