edu.umd.cfar.lamp.viper.util
Class AbstractInterval

java.lang.Object
  edu.umd.cfar.lamp.viper.util.AbstractInterval

All Implemented Interfaces:

Interval

Direct Known Subclasses:

AbstractInstantInterval, SimpleInterval

public abstract class AbstractInterval

extends java.lang.Object

implements Interval

An abstract base class for interval pairs of Comparable objects, such as BigIntegers or Instants.

Constructor Summary

AbstractInterval()

Method Summary

Interval	change(java.lang.Comparable start, java.lang.Comparable stop) Not implemented; throws unsupported operation exception.
boolean	contains(java.lang.Comparable i) Tests to see if the given item is within the interval.
boolean	contains(Interval other) Tests to see if the other interval is a subset of this interval.
boolean	contains(java.lang.Object o) Tests to see if the given object is contained within the interval.
boolean	contains(java.util.Set s) Tests to see that all elements of the set are contained within this interval.
boolean	equals(java.lang.Object o) Tests to see if this refers to the same interval as the other.
int	hashCode() Gets a hash code.
boolean	intersects(Interval other) Tests to see if this interval intersects the other one.
boolean	intersects(java.util.Set s) Assuming s contains instants or spans of the same type (Time or Frame), this will work.
boolean	isEmpty() Tests to see if any time is taken in the Span.
java.lang.String	toString() Gets a string version of the interval

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.umd.cfar.lamp.viper.util.Interval

getEnd, getStart

Constructor Detail

AbstractInterval

public AbstractInterval()

Method Detail

toString

public java.lang.String toString()

Gets a string version of the interval

Returns:

[start, end)

equals

public boolean equals(java.lang.Object o)

Tests to see if this refers to the same interval as the other.

Parameters:

o - the interval to test against

Returns:

true if the intervals are the same

hashCode

public int hashCode()

Gets a hash code.

Returns:

getStart().hashCode() ^ getEnd().hashCode()

isEmpty

public boolean isEmpty()

Tests to see if any time is taken in the Span.

Specified by:

isEmpty in interface Interval

Returns:

true if at least one Comparable is taken

intersects

public boolean intersects(java.util.Set s)

Assuming s contains instants or spans of the same type (Time or Frame), this will work. Otherwise may throw a ClassCastException.

Specified by:

intersects in interface Interval

Parameters:

s - set of Spans or Instants

Returns:

boolean

intersects

public boolean intersects(Interval other)

Tests to see if this interval intersects the other one.

Specified by:

intersects in interface Interval

Parameters:

other - the other interval to test

Returns:

true if there exists some object such that it is contained within this and the other interval.

contains

public boolean contains(java.lang.Object o)

Tests to see if the given object is contained within the interval. If it isn't a type that can be contained within the interval, returns false. Otherwise, it invokes one of the more specific versions of contains().

Parameters:

o - the object to test

Returns:

true if it is greater than or equal to start and strictly less than end

contains

public boolean contains(java.lang.Comparable i)

Tests to see if the given item is within the interval.

Specified by:

contains in interface Interval

Parameters:

i - the comparable object to look for

Returns:

true if it is greater than or equal to start and strictly less than end

contains

public boolean contains(Interval other)

Tests to see if the other interval is a subset of this interval.

Specified by:

contains in interface Interval

Parameters:

other - the interval to test

Returns:

true if other is a subset of this

contains

public boolean contains(java.util.Set s)

Tests to see that all elements of the set are contained within this interval.

Specified by:

contains in interface Interval

Parameters:

s - the items to check for

Returns:

true if this contains every element of s

change

public Interval change(java.lang.Comparable start,
                       java.lang.Comparable stop)

Not implemented; throws unsupported operation exception.

Specified by:

change in interface Interval

Parameters:

start - the start (inclusive)

stop - the end (exclusive)

Returns:

the new interval

Throws:

java.lang.UnsupportedOperationException