org.expasy.jpl.commons.collection
Class IntegerSequence

java.lang.Object
  org.expasy.jpl.commons.collection.IntegerSequence

public final class IntegerSequence
extends Object

A IntegerSequence in mathematics is a sequence (i.e., an ordered list) of integers. It is represented as an interval of numbers between a and b, including a and excluding b, it is often denoted [a,b[.

Version:

1.0

Author:

nikitin

Nested Class Summary

static class

IntegerSequence.Builder

Constructor Summary

IntegerSequence(IntegerSequence.Builder builder)

Method Summary

static int	computeSize(Interval interval, int by, boolean upperBoundIncluded) Compute the number of integers in the sequence form an interval.
static IntegerSequence	emptyInstance()
int	getBy()
int	getFrom()
int	getTo()
boolean	isEmpty()
static boolean	isUpperBoundIncluded(Interval interval, int by)
int	size()
int[]	toInts()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

IntegerSequence

public IntegerSequence(IntegerSequence.Builder builder)

Method Detail

emptyInstance

public static IntegerSequence emptyInstance()

getFrom

public final int getFrom()

getTo

public final int getTo()

getBy

public final int getBy()

size

public final int size()

toInts

public int[] toInts()

isEmpty

public boolean isEmpty()

isUpperBoundIncluded

public static boolean isUpperBoundIncluded(Interval interval,
                                           int by)

computeSize

public static int computeSize(Interval interval,
                              int by,
                              boolean upperBoundIncluded)

Compute the number of integers in the sequence form an interval.

Parameters:

interval - the sequence interval.

by - the step sequence.

Returns:

the size.

toString

public String toString()

Overrides:

toString in class Object