mark.core.util
Class IntMap

java.lang.Object
  |
  +--mark.core.util.IntMap

public class IntMap

extends java.lang.Object

An IntMap associates integers with other integers. Call the two sets of integers l and s. l is contains integers in 0..#(l), where #(l) is the number of elements in l minus one. s contains integers in 0..#(s), where #(s) is the number of elements in s minus one. #(s) must be less than or equal to #(l). All mapping s->l exist. However, some mappings from l->s will not exitis if #(l) > #(s). These values in l map to -1 rather than a value in s.

Constructor Summary

IntMap(int[] sToLMap, int numL)
Initializes the map.

Method Summary

int	mapL(int l) Given an l value, returns the corresponding s value.
int	mapS(int s) Given an s value, returns the corresponding l value.
int	numL() Returns the number of l values.
int	numS() Returns the number of s values.

Methods inherited from class java.lang.Object

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

Constructor Detail

IntMap

public IntMap(int[] sToLMap,
              int numL)

Initializes the map.

Method Detail

mapS

public int mapS(int s)
         throws java.lang.Exception

Given an s value, returns the corresponding l value.

Parameters:

s - the s value.

Returns:

the corresponding l value.

Throws:

java.lang.Exception - if the mapping does not exist.

mapL

public int mapL(int l)
         throws java.lang.Exception

Given an l value, returns the corresponding s value.

Parameters:

l - the l value.

Returns:

the corresponding s value.

Throws:

java.lang.Exception - if the mapping does not exist.

numS

public int numS()

Returns the number of s values.

numL

public int numL()

Returns the number of l values.