forcefield
Class DenseExclusions

java.lang.Object
  forcefield.DenseExclusions

public class DenseExclusions

extends java.lang.Object

meant for storing the exclusions of the particles (atoms) in the system. exclusions are represented via a bool[]. i.e. this is suitable for small systems with lots of exclusions, a densely populated system.

Since:

0.1

Version:

0.1, November 2002

Author:

Mika Kastenholz, Vincent Kraeutler

Field Summary

private int	length
private boolean[]	store
private int	types

Constructor Summary

DenseExclusions(int i, int j)
typically i == j

Method Summary

boolean	get(int i, int j) get an exclusions
private int	index(int i, int j)
void	put(int i, int j, boolean status) set an exclusion
int	size()
int	types()

Methods inherited from class java.lang.Object

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

Field Detail

types

private final int types

store

private boolean[] store

length

private final int length

Constructor Detail

DenseExclusions

public DenseExclusions(int i,
                       int j)

typically i == j

Parameters:

i - number of atoms with exclusions

j - number of atoms that may be excluded

Method Detail

put

public final void put(int i,
                      int j,
                      boolean status)

set an exclusion

Parameters:

i -

j -

status - is j excluded by i?

get

public final boolean get(int i,
                         int j)

get an exclusions

Parameters:

i -

j -

Returns:

is j excluded by i?

size

public final int size()

Returns:

the number of pairs (i.e. maximum number of exclusions)

types

public final int types()

Returns:

the number of excluding atoms

index

private final int index(int i,
                        int j)

Parameters:

i -

j -

Returns:

the index of exclusion (i, j)