Package com.glitchybyte.glib.combinatorics

Class GCodedPermutations

java.lang.Object

com.glitchybyte.glib.combinatorics.GCodedSequencesGenerator

com.glitchybyte.glib.combinatorics.GCodedPermutations

All Implemented Interfaces:

Iterable<int[]>

public final class GCodedPermutations
extends GCodedSequencesGenerator

Coded permutations.

A coded sequence generator where the order of items matter. The code itself is a sequence of indexes.

Field Summary

Fields inherited from class com.glitchybyte.glib.combinatorics.GCodedSequencesGenerator

allowDuplicateItems, itemCount, maxSize, minSize

Constructor Summary

Constructors

Constructor	Description
GCodedPermutations(int itemCount, boolean allowDuplicateItems)	Creates a coded sequence generator of a size equal to itemCount.
GCodedPermutations(int itemCount, boolean allowDuplicateItems, int minSize, int maxSize)	Creates a coded sequence generator with an iterator with the given characteristics.

Method Summary

Modifier and Type	Method	Description
protected boolean	incCode(int[] code)	Increases the code one step.

Methods inherited from class com.glitchybyte.glib.combinatorics.GCodedSequencesGenerator

iterator

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Details

GCodedPermutations

public GCodedPermutations(int itemCount,
 boolean allowDuplicateItems,
 int minSize,
 int maxSize)

Creates a coded sequence generator with an iterator with the given characteristics.

Parameters:

itemCount - Number of unique items.

allowDuplicateItems - true if a sequence can use the same item more than once.

minSize - Minimum size of a sequence.

maxSize - Maximum size of a sequence.

GCodedPermutations

public GCodedPermutations(int itemCount,
 boolean allowDuplicateItems)

Creates a coded sequence generator of a size equal to itemCount.

Parameters:

itemCount - Number of unique items.

allowDuplicateItems - true if a sequence can use the same item more than once.

Method Details

incCode

protected boolean incCode(int[] code)

Increases the code one step.

Specified by:

incCode in class GCodedSequencesGenerator

Parameters:

code - Current code.

Returns:

true if code was increased.