IntCompositions

java.lang.Object
- cc.redberry.combinatorics.IntCompositions

All Implemented Interfaces:

IntCombinatorialPort, java.io.Serializable
```
public final class IntCompositions
extends java.lang.Object
implements IntCombinatorialPort
```
Iterator over all compositions of specified integer into N parts.
Implementation note: the description of the algorithm can be found here https://stackoverflow.com/a/6609080/946635

Since:

2.0

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from interface cc.redberry.combinatorics.IntCombinatorialPort
  IntCombinatorialPort.Iterator

Field Summary

Fields
Modifier and Type	Field	Description
`private int[]`	`array`
`private IntCombinations`	`generator`
`private int`	`integer`
`private int`	`nCompositions`
`private static long`	`serialVersionUID`

Constructor Summary

Constructors
Constructor Description

IntCompositions(int integer, int nCompositions)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int[]`	`getReference()`	Returns the reference to the current iteration element
`void`	`reset()`	Resets the iteration
`int[]`	`take()`	Calculates and returns the next combination or null, if no more combinations exist.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - serialVersionUID
```
private static final long serialVersionUID
```
    See Also:
    
    Constant Field Values
  - integer
```
private final int integer
```
  - nCompositions
```
private final int nCompositions
```
  - generator
```
private final IntCombinations generator
```
  - array
```
private int[] array
```
- Constructor Detail
  - IntCompositions
```
public IntCompositions(int integer,
                       int nCompositions)
```
- Method Detail
  - reset
```
public void reset()
```
    Description copied from interface: IntCombinatorialPort
    
    Resets the iteration
    
    Specified by:
    
    reset in interface IntCombinatorialPort
  - getReference
```
public int[] getReference()
```
    Description copied from interface: IntCombinatorialPort
    
    Returns the reference to the current iteration element
    
    Specified by:
    
    getReference in interface IntCombinatorialPort
    
    Returns:
    
    the reference to the current iteration element
  - take
```
public int[] take()
```
    Description copied from interface: IntCombinatorialPort
    
    Calculates and returns the next combination or null, if no more combinations exist.
    
    Specified by:
    
    take in interface IntCombinatorialPort
    
    Returns:
    
    the next combination or null, if no more combinations exist