Package org.rcsb.strucmotif.math

Class Partition<T>

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractList<List<T>>

org.rcsb.strucmotif.math.Partition<T>

Type Parameters:

T - type of the original collection

All Implemented Interfaces:

Iterable<List<T>>, Collection<List<T>>, List<List<T>>

public class Partition<T>
extends AbstractList<List<T>>

Partitions a collection into (roughly) equal-sized chunks. Will shuffle the original collection. code from: https://e.printstacktrace.blog/divide-a-list-to-lists-of-n-size-in-Java-8/

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

Constructors

Constructor	Description
Partition(Collection<T> list, int chunkSize)	Split a collection into partitions up to a defined size.

Method Summary

Modifier and Type	Method	Description
List<T>	get(int index)
int	size()

Methods inherited from class java.util.AbstractList

add, add, addAll, clear, equals, hashCode, indexOf, iterator, lastIndexOf, listIterator, listIterator, remove, removeRange, set, subList

Methods inherited from class java.util.AbstractCollection

addAll, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.List

addAll, contains, containsAll, isEmpty, remove, removeAll, replaceAll, retainAll, sort, spliterator, toArray, toArray

Constructor Details

Partition

public Partition(Collection<T> list,
 int chunkSize)

Split a collection into partitions up to a defined size.

Parameters:

list - collection to partition

chunkSize - how many elements in one batch

Method Details

get

public List<T> get(int index)

Specified by:

get in interface List<T>

Specified by:

get in class AbstractList<List<T>>

size

public int size()

Specified by:

size in interface Collection<T>

Specified by:

size in interface List<T>

Specified by:

size in class AbstractCollection<List<T>>