Package com.cognite.client.util

Class Partition<T>

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractList<List<T>>

com.cognite.client.util.Partition<T>

Type Parameters:

T -

All Implemented Interfaces:

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

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

Utility class that splits a (large) List into a set of smaller batches (also represented as List). This class offers a performant way of splitting collections into smaller batches. Depending on input size it may be 10 times more efficient than a for loop.

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

Constructors

Constructor	Description
Partition(List<T> list, int batchSize)

Method Summary

Modifier and Type	Method	Description
List<T>	get(int index)
static <T> Partition<T>	ofSize(List<T> list, int batchSize)
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 Detail

Partition

public Partition(List<T> list,
                 int batchSize)

Method Detail

ofSize

public static <T> Partition<T> ofSize(List<T> list,
                                      int batchSize)

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>>