Package org.moeaframework.analysis.stream

Class ImmutablePartition<K,V>

java.lang.Object

org.moeaframework.analysis.stream.ImmutablePartition<K,V>

Type Parameters:

K - the type of each key

V - the type of each value

All Implemented Interfaces:

Partition<K,V>, Displayable, Formattable<org.apache.commons.lang3.tuple.Pair<K,V>>

Direct Known Subclasses:

Groups

public class ImmutablePartition<K,V>
extends Object
implements Partition<K,V>

A partition storing the intermediate, materialized content of the stream.

Constructor Summary

Constructors

Constructor	Description
ImmutablePartition()	Constructs a new, empty partition.
ImmutablePartition(Iterable<org.apache.commons.lang3.tuple.Pair<K,V>> iterable)	Constructs a new partition with the given content.
ImmutablePartition(List<org.apache.commons.lang3.tuple.Pair<K,V>> list)	Constructs a new partition with the given content.
ImmutablePartition(Stream<org.apache.commons.lang3.tuple.Pair<K,V>> stream)	Constructs a new partition with the given content.

Method Summary

Modifier and Type	Method	Description
int	size()	Returns the number of key-value pairs in this partition.
Stream<org.apache.commons.lang3.tuple.Pair<K,V>>	stream()	Returns a Stream of the key-value pairs in this partition.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.moeaframework.util.format.Displayable

display

Methods inherited from interface org.moeaframework.util.format.Formattable

display, display, display, save, save, save

Methods inherited from interface org.moeaframework.analysis.stream.Partition

any, asTabularData, distinct, enumerate, filter, first, forEach, groupBy, isEmpty, keys, keys, map, measure, reduce, reduce, single, singleOrDefault, sorted, sorted, values, values

Constructor Details

ImmutablePartition

public ImmutablePartition()

Constructs a new, empty partition.

ImmutablePartition

public ImmutablePartition(List<org.apache.commons.lang3.tuple.Pair<K,V>> list)

Constructs a new partition with the given content.

Parameters:

list - the list of key-value pairs

ImmutablePartition

public ImmutablePartition(Stream<org.apache.commons.lang3.tuple.Pair<K,V>> stream)

Constructs a new partition with the given content.

Parameters:

stream - the stream of key-value pairs

ImmutablePartition

public ImmutablePartition(Iterable<org.apache.commons.lang3.tuple.Pair<K,V>> iterable)

Constructs a new partition with the given content.

Parameters:

iterable - the iterable of key-value pairs

Method Details

size

public int size()

Description copied from interface: Partition

Returns the number of key-value pairs in this partition.

Specified by:

size in interface Partition<K,V>

Returns:

the number of items

stream

public Stream<org.apache.commons.lang3.tuple.Pair<K,V>> stream()

Description copied from interface: Partition

Returns a Stream of the key-value pairs in this partition.

Specified by:

stream in interface Partition<K,V>

Returns:

the stream