org.apache.hudi.common.util.collection

Class FlatLists

java.lang.Object

org.apache.hudi.common.util.collection.FlatLists

public class FlatLists
extends Object

Space-efficient, comparable, immutable lists, copied from calcite core.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	FlatLists.ComparableList<T> List that is also comparable.

Method Summary

Modifier and Type	Method and Description
static <T> List<T>	of(List<T> t) Creates a memory-, CPU- and cache-efficient immutable list from an existing list.
static <T extends Comparable> FlatLists.ComparableList<T>	ofComparable(List<T> t)
static <T extends Comparable> FlatLists.ComparableList<T>	ofComparableArray(Object[] t)

Methods inherited from class java.lang.Object

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

Method Detail

of

public static <T> List<T> of(List<T> t)

Creates a memory-, CPU- and cache-efficient immutable list from an existing list. The list is always copied.

Type Parameters:

T - Element type

Parameters:

t - Array of members of list

Returns:

List containing the given members

ofComparable

public static <T extends Comparable> FlatLists.ComparableList<T> ofComparable(List<T> t)

ofComparableArray

public static <T extends Comparable> FlatLists.ComparableList<T> ofComparableArray(Object[] t)