org.apache.calcite.linq4j

Class Ord<E>

java.lang.Object

org.apache.calcite.linq4j.Ord<E>

Type Parameters:

E - Element type

All Implemented Interfaces:

Map.Entry<Integer,E>

public class Ord<E>
extends Object
implements Map.Entry<Integer,E>

Pair of an element and an ordinal.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	Ord.OrdArrayList<E> List of Ord backed by an array of elements.
private static class	Ord.OrdList<E> List of Ord backed by a list of elements.
private static class	Ord.OrdRandomAccessList<E> List of Ord backed by a random-access list of elements.

Field Summary

Fields

Modifier and Type	Field and Description
E	e
int	i

Constructor Summary

Constructors

Constructor and Description
Ord(int i, E e) Creates an Ord.

Method Summary

Methods

Modifier and Type	Method and Description
Integer	getKey()
E	getValue()
static <E> Ord<E>	of(int n, E e) Creates an Ord.
static <E> Iterable<Ord<E>>	reverse(E... elements) Iterates over an array in reverse order.
static <E> Iterable<Ord<E>>	reverse(Iterable<? extends E> elements) Iterates over a list in reverse order.
E	setValue(E value)
static <E> List<Ord<E>>	zip(E[] elements) Returns a numbered list based on an array.
static <E> Iterable<Ord<E>>	zip(Iterable<? extends E> iterable) Creates an iterable of Ords over an iterable.
static <E> Iterator<Ord<E>>	zip(Iterator<? extends E> iterator) Creates an iterator of Ords over an iterator.
static <E> List<Ord<E>>	zip(List<? extends E> elements) Returns a numbered list.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map.Entry

equals, hashCode

Field Detail

i

public final int i

e

public final E e

Constructor Detail

Ord

public Ord(int i,
   E e)

Creates an Ord.

Method Detail

of

public static <E> Ord<E> of(int n,
            E e)

Creates an Ord.

zip

public static <E> Iterable<Ord<E>> zip(Iterable<? extends E> iterable)

Creates an iterable of Ords over an iterable.

zip

public static <E> Iterator<Ord<E>> zip(Iterator<? extends E> iterator)

Creates an iterator of Ords over an iterator.

zip

public static <E> List<Ord<E>> zip(E[] elements)

Returns a numbered list based on an array.

zip

public static <E> List<Ord<E>> zip(List<? extends E> elements)

Returns a numbered list.

reverse

public static <E> Iterable<Ord<E>> reverse(E... elements)

Iterates over an array in reverse order.

Given the array ["a", "b", "c"], returns (2, "c") then (1, "b") then (0, "a").

reverse

public static <E> Iterable<Ord<E>> reverse(Iterable<? extends E> elements)

Iterates over a list in reverse order.

Given the list ["a", "b", "c"], returns (2, "c") then (1, "b") then (0, "a").

getKey

public Integer getKey()

Specified by:

getKey in interface Map.Entry<Integer,E>

getValue

public E getValue()

Specified by:

getValue in interface Map.Entry<Integer,E>

setValue

public E setValue(E value)

Specified by:

setValue in interface Map.Entry<Integer,E>