Package 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.

Field Summary

Fields

Modifier and Type	Field	Description
final E	e
final int	i

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
boolean	equals(@Nullable Object obj)
static <T> void	forEach(Iterable<T> iterable, ObjIntConsumer<? super T> action)	Applies an action to every element of an iterable, passing the zero-based ordinal of the element to the action.
static <T> void	forEach(T[] ts, ObjIntConsumer<? super T> action)	Applies an action to every element of an array, passing the zero-based ordinal of the element to the action.
Integer	getKey()
E	getValue()
int	hashCode()
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, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Details

i

public final int i

e

public final E e

Constructor Details

Ord

public Ord(int i,
 E e)

Creates an Ord.

Method Details

of

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

Creates an Ord.

hashCode

public int hashCode()

Specified by:

hashCode in interface Map.Entry<Integer,E>

Overrides:

hashCode in class Object

equals

public boolean equals(@Nullable Object obj)

Specified by:

equals in interface Map.Entry<Integer,E>

Overrides:

equals in class Object

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

@SafeVarargs
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>

forEach

public static <T> void forEach(Iterable<T> iterable,
 ObjIntConsumer<? super T> action)

Applies an action to every element of an iterable, passing the zero-based ordinal of the element to the action.

Type Parameters:

T - Element type

Parameters:

iterable - Iterable

action - The action to be performed for each element

See Also:

• Iterable.forEach(java.util.function.Consumer)
• Map.forEach(java.util.function.BiConsumer)

forEach

public static <T> void forEach(T[] ts,
 ObjIntConsumer<? super T> action)

Applies an action to every element of an array, passing the zero-based ordinal of the element to the action.

Type Parameters:

T - Element type

Parameters:

ts - Array

action - The action to be performed for each element

See Also:

• Iterable.forEach(java.util.function.Consumer)
• Map.forEach(java.util.function.BiConsumer)