io.permazen.tuple

Class Tuple1<V1>

java.lang.Object

io.permazen.tuple.Tuple1<V1>

Type Parameters:

V1 - value type

All Implemented Interfaces:

Has1<V1>, Tuple

public class Tuple1<V1>
extends Object

A "tuple" of one value.

Instances are immutable.

Constructor Summary

Constructors

Constructor and Description
Tuple1(V1 v1) Constructor.

Method Summary

Modifier and Type	Method and Description
List<Object>	asList() View this instance as a list.
boolean	equals(Object obj) Compare for equality.
int	getSize() Get the number of values in this tuple.
V1	getValue1() Get the first value.
int	hashCode() Compute hash code.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Tuple1

public Tuple1(V1 v1)

Constructor.

Parameters:

v1 - the value

Method Detail

getValue1

public V1 getValue1()

Description copied from interface: Has1

Get the first value.

Specified by:

getValue1 in interface Has1<V1>

Returns:

first value in this tuple

getSize

public int getSize()

Description copied from interface: Tuple

Get the number of values in this tuple.

Specified by:

getSize in interface Tuple

Returns:

the size of this tuple

asList

public List<Object> asList()

Description copied from interface: Tuple

View this instance as a list.

Specified by:

asList in interface Tuple

Returns:

unmodifiable List view of this tuple

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object obj)

Description copied from interface: Tuple

Compare for equality.

Tuples are equal if they have the same size and the corresponding individual values are equal (or null).

Specified by:

equals in interface Tuple

Overrides:

equals in class Object

hashCode

public int hashCode()

Description copied from interface: Tuple

Compute hash code.

The hash code of a tuple is the exclusive-OR of the hash codes of the individual values (using zero for null values).

Specified by:

hashCode in interface Tuple

Overrides:

hashCode in class Object