java的tuple库

 

avatuples is one of the simplest java libraries ever made. Its aim is to provide a set of java classes that allow you to work with tuples.

Tuples? What are tuples?

A tuple is just a sequence of objects that do not necessarily relate to each other in any way. For example: [23, "Saturn", java.sql.Connection@li734s] can be considered a tuple of three elements (a triplet) containing an Integer, a String, and a JDBC Connection object. As simple as that.

 

地址： https://www.javatuples.org/

样例参考： https://www.baeldung.com/java-tuples

 

<!-- https://mvnrepository.com/artifact/org.javatuples/javatuples -->
<dependency>
    <groupId>org.javatuples</groupId>
    <artifactId>javatuples</artifactId>
    <version>1.2</version>
</dependency>

 

 

 

javatuples offers you tuple classes from one to ten elements:

• Unit<A> (1 element)
• Pair<A,B> (2 elements)
• Triplet<A,B,C> (3 elements)
• Quartet<A,B,C,D> (4 elements)
• Quintet<A,B,C,D,E> (5 elements)
• Sextet<A,B,C,D,E,F> (6 elements)
• Septet<A,B,C,D,E,F,G> (7 elements)
• Octet<A,B,C,D,E,F,G,H> (8 elements)
• Ennead<A,B,C,D,E,F,G,H,I> (9 elements)
• Decade<A,B,C,D,E,F,G,H,I,J> (10 elements)

Plus a couple of very common 2-element tuple classes equivalent to Pair, just for the sake of code semantics:

• KeyValue<A,B>
• LabelValue<A,B>

All tuple classes are:

• Typesafe
• Immutable
• Iterable
• Serializable
• Comparable (implements Comparable<Tuple>)
• Implementing equals(...) and hashCode()
• Implementing toString()