README.asciidoc

   1 = Generic Types image:https://img.shields.io/badge/email-%40metio-brightgreen.svg?style=social&label=mail["Discuss on Google Groups", link="https://groups.google.com/forum/#!forum/metio"] image:https://img.shields.io/badge/irc-%23metio.wtf-brightgreen.svg?style=social&label=IRC["Chat on IRC", link="http://webchat.freenode.net/?channels=metio.wtf"]
   2 Sebastian Hoß <http://seb.xn--ho-hia.de/[@sebhoss]>
   3 :github-org: sebhoss
   4 :project-name: generic-types
   5 :project-group: de.xn--ho-hia.utils.types
   6 :coverity-project: 7620
   7 :codacy-project: 9402c820df454d3a83c697f254aeb1b3
   8 :toc:
   9 :toc-placement: preamble
  10
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  13 pass:[<span class="image"><a class="image" href="https://www.javadoc.io/doc/de.xn--ho-hia.utils.types/generic-types"><img src="https://www.javadoc.io/badge/de.xn--ho-hia.utils.types/generic-types.svg?style=flat-square&color=blue" alt="Read JavaDocs"></a></span>]
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  24
  25 This https://www.java.com[Java] library provides a factory to create generic `java.lang.reflect.Type` variations, such as `Map<Number, Point>`.
  26
  27 === Features
  28
  29 * Factory methods to create generic types, including wildcards.
  30
  31 === Development Status
  32
  33 All currently required feature are implemented. This project is in maintenance mode.
  34
  35
  36 == Usage
  37
  38 [source,java]
  39 ----
  40 // Map<Number, Point>
  41 final Type type = GenericTypes.generic(Map.class, Number.class, Point.class);
  42
  43 // List<Number>
  44 final Type type = GenericTypes.generic(List.class, Number.class);
  45 ----
  46
  47 Super- and subtypes such as `List<? super Point>` or `List<? extends Number>` can be created in the following way:
  48
  49 [source,java]
  50 ----
  51 // List<? super Point>
  52 final Type type = GenericTypes.generic(List.class, GenericTypes.supertype(Point.class));
  53
  54 // List<? extends Number>
  55 final Type type = GenericTypes.generic(List.class, GenericTypes.subtype(Number.class));
  56 ----
  57
  58 Use static imports to shorten the above calls to:
  59
  60 [source,java]
  61 ----
  62 // List<? super Point>
  63 final Type type = generic(List.class, supertype(Point.class));
  64
  65 // List<? extends Number>
  66 final Type type = generic(List.class, subtype(Number.class));
  67 ----
  68
  69 and then go crazy with this:
  70
  71 [source,java]
  72 ----
  73 // List<Map<? extends Number, ? super Point>>
  74 final Type type = generic(List.class, generic(Map.class, subtype(Number.class), supertype(Point.class)));
  75 ----
  76
  77 === Integration
  78
  79 To use this project just declare the following dependency inside your POM:
  80
  81 [source,xml,subs="attributes,verbatim"]
  82 ----
  83 <dependencies>
  84   <dependency>
  85     <groupId>{project-group}</groupId>
  86     <artifactId>{project-name}</artifactId>
  87     <version>${version.generic-types}</version>
  88   </dependency>
  89 </dependencies>
  90 ----
  91
  92 Replace `${version.generic-types}` with the pass:[<a href="http://search.maven.org/#search%7Cga%7C1%7Cg%3Ade.xn--ho-hia.utils.types%20a%3Ageneric-types">latest release</a>]. This project follows the link:http://semver.org/[semantic versioning guidelines].
  93
  94
  95 === Compatibility
  96
  97 This project is compatible with the following Java versions:
  98
  99 .Java compatibility
 100 |===
 101 | | 1.X.Y | 2.X.Y
 102
 103 | Java 8
 104 | ✓
 105 | ✓
 106 |===
 107
 108 == License
 109
 110 To the extent possible under law, the author(s) have dedicated all copyright
 111 and related and neighboring rights to this software to the public domain
 112 worldwide. This software is distributed without any warranty.
 113
 114 You should have received a copy of the CC0 Public Domain Dedication along
 115 with this software. If not, see http://creativecommons.org/publicdomain/zero/1.0/.
 116
 117 == Mirrors
 118
 119 * https://github.com/sebhoss/{project-name}
 120 * https://bitbucket.org/sebhoss/{project-name}
 121 * https://gitlab.com/sebastian.hoss/{project-name}
 122 * http://v2.pikacode.com/sebhoss/{project-name}.java
 123 * http://repo.or.cz/{project-name}.git