Java 代码 Lombok
2012-03-22 16:39:44| 分类：
Java
| 标签：
|举报
|字号大中小 订阅
Lombok 是一种 Java? 实用工具，可用来帮助开发人员消除 Java 的冗长，尤其是对于简单的 Java 对象（POJO）。它通过注释实现这一目的。通过在开发环境中实现 Lombok，开发人员可以节省构建诸如 hashCode() 和equals() 这样的方法以及以往用来分类各种 accessor 和 mutator 的大量时间。Lombok features
@Getter / @Setter- Never write
public int getFoo() {return foo;} again. @Getter(lazy=true)- Laziness is a virtue!
@ToString- No need to start a debugger to see your fields: Just let lombok generate a
toString for you! @EqualsAndHashCode- Equality made easy: Generates
hashCode and equals implementations from the fields of your object. @NoArgsConstructor, @RequiredArgsConstructor and @AllArgsConstructor- Constructors made to order: Generates constructors that take no arguments, one argument per final / non-null field, or one argument for every field.
@Data- All together now: A shortcut for
@ToString, @EqualsAndHashCode, @Getter on all fields, and @Setter on all non-final fields, and@RequiredArgsConstructor! @Cleanup- Automatic resource management: Call your
close() methods safely with no hassle. @Synchronizedsynchronized done right: Don't expose your locks.@SneakyThrows- To boldly throw checked exceptions where no one has thrown them before!
@Log- Captain's Log, stardate 24435.7: "What was that line again?"
val- Finally! Hassle-free final local variables.
@Delegate- Don't lose your composition.
The documentation above is a lot easier to follow, but if you want to build your own transformations, or you want to add javadoc to
lombok.jar in your IDE, you can also check out
the javadoc.
Running Lombok
On eclipse
Execute lombok.jar (doubleclick it, or run java -jar lombok.jar). Follow instructions.On javac (and maven, ant, and other build tools)
Include lombok.jar on the classpath as you compile. That's all there is to it!Lombok hosts its own maven repository, so adding lombok to maven is very simple. full instructions are here.On GWT (Google Widget Toolkit)
See gwt setup.On javadoc, and other source-based tools
Use delombok first, then run javadoc or GWT on the delombok-ed code.Running delombok
Delombok copies your source files to another directory, replacing all lombok annotations with their desugared form. So, it'll turn
@Getter back into the actual getter. It then removes the annotation. This is useful for all sorts of reasons; you can check out what's happening under the hood, if the unthinkable happens and you want to stop using lombok, you can easily remove all traces of it in your source, and you can use delombok to preprocess your source files for source-level tools such as javadoc and GWT. More information about how to run delombok, including instructions for build tools can be found at the
delombok page.
评论这张
转发至微博
转发至微博
关闭
玩LOFTER，免费冲印20张照片，人人有奖！
我要抢>
<#--最新日志，群博日志-->
<#--推荐日志-->
<#--引用记录-->
<#--博主推荐-->
<#--随机阅读-->
<#--首页推荐-->
<#--历史上的今天-->
<#--被推荐日志-->
<#--上一篇，下一篇-->
<#-- 热度 -->
<#-- 网易新闻广告 -->
<#--右边模块结构-->
<#--评论模块结构-->
<#--引用模块结构-->
<#--博主发起的投票-->
评论