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- #COMPILING JAVA USING HADOOP ARCHIVE#
- #COMPILING JAVA USING HADOOP CODE#
- #COMPILING JAVA USING HADOOP DOWNLOAD#
This goal copies all of the resources from src/main/resources and any other configured resource directories to the output directory.
#COMPILING JAVA USING HADOOP CODE#
Examples of goals include the compile goal in the Compiler plugin, which compiles all of the source code for a project, or the test goal of the Surefire plugin, which can execute unit tests. A custom plugin can be written in Java, or a plugin can be written in any number of languages including Ant, Groovy, beanshell, and, as previously mentioned, Ruby.Ī goal is a specific task that may be executed as a standalone goal or along with other goals as part of a larger build. Maven also provides for the ability to define custom plugins. Other, more specialized Maven plugins include plugins like the Hibernate3 plugin for integration with the popular persistence library Hibernate, the JRuby plugin which allows you to execute ruby as part of a Maven build or to write Maven plugins in Ruby.
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Examples of Maven plugins can be simple core plugins like the Jar plugin, which contains goals for creating JAR files, Compiler plugin, which contains goals for compiling source code and unit tests, or the Surefire plugin, which contains goals for executing unit tests and generating reports. artifact :maven-archetype-quickstart: \Ī Maven Plugin is a collection of one or more goals. When Maven executes a plugin goal, it prints out the plugin identifier and goal identifier to standard output: $ mvn archetype:generate -DgroupId= \ To execute a single Maven plugin goal, we used the syntax mvn archetype:generate, where archetype is the identifier of a plugin and generate is the identifier of a goal. The ability to locate an artifact in a repository based on Maven coordinates gives us the ability to define dependencies in a project’s POM. In the previous mentioned simple pom example, Maven resolved the coordinates of the JUnit dependency -+junit:junit:3.8.1+- to a path in a Maven repository /junit/junit/3.8.1/junit-3.8.1.jar. On Unix systems, your local Maven repository is available in ~/.m2/repository.
#COMPILING JAVA USING HADOOP DOWNLOAD#
Once Maven has downloaded an artifact from the remote Maven repository it never needs to download that artifact again as Maven will always look for the artifact in the local repository before looking elsewhere.
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Maven downloads artifacts and plugins from a remote repository to your local machine and stores these artifacts in your local Maven repository. The standard for a Maven repository is to store an artifact in the following directory relative to the root of the repository: ////. A repository is a collection of project artifacts stored in a directory structure that closely matches a project’s Maven coordinates. In Maven, artifacts and plugins are retrieved from a remote repository when they are needed.
#COMPILING JAVA USING HADOOP ARCHIVE#
A project with packaging jar produces a JAR archive a project with packaging war produces a web application. packaging - The type of project, defaulting to jar, describing the packaged output produced by a project.Projects undergoing active development can use a special identifier that marks a version as a SNAPSHOT. Projects that have been released have a fixed version identifier that refers to a specific version of the project. version - A specific release of a project.artifactId - A unique identifier under groupId that represents a single project.The convention for group identifiers is that they begin with the reverse domain name of the organization that creates the project groupid - The group, company, team, organization, project, or other group.The dependencies element defines a single, test-scoped dependency on a unit testing framework called junit. This pom.xml is the basic POM, the first few elements groupid, artifactid, packaging, version are known as maven coordinates which uniquely identify a project name, url are descriptive elements of the pom.