![]() ![]() This is done in the company-rootpom.xmlįirst, set the desired version for the JUnit in the properties section. So, the QA department wants everyone working in any project to use the JUnit 4 version with the test scope, which defines what is needed only in test phases and not the normal use of the app). The projects don't define the versions themselves, rather the people who control the company-root project and 'enforce' the child projects on what to use. This is really useful when having dozens or more projects because you know exactly what version of dependencies they have. We are going to define the usage of the JUnit framework, version, and scope for the projects below company-root. So, what we are going to do is define the company-root pom.xml as a base/parent project, define the dependencies that are going to be used, and set the versioning and the child projects. We are going to define versioning in the properties but will explain later.Ī very important use of the dependency management section is to control, consolidate, and centralize the versions of artifacts used in dependencies and inherited by all children. Their values are accessible anywhere within POM using the notation $ where X is the property. POM is basically a container of sub-modules. The packaging tag defines the type of project, which is a type of POM: pom The following are the important parts of the pom.xml: Now, we begin by creating a POM project company-root similar in the picture. I used NetBeans 8.2, but it can be accomplished with simple mvn commands. This is the desired structure we want to accomplish: Likewise, let's not forget that we are not only working with developers but DevOps and management teams, who have to coordinate the entire process so it can run smoothly.īelow, we are going to see how Maven can make our lives a lot easier. Besides that, we have to deal with the environment we are working with, which may consist of many projects, large or small, external projects, libraries, shared modules, utilities, and many others. ![]() ![]() When dealing with large-scale software, we have to communicate, work, and cooperate with a lot of people - whether in an organization or a community. So, with that in mind, let's get started. ![]() This article will not cover Maven basics. However, if you are not familiar with Maven, I highly recommend reading this article first and getting some experience using Maven. Perhaps MNG-4565 will be implemented as a feature in some future version of Maven.In this article, we are going to look at how to implement a multi-module project in Maven with versioning and dependency management, as well as the best practices for building big, large-scale projects from both a developer perspective and a DevOps/management perspective. This is an approach that can be used in Maven 2/3. Target/weblogic-portlet-war-activation.tmp It does not work in a sub-module (like a war project), because the temporary file is created after all of the profiles have been activated.Įxample: Only include Xerces as a dependency for portlet WAR projects that are to be deployed on WebLogic: this only works when Maven is executed in a directory that contains a parent pom. Using this knowledge of profile execution, I came up with a way of activating profiles when multiple conditions are true, based on the presence of a temporary file whose name has one or more property values. All other profiles that might conditionally activate, such as profiles that activate based on the existence of a file in the current module.Profiles that were specified with the "-P" command line switch, according to their order of appearance in the pom.When Maven executes profiles, it executes them in the following manner: Although the element in pom.xml lets you specify more than one condition, the conditions are evaluated with the OR operator rather than the AND operator. When working with Maven profiles, sometimes you need to activate a profile when multiple conditions are true. ![]()
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