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Deployment Approach
Organizing the Source
Organizing the Source It is important to have a solid understanding of how the Liferay source is organized when working on fixing a bug or adding a new feature to the product. The Liferay Source...
Published Date: May 9, 24, 6:55 PM
Extending Liferay
Extending Liferay Liferay DXP/Portal is highly customizable. Its modular architecture contains components you can extend and override dynamically using APIs.
Published Date: Jul 18, 24, 8:39 PM
Creating a Model Listener
Creating a Model Listener Model listeners listen for persistence method calls that signal changes to a specified model (such as update or add methods). Most of the methods model listeners use are...
Published Date: Jul 18, 24, 8:39 PM
Customizing Localization
Customizing Localization Liferay ships with 55 translations, making it ideal for deployments all over the world. Sometimes, however, you must modify a translation or provide a new one. Here you can...
Published Date: Jul 18, 24, 4:48 PM
Creating Service Wrappers
Creating Service Wrappers With Service Wrappers, you can override default service methods to add extra functionality. For example, you may want the value of a field you've added to Liferay's User...
Published Date: Jul 18, 24, 8:39 PM
Customizing JSPs with Dynamic Includes
Customizing JSPs with Dynamic Includes The liferay-util:dynamic-include tag is a placeholder into which you can inject content---JavaScript code, HTML, and more. The example project demonstrates...
Published Date: Jul 18, 24, 8:39 PM
Adding a Language
Adding a Language Liferay currently supports about 50 languages out-of-the-box. Translation is complete for many of these languages, and some are still in the translation process. Each language has...
Published Date: Jul 18, 24, 8:39 PM
Generating Translations Automatically
Generating Translations Automatically Liferay DXP supports 50 languages out-of-the-box. Each locale has its own language properties file containing keys for its language. When you create an...
Published Date: Jul 18, 24, 8:39 PM
Overriding Global Language Translations with Language Properties
Overriding Global Language Translations with Language Properties Liferay DXP/Portal implements headings, labels, and messages for many locales using language translations. You can override these...
Published Date: Jul 18, 24, 8:39 PM
Overriding Module Language Translations in Earlier Versions
Overriding Module Language Translations in Earlier Versions For Liferay DXP 7.4 U4 (Update 4) and above or Liferay Portal 7.4 GA8 and above, the Language Override tool is the recommended approach....
Published Date: Jul 18, 24, 8:39 PM
Overriding OSGi Services
Overriding OSGi Services Liferay's OSGi container is a dynamic environment in which services can be added, removed, or overridden as needed. This framework registers Liferay components with the...
Published Date: Jul 18, 24, 8:39 PM
Using Custom SQL Queries
Using Custom SQL Queries Service Builder creates finder methods that retrieve entities by their attributes (their column values). When you add a column as a parameter for the finder in your...
Published Date: Sep 6, 24, 3:37 PM
Using Portlet Filters
Using Portlet Filters Portlet filters intercept requests and responses at the start of each portlet request processing phase so you can add functionality there. This makes them useful for auditing...
Published Date: Jul 18, 24, 8:39 PM
Using Servlet Filters
Using Servlet Filters Servlet filters can both pre-process requests as they arrive and post-process responses before they go to the client browser. You can apply functionality to requests and...
Published Date: Oct 18, 24, 4:07 PM
Fundamentals
Fundamentals Liferay development projects consist primarily of simple .jar files. These contain a few extra configuration files that make them OSGi modules, but they're easily understandable by...
Published Date: May 9, 24, 6:55 PM
Resolving Third Party Library Package Dependencies
Resolving Third Party Library Package Dependencies An application can rely on multiple OSGi modules. Resolving their Java package dependencies can be challenging. In a perfect world, every package...
Published Date: May 9, 24, 6:55 PM
Exporting Packages
Exporting Packages In OSGi, packages are private by default. You must explicitly exporting a package so other modules can import and use them. Here's how to export packages: Open your bnd.bnd...
Published Date: May 9, 24, 6:55 PM
Importing Packages
Importing Packages You often find yourself in a position of needing functionality provided by another module. To access this functionality, you must import packages from other modules into your...
Published Date: May 9, 24, 6:55 PM
Semantic Versioning
Semantic Versioning Semantic Versioning is a three tiered versioning system for incrementing version numbers based on the degree of API change made in a releasable software component. It's a...
Published Date: May 9, 24, 6:55 PM
Specifying Dependencies
Specifying Dependencies You must satisfy all dependencies to compile and deploy a module successfully. After you find the dependency artifacts, add them as dependencies in your Gradle build file....
Published Date: May 9, 24, 6:55 PM
Module Projects
Module Projects Liferay applications and customizations are OSGi modules: .jar files containing Java code and some extra configuration for publishing and consuming APIs. A module project comprises...
Published Date: May 9, 24, 6:55 PM
Using an OSGi Service
Using an OSGi Service Liferay APIs are readily available as OSGi services. You can access a service by creating a field of that service type and annotating the field with @Reference, like this: ...
Published Date: May 9, 24, 6:55 PM
7.4 Breaking Changes
7.4 Breaking Changes Breaking changes break or significantly alter existing functionality or code structure. Here are all of the breaking changes for Liferay 7.4, starting with the latest quarterly...
Published Date: May 9, 24, 6:55 PM
7.2 Breaking Changes
7.2 Breaking Changes This document presents a chronological list of changes that break existing functionality, APIs, or contracts with third party Liferay developers or users. We try our best to...
Published Date: May 9, 24, 6:55 PM
Using the Gogo Shell
Using the Gogo Shell The Gogo shell provides a way to interact with the module framework. Among other things, you can Dynamically install/uninstall bundles (modules) Examine package...
Published Date: May 9, 24, 6:55 PM
Command Line Gogo Shell
Command Line Gogo Shell If you're in a development environment, you can interact with the module framework locally from the command line. Gogo shell should only be run from the command line in...
Published Date: May 9, 24, 6:55 PM
Gogo Shell Commands
Gogo Shell Commands The Gogo shell executes Felix Gogo basic commands and Liferay commands. The Gogo shell is accessible in the Control Panel (recommended) and from the command line. Here are some...
Published Date: May 9, 24, 6:55 PM
Reference
Reference 7.4 Breaking Changes 7.3 Breaking Changes 7.2 Breaking Changes Exported Third-Party Packages Portal Developer Properties
Published Date: May 9, 24, 6:55 PM
7.3 Breaking Changes
7.3 Breaking Changes This document presents a chronological list of changes that break existing functionality, APIs, or contracts with third party Liferay developers or users. We try our best to...
Published Date: May 9, 24, 6:55 PM
Exported Third Party Packages
Exported Third Party Packages Liferay provides over one-hundred third party Java packages at run time. The com.liferay.portal.bootstrap module exports the packages by specifying individual packages...
Published Date: May 9, 24, 6:55 PM
Portal Developer Properties
Portal Developer Properties There are Portal Properties that facilitate development. Liferay's portal-developer.properties file includes all of them. The portal-developer.properties file is enabled...
Published Date: May 9, 24, 6:55 PM
Provisioning DXP Apps
Provisioning DXP Apps Free apps can be downloaded, deployed to Liferay DXP, and used immediately without deploying a license. Paid apps have trial, developer, or standard licenses based on the...
Published Date: Nov 8, 24, 3:11 PM
Publishing Apps in Marketplace
Publishing Apps in Marketplace The Liferay Marketplace contains both Cloud apps (for Liferay SaaS, PaaS, and self-hosted) and DXP apps (for Liferay PaaS and Liferay Self-Hosted). As a publisher,...
Published Date: Aug 16, 24, 3:45 PM
Publishing Solutions in Marketplace
Publishing Solutions in Marketplace The Liferay Marketplace contains business solutions you can use to improve productivity and reduce your time to market. Currently, only existing Liferay partners...
Published Date: Aug 31, 24, 7:45 PM
Creating and Managing Objects
Creating and Managing Objects Liferay 7.4+ Liferay Objects provides a convenient UI for creating custom applications that meet your business needs without writing code. You can also use Objects to...
Published Date: May 9, 24, 6:54 PM
Actions
Actions Object actions define custom business logic that you can run manually or automatically for object entry events. Examples include delivering entry event data to a webhook URL, sending email...
Published Date: May 9, 24, 6:54 PM
Become a Publisher
Become a Publisher To publish apps and solutions on the Marketplace, you must have a Liferay account with additional publisher permissions. It is free to become a publisher, but you must submit a...
Published Date: Aug 16, 24, 3:45 PM
Marketplace
Marketplace Liferay's new Marketplace is a platform where you find, download, and share apps. It comes with a revamped UI and also supports Liferay SaaS. To access the new Marketplace, go to...
Published Date: Aug 16, 24, 3:45 PM
Objects
Objects Liferay 7.4+ With Liferay Objects, you can build and deliver applications without having to write code or deploy modules. Each application built with Objects is integrated with Liferay's...
Published Date: May 9, 24, 6:54 PM
Adding Fields to Objects
Adding Fields to Objects Liferay 7.4 2023.Q4+/GA102+ Fields are data definitions that represent database columns and store different types of values. By default, all objects include these system...
Published Date: May 9, 24, 6:54 PM

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