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UI Architecture
Published Date: Nov 22, 2024 10:50 PM
Building Liferay Source
Building Liferay Source This section aims to provide instructions for building Liferay Portal from source as quickly as possible. Using a nightly snapshot bundle no longer requires a full build...
Published Date: Nov 22, 2024 10:50 PM
Module Life Cycle
Module Life Cycle In OSGi, all components, Java classes, resources, and descriptors are deployed via modules (OSGi bundles). The MANIFEST.MF file describes the module's physical characteristics,...
Published Date: Nov 22, 2024 10:50 PM
The Benefits of Modularity
The Benefits of Modularity Dictionary.com defines modularity as the use of individually distinct functional units, as in assembling an electronic or mechanical system. The distinct functional units...
Published Date: May 9, 2024 6:55 PM
Contributing to Liferay Development
Contributing to Liferay Development The first thing to do in learning to fix bugs or contributing a feature is to become familiar with how to build the system. The Liferay Portal build system now...
Published Date: Nov 22, 2024 10:50 PM
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: Nov 22, 2024 10:50 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, 2024 4:48 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, 2024 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, 2024 8:39 PM
Adding a Language
Adding a Language Liferay ships with over 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 its own...
Published Date: Jul 18, 2024 8:39 PM
Overriding Module Language Translations
Overriding Module Language Translations For Liferay DXP 7.4 U4/Portal 7.4 GA8+, the Language Override tool is the recommended approach. Overriding language translations in specific applications...
Published Date: Jul 18, 2024 8:39 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, 2024 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, 2024 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, 2024 8:39 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, 2024 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, 2024 8:39 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, 2024 8:39 PM
APIs as OSGi Services
APIs as OSGi Services After you've learned what a module is and how to deploy one, you can use modules to define APIs and implement them. Liferay APIs are OSGi services, defined by Java interfaces...
Published Date: Nov 22, 2024 10:50 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: Nov 22, 2024 10:50 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: Nov 22, 2024 10:50 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, 2024 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: Nov 22, 2024 10:50 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: Nov 22, 2024 10:50 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: Nov 22, 2024 10:50 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, 2024 6:55 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: Jan 18, 2025 2:48 AM
Finding Artifacts
Finding Artifacts To use external artifacts in your project, you must configure their dependencies in your build.gradle Gradle script. Before specifying an artifact as a dependency, you must first...
Published Date: Nov 22, 2024 10:50 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: Nov 22, 2024 10:50 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: Nov 22, 2024 10:50 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, 2024 4:07 PM
Configuring Dependencies
Configuring Dependencies Liferay provides a container where modules can publish and consume functionality through their Java packages. Modules can leverage packages from other modules or...
Published Date: Nov 22, 2024 10:50 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: Nov 22, 2024 10:50 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: Nov 22, 2024 10:50 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: Nov 22, 2024 10:50 PM
Reference
Reference 7.4 Breaking Changes 7.3 Breaking Changes 7.2 Breaking Changes Exported Third-Party Packages Portal Developer Properties
Published Date: Nov 22, 2024 10:50 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, 2024 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: Nov 22, 2024 10:50 PM
Become a Publisher
Become a Publisher To publish apps or solutions on Marketplace, you need a Liferay account with publisher permissions. Becoming a publisher is free, but you must submit a request with relevant...
Published Date: Aug 16, 2024 3:45 PM
Connecting Liferay DXP to Marketplace
Connecting Liferay DXP to Marketplace Liferay DXP 2025.Q1+/GA132+ Currently, this feature is behind a release feature flag (LPD-35941). Read Release Feature Flags for more information. You can...
Published Date: Apr 15, 2025 4:54 PM
Liferay Labs
Liferay Labs Liferay Labs is an innovation hub within Liferay Marketplace dedicated to exploring newer technologies and developing experimental features. It provides a wide range of useful...
Published Date: Jan 7, 2025 4:36 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, 2024 3:11 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, 2024 6:55 PM
Publishing Apps in Marketplace
Publishing Apps in Marketplace The Liferay Marketplace contains Cloud apps (for Liferay SaaS, PaaS, and self-hosted) and DXP apps (for Liferay PaaS and Liferay Self-Hosted). As a publisher, you may...
Published Date: Aug 16, 2024 3:45 PM
Marketplace
Marketplace Liferay Marketplace is a platform where you can find, download, and share apps. It features an updated UI and supports Liferay SaaS. To access Marketplace, visit...
Published Date: Aug 16, 2024 3:45 PM
Provisioning Cloud Apps
Provisioning Cloud Apps You can provision cloud apps to your Liferay instance and start using them immediately. Unlike DXP apps, cloud apps integrate with Liferay SaaS directly and don't require...
Published Date: Feb 11, 2025 12:35 PM
Publishing Solutions in Marketplace
Publishing Solutions in Marketplace The Liferay Marketplace contains business solutions to improve productivity and reduce time to market. Currently, only existing Liferay partners can publish a...
Published Date: Aug 31, 2024 7:45 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, 2024 6:54 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, 2024 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, 2024 6:54 PM
Defining Object Actions
Defining Object Actions Liferay 7.4 U60+/GA60+ Object actions define operations that you can run manually or automatically for object entry events. To add an action, Open the Global Menu (...
Published Date: May 9, 2024 6:54 PM
Understanding Action Types
Understanding Action Types Liferay 7.4 U60+/GA60+ Actions define custom operations triggered by object entry events. Liferay provides these action types: TypeDescription NotificationSend email or...
Published Date: May 9, 2024 6:54 PM
Using Manual Actions
Using Manual Actions Liferay 7.4 U60+/GA60+ When you use the standalone trigger for object actions, the actions become manual instead of automatic. Trigger these actions using these methods: ...
Published Date: May 9, 2024 6:54 PM
Creating Objects
Creating Objects Liferay DXP 2023.Q4+/Portal GA102+ Liferay Objects provides development capabilities in the Liferay UI. Using Objects, you can build fully integrated Liferay applications without...
Published Date: May 9, 2024 6:54 PM
Deleting Objects
Deleting Objects Liferay 7.4 U26+/GA26+ You can delete draft and published object definitions. Deleting a definition removes its associated data, including the stored entries for published...
Published Date: May 9, 2024 6:54 PM
Fields
Fields Liferay DXP 2023.Q4+/Portal GA102+ Object fields are data definitions that represent database columns and store different types of values. All objects include default system fields, but you...
Published Date: May 9, 2024 6:54 PM
Auto-Increment Fields
Auto-Increment Fields DXP 2024.Q1+/Portal GA112+ Auto-Increment fields are configurable read-only fields for uniquely identifying object entries in a human-readable format. For example, an IT...
Published Date: May 9, 2024 6:54 PM
Extending System Objects
Extending System Objects Liferay 7.4 U86+/GA86+ With Liferay Objects, you can extend supported system services. Currently, only these services are integrated with the Objects framework: Account...
Published Date: May 9, 2024 6:54 PM
Adding and Managing Custom States
Adding and Managing Custom States Liferay 7.4+ Some use cases may require assigning multiple states to an object entry at the same time. For example, when building an Order application, you may...
Published Date: May 9, 2024 6:54 PM
Attachment Fields
Attachment Fields Attachment fields are for uploading files to your instance's Document Library. When uploaded, the file is linked to the entry's attachment field, and each field can only be linked...
Published Date: May 9, 2024 6:54 PM
Activating and Deactivating Objects
Activating and Deactivating Objects Custom objects are activated when published. While active, you can use the object to create entries via the Liferay UI or dedicated REST APIs. If needed, you can...
Published Date: May 9, 2024 6:54 PM

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