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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...

Specifying Dependencies

Official Documentation

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....

Portal Developer Properties

Official Documentation

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...

Using an OSGi Service

Official Documentation

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: ...

Using the Gogo Shell

Official Documentation

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...

Command Line Gogo Shell

Official Documentation

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...

Gogo Shell Commands

Official Documentation

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...

Using Upgrade Processes in Earlier Versions

Official Documentation

Using Upgrade Processes in Earlier Versions Liferay DXP 7.4 U10/Portal 7.4 GA14 and Below Follow these steps to create an upgrade process for your module: Open your module's bnd.bnd file, and...

Logs

Official Documentation

Logs The OSGi Log Service Extender enables bundles to provide OSGi logging configuration using embedded properties files META-INF/osgi-logging.properties or META-INF/osgi-logging-ext.properties....

Advanced Queries

Official Documentation

Advanced Queries Service Builder doesn't limit you to elements in service.xml. If simple finders aren't sufficient for getting data out of your application, there are three other ways to make the...

React Component Utilities Reference

Official Documentation

React Component Utilities Reference Several useful tools are available to help you build high-performance components and applications in Liferay DXP using React: frontend-js-react-web module ...

Listening for Registration Events

Official Documentation

Listening for Registration Events Liferay DXP 2023.Q3/Portal GA92 and Below The messaging API supports listening for destination and message listener registration events. Here are some reasons to...

Using Asynchronous Messaging

Official Documentation

Using Asynchronous Messaging Message Bus's asynchronous option provides fire and forget behavior; send a message and continue processing without waiting for a response. An asynchronous message is...

Using Default Synchronous Messaging in Previous Versions

Official Documentation

Using Default Synchronous Messaging in Previous Versions Liferay DXP 7.4 U48/Portal GA49 and Below In default synchronous messaging, the sender blocks while a Message Bus thread dispatches the...

Aggregating Resource Bundles

Official Documentation

Aggregating Resource Bundles When working with a module that shares localized messages, the bnd header must specify the resource bundles you want to associate with the module. Liferay provides a...

Working with Client Extensions

Official Documentation

Working with Client Extensions Liferay Self-Hosted Liferay SaaS Liferay PaaS Liferay 7.4 Using client extensions, you can extend Liferay without deploying OSGi modules. Just like traditional...

Using Direct Synchronous Messaging in Previous Versions

Official Documentation

Using Direct Synchronous Messaging in Previous Versions Liferay DXP 7.4 U48/Portal GA49 and Below Direct synchronous messaging is the easiest way to block processing until all listeners receive a...

Fundamentals

Official Documentation

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...

Customizing Liferay's Look and Feel

Official Documentation

Customizing Liferay's Look and Feel One of the easiest ways to get started developing on Liferay's platform is to modify its look and feel. You can change everything from its favicon to its entire...

Language Client Extensions

Official Documentation

Language Client Extensions Liferay DXP 2025.Q1+/Portal GA132+ A language client extension adds new language keys or overrides existing keys and their translations. For example, you can translate...

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