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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...
APIs as OSGi Services
Official Documentation
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...
Configuring Dependencies
Official Documentation
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...
Finding Artifacts
Official Documentation
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...
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...
Resolving Third Party Library Package Dependencies
Official Documentation
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...
Exporting Packages
Official Documentation
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...
Importing Packages
Official Documentation
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...
Module Projects
Official Documentation
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...
Semantic Versioning
Official Documentation
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...
Types of Utility Pages
Official Documentation
Types of Utility Pages Utility pages are content pages managed at the site level. Since the default system-level pages are not customizable, you can use site-level utility pages to provide a unique...
Fragment Specific Tags and Attributes Reference for Liferay 7.3 and Earlier Versions
Official Documentation
Fragment Specific Tags and Attributes Reference for Liferay 7.3 and Earlier Versions Along with standard HTML, CSS, and JavaScript, you can use Liferay-specific tags and attributes to define...
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...
Managing Object Entries Using GraphQL
Official Documentation
Managing Object Entries Using GraphQL You can use GraphQL to manage custom object entries in Liferay efficiently. This API framework simplifies data interaction and serves as an alternative to REST...
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