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Capability
Feature
Deployment Approach
Theme CSS YAML Configuration Reference
Theme CSS YAML Configuration Reference You can define a theme CSS client extension with a client-extension.yaml file. Usage Details This client-extension.yaml file defines a theme CSS client...
Published Date: May 9, 24, 6:54 PM
Using a Theme Sprite Map Client Extension
Using a Theme Sprite Map Client Extension Liferay 7.4 2023.Q4+/GA100+ With a theme sprite map client extension, you can override the default Clay sprite map used for icons on a page. Start with...
Published Date: May 9, 24, 6:54 PM
Theme Sprite Map YAML Configuration Reference
Theme Sprite Map YAML Configuration Reference You can define a theme sprite map client extension with a client-extension.yaml file. Usage Details This client-extension.yaml defines a theme sprite...
Published Date: May 9, 24, 6:54 PM
Data Sets
Data Sets Liferay DXP 2024.Q1+/Portal 7.4 GA112+ [Beta Feature](../system-administration/configuring-liferay/feature-flags.md#beta-feature-flags) Data sets are like virtual containers that help...
Published Date: May 9, 24, 6:54 PM
Data Set Views
Data Set Views Liferay DXP 2024.Q1+/Portal 7.4 GA112+ [Beta Feature](../../system-administration/configuring-liferay/feature-flags.md#beta-feature-flags) With the data set manager, you can create...
Published Date: May 9, 24, 6:54 PM
Using a Theme Favicon Client Extension
Using a Theme Favicon Client Extension Liferay 7.4+ With a theme favicon client extension, you can override the theme's favicon on the selected page. Start with the sample workspace to build and...
Published Date: May 9, 24, 6:54 PM
Theme Favicon YAML Configuration Reference
Theme Favicon YAML Configuration Reference You can define a theme favicon client extension with a client-extension.yaml file. Usage Details This client-extension.yaml file defines a theme favicon...
Published Date: May 9, 24, 6:54 PM
Using an Editor Config Contributor Client Extension
Using an Editor Config Contributor Client Extension Liferay DXP 2024.Q1+/Portal 7.4 GA112+ The translation status feature is currently behind a release feature flag (LPS-186870). Read Release...
Published Date: May 9, 24, 6:54 PM
Editor Config Contributor YAML Configuration Reference
Editor Config Contributor YAML Configuration Reference Liferay DXP 2024.Q1+/Portal 7.4 GA112+ This feature is currently behind a release feature flag (LPS-186870). Read Release Feature Flags for...
Published Date: May 9, 24, 6:54 PM
Creating Data Sets
Creating Data Sets Liferay DXP 2024.Q1+/Portal 7.4 GA112+ [Beta Feature](../../system-administration/configuring-liferay/feature-flags.md#beta-feature-flags) Currently, this feature is behind a...
Published Date: May 9, 24, 6:54 PM
Data Set View Actions
Data Set View Actions Liferay DXP 2024.Q1+/Portal 7.4 GA112+ [Beta Feature](../../../system-administration/configuring-liferay/feature-flags.md#beta-feature-flags) While managing data set views,...
Published Date: May 9, 24, 6:54 PM
Data Set View Filters
Data Set View Filters Liferay DXP 2024.Q1 U112 [Beta Feature](../../../system-administration/configuring-liferay/feature-flags.md#beta-feature-flags) While managing data set views, you can define...
Published Date: May 9, 24, 6:54 PM
Using Data Set View Actions
Using Data Set View Actions Liferay DXP 2024.Q1 U112 [Beta Feature](../../../system-administration/configuring-liferay/feature-flags.md#beta-feature-flags) Here are some examples for how to use...
Published Date: May 9, 24, 6:54 PM
Importing/Exporting Data
Importing/Exporting Data Liferay Self-Hosted Liferay SaaS Liferay PaaS Liferay 7.4 If you want to import or export data from Liferay, you use batch client extensions. Use and reuse your data...
Published Date: May 9, 24, 6:54 PM
Data Set View Visualization Modes
Data Set View Visualization Modes Liferay DXP 2024.Q1+/Portal 7.4 GA112+ [Beta Feature](../../../system-administration/configuring-liferay/feature-flags.md#beta-feature-flags) To customize the...
Published Date: May 9, 24, 6:54 PM
Batch YAML Configuration Reference
Batch YAML Configuration Reference Use a client-extension.yaml file to define a batch client extension. Usage Details This client-extension.yaml file defines a client extension of type batch: ...
Published Date: May 9, 24, 6:54 PM
Using a Site Initializer Client Extension
Using a Site Initializer Client Extension Liferay 7.4 2023.Q4+/GA100+ Site Initializer client extensions can quickly create a site, complete with configurations and content. Start with the sample...
Published Date: Oct 16, 24, 4:13 PM
Site Initializer YAML Configuration Reference
Site Initializer YAML Configuration Reference Liferay Self-Hosted Liferay SaaS Liferay PaaS Liferay 7.4 Use a client-extension.yaml file to define a Site Initializer client extension. Usage...
Published Date: Oct 16, 24, 4:13 PM
Integrating External Applications
Integrating External Applications Custom Element and IFrame client extensions register applications with Liferay and render them as widgets on site pages. When you create one of these frontend...
Published Date: May 9, 24, 6:54 PM
Bundle Classloading Flow
Bundle Classloading Flow The OSGi container searches several places for imported classes. It's important to know where it looks and in what order. Liferay DXP's classloading flow for OSGi bundles...
Published Date: May 9, 24, 6:55 PM
Liferay Classloader Hierarchy
Liferay Classloader Hierarchy All Liferay DXP/Portal applications live in an OSGi container. DXP/Portal is a web application deployed on your application server. Its Module Framework bundles...
Published Date: May 9, 24, 6:55 PM
Creating a Basic Custom Element
Creating a Basic Custom Element Liferay 7.4+ Custom element client extensions use Liferay's frontend infrastructure to register external, remote applications with the Liferay platform and render...
Published Date: May 9, 24, 6:54 PM
Using an IFrame Client Extension
Using an IFrame Client Extension Liferay 7.4+ IFrame client extensions use Liferay's frontend infrastructure to register external applications as HTML elements. They're added to Liferay pages as...
Published Date: May 9, 24, 6:54 PM
Using Routes with Custom Elements
Using Routes with Custom Elements Liferay 7.4+ Custom element client extensions use Liferay's frontend infrastructure to register external applications with the Liferay platform and render them as...
Published Date: May 9, 24, 6:54 PM
Integrating Microservices
Integrating Microservices Liferay Self-Hosted Liferay SaaS Liferay PaaS Liferay 7.4 You can define microservice client extensions to run your own code in response to events in your Liferay...
Published Date: May 9, 24, 6:54 PM
Object Action YAML Configuration Reference
Object Action YAML Configuration Reference You can define an object action client extension with a client-extension.yaml file. Usage Details This client-extension.yaml defines an object action and...
Published Date: May 9, 24, 6:54 PM
IFrame YAML Configuration Reference
IFrame YAML Configuration Reference You can define an IFrame client extension with a client-extension.yaml file. Data Usage This client-extension.yaml file defines an IFrame client extension: ...
Published Date: May 9, 24, 6:54 PM
Custom Element YAML Configuration Reference
Custom Element YAML Configuration Reference You can define a custom element client extension with a client-extension.yaml file. Usage Details This client-extension.yaml file defines a custom...
Published Date: May 9, 24, 6:54 PM
Notification Type YAML Configuration Reference
Notification Type YAML Configuration Reference You can define a notification type client extension with a client-extension.yaml file. Usage Details This client-extension.yaml file defines a...
Published Date: May 9, 24, 6:54 PM
Object Validation Rule YAML Configuration Reference
Object Validation Rule YAML Configuration Reference To define an Object Validation Rule client extension, add the objectValidationRule type to your client-extension.yaml file. Usage Details This...
Published Date: May 9, 24, 6:54 PM
Using a Microservice Client Extension
Using a Microservice Client Extension A microservice client extension is a standalone server process that relies on OAuth 2 for communication with Liferay. The microservice is a resource server and...
Published Date: May 9, 24, 6:54 PM
Workflow Action YAML Configuration Reference
Workflow Action YAML Configuration Reference You can define a workflow action client extension with a client-extension.yaml file. Usage Details This client-extension.yaml file defines a workflow...
Published Date: May 9, 24, 6:54 PM
Liferay Internals
Liferay Internals Liferay is a complex open-source platform built on several key technologies and architectural principles. Liferay is written mostly in Java and built on the OSGi framework, which...
Published Date: Jul 18, 24, 8:39 PM
Architecture
Architecture The Liferay DXP/Portal architecture has three parts: Core: Bootstraps DXP and its frameworks. The Core provides a runtime environment for managing services, UI components, and...
Published Date: May 9, 24, 6:55 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, 24, 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: May 9, 24, 6:55 PM
OSGi and Modularity
OSGi and Modularity Modularity makes writing software, especially as a team, fun! Here are some benefits to modular development on Liferay: Liferay's runtime framework is lightweight, fast, and...
Published Date: May 9, 24, 6:55 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: May 9, 24, 6:55 PM
UI Architecture
UI Architecture
Published Date: May 9, 24, 6:55 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: May 9, 24, 6:55 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: May 9, 24, 6:55 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: 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
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
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

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