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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, 2024 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: 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
UI Architecture
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
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
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
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
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 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
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
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
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
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
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
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
Liferay DXP 2024.Q4 Breaking Changes
Liferay DXP 2024.Q4 Breaking Changes Breaking changes break or significantly alter existing functionality or code structure. Here are all of the breaking changes for Liferay DXP 2024.Q4. As the...
Published Date: Dec 13, 2024 3:47 PM
Maintenance Mode and Deprecations in Liferay DXP 2024.Q4
Maintenance Mode and Deprecations in Liferay DXP 2024.Q4 Features moved to Maintenance Mode or marked as Deprecated in Liferay DXP 2024.Q4 appear here. For details about these statuses and their...
Published Date: Dec 11, 2024 4:21 PM
2025 Deprecations and Breaking Changes
2025 Deprecations and Breaking Changes Liferay quarterly releases introduce new features and enhancements while phasing out older or less-used functionality. Some features move to Maintenance Mode,...
Published Date: Apr 29, 2025 4:46 PM
Liferay DXP 2025.Q1 Breaking Changes
Liferay DXP 2025.Q1 Breaking Changes Breaking changes break or significantly alter existing functionality or code structure. Here are all of the breaking changes for Liferay DXP 2025.Q1. As the...
Published Date: Feb 25, 2025 12:40 PM
2025.Q1 Default Setting and Feature Flag Changes
2025.Q1 Default Setting and Feature Flag Changes Most new versions of Liferay DXP include changes to the default settings. If you rely on the defaults from your old version, you should review the...
Published Date: Mar 6, 2025 4:05 PM
2024.Q3 Default Setting and Feature Flag Changes
2024.Q3 Default Setting and Feature Flag Changes Most new versions of Liferay DXP include changes to the default settings. If you rely on the defaults from your old version, you should review the...
Published Date: Mar 6, 2025 4:05 PM
Liferay DXP 2024.Q2 Breaking Changes
Liferay DXP 2024.Q2 Breaking Changes Breaking changes break or significantly alter existing functionality or code structure. Here are all of the breaking changes for Liferay DXP 2024.Q2. As the...
Published Date: Jan 18, 2025 2:47 AM
Liferay DXP 2024.Q3 Breaking Changes
Liferay DXP 2024.Q3 Breaking Changes Breaking changes break or significantly alter existing functionality or code structure. Here are all of the breaking changes for Liferay DXP 2024.Q3. As the...
Published Date: Jan 18, 2025 2:47 AM
2024.Q1 Default Setting and Feature Flag Changes
2024.Q1 Default Setting and Feature Flag Changes Most new versions of Liferay DXP include changes to the default settings. If you rely on the defaults from your old version, you should review the...
Published Date: Mar 6, 2025 4:05 PM
Maintenance Mode and Deprecations in Liferay DXP 2024.Q2
Maintenance Mode and Deprecations in Liferay DXP 2024.Q2 Features moved to Maintenance Mode or marked as Deprecated in Liferay DXP 2024.Q2 appear here. For details about these statuses and their...
Published Date: Dec 11, 2024 4:21 PM
2024.Q2 Default Setting and Feature Flag Changes
2024.Q2 Default Setting and Feature Flag Changes Most new versions of Liferay DXP include changes to the default settings. If you rely on the defaults from your old version, you should review the...
Published Date: Mar 6, 2025 4:05 PM
Maintenance Mode and Deprecations in Liferay DXP 2024.Q3
Maintenance Mode and Deprecations in Liferay DXP 2024.Q3 Features moved to Maintenance Mode or marked as Deprecated in Liferay DXP 2024.Q3 appear here. For details about these statuses and their...
Published Date: Dec 11, 2024 4:21 PM
2024.Q4 Default Setting and Feature Flag Changes
2024.Q4 Default Setting and Feature Flag Changes Most new versions of Liferay DXP include changes to the default settings. If you rely on the defaults from your old version, you should review the...
Published Date: Mar 6, 2025 4:05 PM
Maintenance Mode and Deprecations in 7.4
Maintenance Mode and Deprecations in 7.4 With each new Liferay DXP and Liferay Portal release, a feature may not warrant continued enhancements or may become obsolete. Stopping enhancements for a...
Published Date: May 9, 2024 6:52 PM
File Store Updates
File Store Updates File store options and configuration values changed in Liferay DXP 7.0. If you're on 7.0 or earlier and are affected by these changes, you must update your file store before...
Published Date: May 9, 2024 6:52 PM
Maintenance Mode and Deprecations in 7.2
Maintenance Mode and Deprecations in 7.2 With each new DXP release, a feature may not warrant continued enhancements or may become obsolete. Stopping enhancements for a feature puts it in...
Published Date: May 9, 2024 6:52 PM
Maintenance Mode and Deprecations in Liferay DXP 2025.Q2
Maintenance Mode and Deprecations in Liferay DXP 2025.Q2 Features moved to Maintenance Mode or marked as Deprecated in Liferay DXP 2025.Q2 appear here. For details about these statuses and their...
Published Date: May 7, 2025 4:42 PM
Maintenance Mode and Deprecations in 7.3
Maintenance Mode and Deprecations in 7.3 With each new DXP release, a feature may not warrant continued enhancements or may become obsolete. Stopping enhancements for a feature puts it in...
Published Date: May 9, 2024 6:52 PM
Monitoring Upgrades with MBeans
Monitoring Upgrades with MBeans Liferay DXP 7.4 U76 / Liferay Portal 7.4 GA76 When upgrade upon startup is enabled, the upgrade process can be monitored with MBeans through a JVM management tool...
Published Date: May 9, 2024 6:52 PM
Troubleshooting Upgrades
Troubleshooting Upgrades Skipping an upgrade step or creating custom references to the Liferay database, can cause upgrade issues. The following questions and answers address some common...
Published Date: May 9, 2024 6:52 PM
Renamed Language Keys
Renamed Language Keys In Liferay DXP/Portal 7.4, module language keys were centralized to a module called portal-language-lang. Source location: ...
Published Date: May 9, 2024 6:52 PM
Upgrade Report
Upgrade Report Available 7.4+ When you perform upgrades, it is important to know the changes made and any issues that occurred. The upgrade status returns combined results for core upgrades,...
Published Date: May 9, 2024 6:52 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
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
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 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
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
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
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
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
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
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
Auditing Object Events
Auditing Object Events Liferay 7.4 U72+/GA72+ You can use Liferay's audit framework to track events for custom object definitions and their entries. To track entry events, you must enable entry...
Published Date: May 9, 2024 6:54 PM
Exporting and Importing Object Definitions
Exporting and Importing Object Definitions Liferay 7.4 U68+/GA68+ You can export and import object definitions as .json files. These files include the definition's complete schema (e.g.,...
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
Adding Fields to Objects
Adding Fields to Objects Liferay DXP 2023.Q4+/Portal GA102+ Fields are data definitions that represent database columns and store different types of values. By default, all objects include these...
Published Date: May 9, 2024 6:54 PM
Formula Fields
Formula Fields Liferay DXP 2023.Q4+/Portal GA102+ Formula fields store read-only values calculated using numeric fields in the object definition. Example use cases include calculating an...
Published Date: May 9, 2024 6:54 PM
Aggregation Fields
Aggregation Fields Liferay 7.4 U47+/GA47+ Aggregation fields perform basic calculations on the entries from a relationship table and display the resulting values. Available aggregation functions...
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
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

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