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Day 3 Exercises for Building Enterprise Websites with Liferay
Introduction page for day 3 Day 3 Exercises for Building Enterprise Websites with Liferay Exercise 19a: Creating an Object Definition Exercise 19b: Building the Form Exercise 19c: Creating a...
Liferay Style Conventions
Liferay Style Conventions Conventions are neither correct or incorrect; they are decisions that vary greatly in the industry. After much comparison and use, Liferay's documentation uses the...
Liferay Documentation Format
Liferay Documentation Format The format, or how a style of documentation is organized, is important to maintaining consistency of experience. As readers make more use of the documentation, the...
Jakarta 2025 FAQ
Jakarta 2025 FAQ Liferay DXP is evolving! To continue providing you with the most advanced and secure platform, Liferay is transitioning its underlying enterprise platform from Java EE 8 to Jakarta...
Liferay Phraseology
Liferay Phraseology Liferay's style phrases prose a certain way. Note that these are also conventions and neither correct nor incorrect; they are the way we have chosen to communicate based on our...
Liferay Style Guide
Liferay Style Guide The Liferay Style Guide sits on the shoulders of giants---specifically, the giants of The Chicago Manual of Style and Strunk and White's The Elements of Style. Where this guide...
Core
Core :::: 2 :gutter: 3 3 3 3 ::: Core Modules Liferay Shielded Container API Service Tracker Collections ::: ::: Petra Concurrent Executor Function IO Lang Memory NIO Process Reflect SQL DSL...
Reference
Reference Note: These pages contain the latest Liferay reference documentation. You can download reference documentation for older releases from Github here. :::: 2 :gutter: 3 3 3 3 ::: DXP...
Liferay University
Liferay University This page serves as an archive and index of videos that were previously hosted on Liferay University. As of February 28, 2023 Liferay University is no longer operational....
Portlet API
Portlet API Portlet API
Utility Classes
Utility Classes Util-Bridges Util-Java Util-slf4j Util-Taglib
Legacy Documentation
Legacy Documentation Using Liferay DXP 7.2 Developing Liferay DXP 7.2 Using Liferay DXP 7.1 Developing Liferay DXP 7.1 Using Liferay DXP 7.0 Developing Liferay DXP 7.0 Using Liferay...
Properties Documentation
Properties Documentation Portal Properties System Properties Liferay Plugin Package Properties 7.4 Liferay Plugin Package Properties 7.3 Liferay Plugin Package Properties 7.2 Liferay Plugin...
Javadocs
Javadocs Portal-Impl Portal-Kernel Portal-Test Core Apps
Liferay High-Level Style
Liferay High-Level Style There are five types of documentation: Introduction: Placed hierarchically at the top of a section, the introduction is a high level explainer that summarizes how the...
Definitions
Definitions Definitions
Training Material
Training Material These materials supplement some recorded and in-person trainings by providing you with opportunities to practice key skills, test your understanding, and gain confidence in...
Building Enterprise Websites with Liferay Exercises
Building Enterprise Websites with Liferay Exercises These exercises supplement the Building Enterprise Websites with Liferay video training and provide an opportunity to solidify your learning....
Day 1 Exercises for Building Enterprise Websites with Liferay
Introduction page for day 1 Day 1 Exercises for Building Enterprise Websites with Liferay Exercise 1: Exploring Clarity's Public Enterprise Website Exercise 2: Verifying and Launching Liferay...
7.3 Breaking Changes
Official Documentation
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...
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...
7.3 Deprecations and Breaking Changes
7.3 Deprecations and Breaking Changes
7.4 Deprecations and Breaking Changes
7.4 Deprecations and Breaking Changes
Database Pruning for Faster Upgrades
Database Pruning for Faster Upgrades The more data you have the longer your data upgrade takes. Unneeded site data is a common occurrence. Pruning the database of unneeded data improves upgrade...
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...
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...
Preparing for an Upgrade
Official Documentation
Preparing for an Upgrade Preparation and planning may be of little consequence for small, casual installations but is mandatory for large enterprise-level installations. Create a Back Up Always...
Default Setting Changes in 7.3
Default Setting Changes in 7.3 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 changes and decide...
Migrating the Database
Official Documentation
Migrating the Database For support, maintenance, or performance reasons, you may decide to migrate from the database you use to one of the other databases Liferay supports. Though the exact steps...
Data Cleanup
Data Cleanup Before database upgrades, Liferay executes data cleanup processes to repair databases with obsolete data. This lightens the load of the upgrade tool, improving performance and reducing...
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...
Example: Removing Intermediate Journal Article Versions
Example: Removing Intermediate Journal Article Versions These instructions and code samples demonstrate removing intermediate Journal Article versions. In the script console, you can remove...
Updating the File Store
Updating the File Store 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...
Upgrading Clustered and Sharded Environments
Upgrading Clustered and Sharded Environments If you're upgrading a clustered installation, you must follow an upgrade approach that fits your cluster requirements. See Maintaining Clustered...
7.4 Breaking Changes
Official Documentation
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...
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: ...
Post-Upgrade Considerations
Official Documentation
Post-Upgrade Considerations After upgrading the database, you should configure Liferay for production again and check up on feature changes that might affect your Liferay instance. Re-enable...
Database Tuning for Upgrades
Database Tuning for Upgrades Performing an upgrade impacts the database differently from daily running in production. Because of this, you should tune your database for the upgrade process before...
Common Upgrade Issues
Common Upgrade Issues Skipping an upgrade step or creating custom references to the Liferay database, can cause upgrade issues. The following questions and answers address some common situations. ...
Troubleshooting Upgrades
Official Documentation
Troubleshooting Upgrades Liferay has many out-of-the-box tools and features to identify and solve issues that may arise when performing an upgrade. To troubleshoot, you can upgrade modules...
Upgrading via Auto Upgrade
Upgrading via Auto Upgrade You can upgrade your database automatically by enabling auto upgrade via the portal property before starting up your instance. Always back up your database and existing...
Default Setting and Feature Flag Changes in 7.4
Default Setting and Feature Flag Changes in 7.4 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...
Upgrade Log Context
Upgrade Log Context Liferay DXP 7.4 U72 / Liferay Portal 7.4 GA72 Enable the upgrade log context to display identifiers for upgrade related processes in your console logs. The possible identifiers...
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,...
Migrating Configurations and Properties
Migrating Configurations and Properties Your current DXP installation's OSGi configurations (7.0+) and properties (such as portal properties and system properties) set up your DXP instance to fit...
Upgrading a Sharded Environment
Upgrading a Sharded Environment Since Liferay DXP 7.0, Liferay removed its own physical partitioning implementation (also known as sharding) in favor of the capabilities provided natively by...
Upgrading Modules Using Gogo Shell
Upgrading Modules Using Gogo Shell To troubleshoot upgrade issues with particular modules, it may be necessary to test and perform upgrades on a per-module basis, instead of en-masse. Liferay has...
Updating Customizations
Official Documentation
Updating Customizations Plugins (e.g., themes, apps, and customizations) you've developed must be adapted to the new Liferay version. This can be as simple as updating dependencies or involve...
Upgrading the Database
Official Documentation
Upgrading the Database Liferay's tools and instructions facilitate upgrading DXP and Portal environments safely and quickly. Non-clustered environments that have small data sets, can be upgraded...
Creating Pages
Official Documentation
Creating Pages Pages form the foundation of your site's content and user experience. With Liferay, you can create dynamic and engaging web experiences using flexible, low-code tools to define...
Database Upgrade Tool Reference
Database Upgrade Tool Reference Before Liferay 7.4 U82/GA82, the db_upgrade_client.sh file was called db_upgrade.sh. Here's an overview of Liferay's upgrade tool. Start the upgrade tool using...
Upgrading via Docker
Upgrading via Docker Running a Liferay Docker image with auto-upgrade enabled uses the Database Upgrade Tool to upgrade your database transparently on Liferay startup. After the upgrade completes,...
Maintenance and Troubleshooting in Docker
Official Documentation
Maintenance and Troubleshooting in Docker The Liferay Docker container has tools for maintenance and troubleshooting out-of-the-box. You can set various environment variables to modify settings...
Building Liferay Docker Images
Official Documentation
Building Liferay Docker Images Liferay is open-source and fully customizable. You can create your own Liferay Docker images using Dockerfiles to suit the needs of your installation. For example,...
Using Liferay Docker Images
Official Documentation
Using Liferay Docker Images Docker Hub hosts Liferay DXP and Liferay Portal Docker images, bundled with Tomcat on Linux. The Liferay Docker Hub pages provide image details and tags for the...
Docker Packages
Official Documentation
Docker Packages These are the packages Liferay installs in the Ubuntu OS to support a full Liferay DXP environment. This list includes neither the JDK nor the dependencies the packages require. ...
Patching DXP in Docker
Official Documentation
Patching DXP in Docker Liferay patches fix DXP issues and the Patching Tool applies the patches. On Docker Hub, Liferay provides images pre-populated with each new Fix Pack, Security Fix Pack, and...
Configuring Containers
Official Documentation
Configuring Containers Everything that is configurable in a Liferay installation is configurable in a Liferay Docker container. Here are the most common things to configure: JVM Options Portal...
Container Lifecycle and API
Official Documentation
Container Lifecycle and API At a high level, the container starts Tomcat with Liferay deployed on it. Additionally, however, the container entry point provides an API for executing these use cases:...
Installing Apps and Other Artifacts to Containers
Official Documentation
Installing Apps and Other Artifacts to Containers Applications and other artifacts (such as DXP activation keys) are installed to DXP Docker containers via the container's /mnt/liferay/deploy...