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Capability
Feature
Deployment Approach
Data Cleanup
Data Cleanup Available 7.3+ When you're done using an obsolete Liferay app or capability, you can remove its data. You can use the Control Panel or a configuration file to do data cleanup. Here's...
Published Date: May 9, 2024 6:52 PM
Database Upgrade Options
Database Upgrade Options When a release, update, or fix pack has database schema changes, it's helpful to know the options for applying the changes. Here you'll find the database upgrade options...
Published Date: May 9, 2024 6:52 PM
Database Upgrade Tool Reference
Database Upgrade Tool Reference As of Liferay 7.4 U82/GA82 and above, the `db_upgrade.sh` file has been renamed to `db_upgrade_client.sh`. Here's an overview of Liferay's upgrade tool. Start the...
Published Date: May 9, 2024 6:52 PM
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...
Published Date: May 9, 2024 6:52 PM
Default Setting Changes in 7.4
Default Setting 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 changes and decide...
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 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
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
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
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...
Published Date: May 9, 2024 6:52 PM
Post-Upgrade Considerations
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...
Published Date: May 9, 2024 6:52 PM
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...
Published Date: May 9, 2024 6:52 PM
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,...
Published Date: May 9, 2024 6:52 PM
Upgrade Stability and Performance
Upgrade Stability and Performance When you upgrade a DXP instance for a production release, the data upgrades must be done correctly and swiftly. Here are some ways to help assure success: ...
Published Date: May 9, 2024 6:52 PM
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...
Published Date: May 9, 2024 6:52 PM
Upgrade Basics
Upgrade Basics Liferay's tools and instructions facilitate upgrading DXP and Portal environments safely and quickly. Non-clustered environments that have small data sets, for example can be...
Published Date: May 9, 2024 6:52 PM
Using the Database Upgrade Tool
Using the Database Upgrade Tool The Liferay Database Upgrade Tool is a client program for upgrading Liferay DXP and Liferay Portal databases offline. **Always** [back...
Published Date: May 9, 2024 6:52 PM
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...
Published Date: May 9, 2024 6:52 PM
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...
Published Date: May 9, 2024 6:52 PM
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...
Published Date: May 9, 2024 6:52 PM
Liferay Development
Liferay Development Liferay's development platform makes developers faster and more efficient by providing a baseline set of features to build upon. Rather than start from scratch, you can start...
Published Date: May 9, 2024 6:52 PM
Building Applications
Building Applications For maximum compatibility with all of Liferay's deployment options, you can combine Liferay's Objects, Client Extensions, and other features and tools to build real-world...
Published Date: May 9, 2024 6:52 PM
Upgrading Custom Development
Upgrading Custom Development Upgrading on 7.4 This section is under construction. If you're upgrading a language key override to 7.4+, follow the language key override upgrade instructions first....
Published Date: May 9, 2024 6:52 PM
Building a Custom Ticketing System
Building a Custom Ticketing System Liferay makes it easy for you to build digital solutions. For example, you can create a custom ticketing application with the styling and features needed for your...
Published Date: May 9, 2024 6:52 PM
Defining a Custom Data Schema
Defining a Custom Data Schema The ticketing application requires custom data fields and selections. You use Liferay objects and picklists to define a custom data schema. Creating Custom Picklists...
Published Date: May 9, 2024 6:52 PM
Deploying a Custom Application
Deploying a Custom Application You can use a custom element client extension to render a JavaScript application as a widget on a Liferay site page. The application is served by Liferay and...
Published Date: May 9, 2024 6:52 PM
Implementing a Documentation Referral System
Implementing a Documentation Referral System The ticketing system can be further enhanced with a documentation referral system. The system searches automatically for relevant documentation based on...
Published Date: May 9, 2024 6:52 PM
Ticket Management with Cron Jobs
Ticket Management with Cron Jobs Use Cron jobs to automate managing tickets. For example, have a job to run at a regular schedule to delete any tickets that have a resolution type of duplicate or...
Published Date: May 9, 2024 6:52 PM
Applying a Custom Theme
Applying a Custom Theme You can use different front-end client extensions to customize the look and feel of your site. Specifically, theme CSS type client extension can be used as an alternative to...
Published Date: May 9, 2024 6:52 PM
Building a Time Off Requester
Building a Time Off Requester Liferay 7.4+ With Liferay Objects, you can build entire applications without writing code or deploying modules. Here, you'll create a Time Off Request application...
Published Date: May 9, 2024 6:52 PM
Asset Framework
Asset Framework The asset framework is behind many of Liferay's most powerful features. It provides tools for displaying and interacting with any type of content and data. For example, if you build...
Published Date: May 9, 2024 6:52 PM
Cache
Cache
Published Date: May 9, 2024 6:52 PM
Expando
Expando Accessing Custom Fields with Expando
Published Date: May 9, 2024 6:52 PM
Data Frameworks
Data Frameworks
Published Date: May 9, 2024 6:52 PM
Data Scopes
Data Scopes
Published Date: May 9, 2024 6:52 PM
Defining Entities
Defining Entities Entities are the heart and soul of a service. They represent the map between the model objects in Java and your database fields and tables. Service Builder automatically maps your...
Published Date: May 9, 2024 6:52 PM
Adding Model Hints
Adding Model Hints Once you've used Service Builder to define model entities, you may want to refine how users enter that data. Model hints specify entity data restrictions and other formatting....
Published Date: May 9, 2024 6:52 PM
Configuring Global Service Options
Configuring Global Service Options A service's global options apply to all its entities. Here are the options: Dependency Injector Package path Multiversion concurrency control Namespace...
Published Date: May 9, 2024 6:52 PM
Defining Entity Finder Methods
Defining Entity Finder Methods Finder methods retrieve entity objects from the database based on specified parameters. For each finder defined, Service Builder generates several methods to fetch,...
Published Date: May 9, 2024 6:52 PM
Implementing an Item Selector
Implementing an Item Selector Item selectors are pop-up dialogs for selecting assets, such as documents, videos, or users. By configuring the item selector's criteria and defining its usage, you...
Published Date: May 9, 2024 6:52 PM
Service Builder
Service Builder An application without reliable business logic or persistence isn't much of an application at all. Unfortunately, writing your own persistence code often takes a great deal of time....
Published Date: May 9, 2024 6:52 PM
Business Logic with Service Builder
Business Logic with Service Builder Once you've generated model, persistence, and service code with Service Builder, you can begin adding business logic. Entities generated by Service Builder...
Published Date: May 9, 2024 6:52 PM
Defining Entity Columns
Defining Entity Columns An entity's columns represent its attributes. These attributes map table fields to Java object fields. Here you'll examine the sample project from Understanding and...
Published Date: May 9, 2024 6:52 PM
Defining Entity Relationships
Defining Entity Relationships Relationships between database entities or Java objects are necessary for most applications. Take Liferay's Message Boards application as an example. Each Message...
Published Date: May 9, 2024 6:52 PM
Modifying Database Fields in Development
Modifying Database Fields in Development As you develop an application, you might need to add fields to your database. This is a normal process of iterative development: you get an idea for a new...
Published Date: May 9, 2024 6:52 PM
Service Builder Basics
Service Builder Basics Using Service Builder helps you learn it. You'll use it to learn the basics: Generating Model, Persistence, and Service Code: Define a basic model, generate code from it,...
Published Date: May 9, 2024 6:52 PM
Upgrade Processes
Upgrade Processes
Published Date: May 9, 2024 6:52 PM
Developing a Java Web Application
Developing a Java Web Application
Published Date: May 9, 2024 6:53 PM
Reference
Reference
Published Date: May 9, 2024 6:53 PM
Sorting Entity Instances
Sorting Entity Instances Often, you want to retrieve multiple instances of a given entity and list them in a particular order. The service.xml file lets you specify the default order of your...
Published Date: May 9, 2024 6:52 PM
Invoking a Service Locally
Invoking a Service Locally Service Builder services that are deployed to DXP/Portal can be invoked from other classes in the same JVM. These services are local to the classes. Service Builder...
Published Date: May 9, 2024 6:52 PM
Understanding and Extending Generated Classes
Understanding and Extending Generated Classes Service Builder generates both tables for your entity and model, persistence, and service classes for it. Here you'll examine generated classes for an...
Published Date: May 9, 2024 6:52 PM
Upgrading Your Database Tables
Upgrading Your Database Tables Liferay DXP 7.4 U10+ or Liferay Portal 7.4 GA14+ An upgrade of your application may require making changes to your database tables. Liferay's Upgrade framework makes...
Published Date: May 9, 2024 6:53 PM
Portlet Descriptor to OSGi Service Property Map
Portlet Descriptor to OSGi Service Property Map Here's a map of portlet XML descriptor values to OSGi service properties for publishing OSGi Portlets. The properties centralize and simplify portlet...
Published Date: May 9, 2024 6:53 PM
Portlet IDs
Portlet IDs Below is a listing of the portlet IDs for the default portlets in Liferay DXP. You can use these IDs to embed portlets in your theme's sitemap. Collaboration PortletID...
Published Date: May 9, 2024 6:53 PM
Liferay Faces Portal
Liferay Faces Portal Liferay Faces Portal is distributed in a .jar file. You can add Liferay Faces Portal as a dependency for your portlet projects to use its Liferay-specific utilities and UI...
Published Date: May 9, 2024 6:53 PM
MVC Action Command
MVC Action Command MVC Action Commands handle actions as separate classes. With Action Commands, you can organize action logic in MVCPortlets that have many actions. Action URLs in the portlet's...
Published Date: May 9, 2024 6:53 PM
MVC Render Command
MVC Render Command MVC Render Commands are classes that handle which page to render. They are invoked by MVCPortlet render URLs and requests. If your render logic is simple you can implement all of...
Published Date: May 9, 2024 6:53 PM
Portlets
Portlets Liferay DXP started off as a portal server for Java-based web applications called portlets (see JSR 168, JSR-286, and JSR-362). Portlets process requests and generate responses like any...
Published Date: May 9, 2024 6:53 PM

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