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Feature
Logs
Official Documentation
Logs The OSGi Log Service Extender enables bundles to provide OSGi logging configuration using embedded properties files META-INF/osgi-logging.properties or META-INF/osgi-logging-ext.properties....
Listening for Messages
Official Documentation
Listening for Messages You can listen for messages sent to any registered Message Bus destination, whether it's built-in to DXP/Portal, defined by third-parties, or created by you. Messages sent to...
Listening for Registration Events
Official Documentation
Listening for Registration Events Liferay DXP 2023.Q3/Portal GA92 and Below The messaging API supports listening for destination and message listener registration events. Here are some reasons to...
Using Asynchronous Messaging
Official Documentation
Using Asynchronous Messaging Message Bus's asynchronous option provides fire and forget behavior; send a message and continue processing without waiting for a response. An asynchronous message is...
Message Bus
Official Documentation
Message Bus The Message Bus provides a loosely coupled way to exchange messages. A class sending a message invokes the Message Bus to send the message to a destination, while other classes...
Tuning Messaging Performance
Official Documentation
Tuning Messaging Performance Messaging performance is tuned at the destinations. Performance depends on the destination type, the amount of processing the message listeners require, and the thread...
Using Default Synchronous Messaging in Previous Versions
Official Documentation
Using Default Synchronous Messaging in Previous Versions Synchronous messaging was removed and is no longer supported for Liferay DXP 7.4 U49/Liferay Portal 7.4 GA49 and above. In default...
Portlet IDs
Official Documentation
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...
Servlets
Official Documentation
Servlets
Implementing an Item Selector
Official Documentation
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...
Service Builder
Official Documentation
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....
Advanced Queries
Official Documentation
Advanced Queries Service Builder doesn't limit you to elements in service.xml. If simple finders aren't sufficient for getting data out of your application, there are three other ways to make the...
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...
DDM Form Annotations
Official Documentation
DDM Form Annotations The auto-generated configuration interface UI may be too simplistic for some configurations. You can use the Dynamic Data Mapping (DDM) form annotations to customize your...
Configuration Model Listener Reference
Official Documentation
Configuration Model Listener Reference Use model listeners in your own configurations to listen for events and execute code in response. Creating a model listener requires only three steps: ...
Field Options Provider
Official Documentation
Field Options Provider You can populate a drop-down list manually in the @Meta.AD annotation of the configuration interface. But you can also populate the option labels and values automatically...
Hiding the Configuration UI
Official Documentation
Hiding the Configuration UI Liferay generates a configuration UI automatically after a configuration interface deploys. But you may have certain use cases where you want to hide the UI. For...
Scoping Configurations
Official Documentation
Scoping Configurations In Liferay DXP, you can set an application's configuration to different levels of scope: System, Instance, Site, or Portlet. For example, if you create an application to have...
Job Scheduler Framework
Official Documentation
Job Scheduler Framework
Dependency Injection
Official Documentation
Dependency Injection