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Resource Type
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Deployment Approach
Capability
Feature
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...
Tuning Messaging Performance
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...
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...
Servlets
Servlets
Data Frameworks
Data Frameworks
Advanced Queries
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...
Enabling Assets
Enabling Assets Many of Liferay's applications (e.g. Blogs, Documents and Media, Message Boards, etc.) are asset-enabled out of the box. You can publish assets with the Asset Publisher widget or...
Data Scopes
Data Scopes
Expando
Expando Accessing Custom Fields with Expando
Accessing Custom Fields With Expandos
Accessing Custom Fields With Expandos When you need additional fields in your application, you can always add them in your service model definition and re-run Service Builder. This adds new columns...
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...
Cache
Cache
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...
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....
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...
Using Domain-Specific Language Queries
Using Domain-Specific Language Queries Liferay 7.4+ DSL Query is an acronym for Domain-Specific Language Query. The foundation is based upon using a domain-specific language for the...
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...
Configuring service.properties
Configuring service.properties Service Builder generates a service.properties file in your *-service module's src/main/resources folder. Liferay uses this file's properties to alter your service's...
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...
Connecting Service Builder to an External Database
Connecting Service Builder to an External Database Service builder creates the necessary tables for the service in the lportal database with all other data used by Liferay. If you want to store the...