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Cache
Official Documentation
Cache
Expando
Official Documentation
Expando Accessing Custom Fields with Expando
Data Frameworks
Official Documentation
Data Frameworks
Data Scopes
Official Documentation
Data Scopes
Defining Entities
Official Documentation
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...
Adding Model Hints
Official Documentation
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....
Configuring Global Service Options
Official Documentation
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...
Defining Entity Finder Methods
Official Documentation
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,...
Accessing Custom Fields With Expandos
Official Documentation
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...
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....
Business Logic with Service Builder
Official Documentation
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...
Defining Entity Columns
Official Documentation
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...
Defining Entity Relationships
Official Documentation
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...
Modifying Database Fields in Development
Official Documentation
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...
Service Builder Basics
Official Documentation
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,...
Upgrading Data Schemas
Official Documentation
Upgrading Data Schemas When you upgrade Liferay, you might run into incompatibility issues with your custom modules' data schemas. There are three ways you can resolve these issues: You can run...
Developing a Web Application
Official Documentation
Developing a Web Application
Sorting Entity Instances
Official Documentation
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...
Generating Model, Persistence, and Service Code
Official Documentation
Generating Model, Persistence, and Service Code Service Builder makes it easy to define models and generate model, persistence, and service code for them. You'll experience this by defining a model...
Invoking a Service Locally
Official Documentation
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...
Understanding and Extending Generated Classes
Official Documentation
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...
Backing Up Elasticsearch
Official Documentation
Backing Up Elasticsearch Elasticsearch replicas protect against a node going down, but they won't help you with a catastrophic failure. Only good backup practices can help you then. Backing Up...
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...
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...
Securing Elasticsearch
Official Documentation
Securing Elasticsearch The very first thing you must do to secure Elasticsearch is enable X-Pack Security. After that you can begin configuring authentication and encrypted communication. ...
Upgrading to Elasticsearch 7
Official Documentation
Upgrading to Elasticsearch 7 7.1 and 7.2 Liferay's connection to Elasticsearch 7.17.x servers is deprecated due to the End of Life for Elasticsearch 7.17. Connecting to a deprecated Elasticsearch...
Using the Sidecar or Embedded Elasticsearch
Official Documentation
Using the Sidecar or Embedded Elasticsearch Sidecar and embedded Elasticsearch are not suitable for production. When using an app server different other than Tomcat, set up a standalone...
Creating Forms Using Form Fragments
Official Documentation
Creating Forms Using Form Fragments Use form fragments to create and manage forms on content pages or page templates. With form fragments, you can map fields to objects, organize layouts, and...
Translating Fields in Form Containers
Official Documentation
Translating Fields in Form Containers Liferay DXP 2025.Q1+/Portal GA132+ Localize text inputs in form containers directly in the Page Editor to provide multilingual support for fields listed in...
Document Types and Metadata Sets API Basics
Official Documentation
Document Types and Metadata Sets API Basics Liferay DXP 2025.Q1+/Portal GA132+ Liferay's headless delivery application provides REST services for Documents and Media that add document types and...
Build Retention Policy
Build Retention Policy The Liferay Cloud console displays your builds on the Builds page, so you can deploy them to your services whenever needed. However, only the most recent 1,100 builds remain...
Product Configurations
Official Documentation
Product Configurations Liferay DXP 2025.Q1+/Portal GA132+ Product Configurations are templates for managing product configuration and ability in one place. They help you make bulk changes to...
Multishipping
Official Documentation
Multishipping Liferay DXP 2025.Q1+/Portal GA132+ [Beta Feature](../../security-and-administration/administration/configuring-liferay/feature-flags.md#beta-feature-flags) With multishipping, your...
Language Client Extensions
Official Documentation
Language Client Extensions Liferay DXP 2025.Q1+/Portal GA132+ A language client extension adds new language keys or overrides existing keys and their translations. For example, you can translate...
Accounts API Basics
Official Documentation
Accounts API Basics Liferay DXP/Portal 7.4+ You can manage accounts from the Applications menu or use Liferay's REST APIs. Call these services to create and manage accounts. Adding an Account ...
Integrating Service Builder Applications with Objects
Official Documentation
Integrating Service Builder Applications with Objects You can integrate existing Service Builder applications with the Objects framework. Once integrated, your custom entities become unmodifiable...
Account Groups API Basics
Official Documentation
Account Groups API Basics Liferay DXP/Portal 7.4+ You can manage account groups from the Applications menu or use Liferay's REST APIs. Call these services to create and manage account groups. ...
Configuring Liferay PaaS for Client Extensions
Configuring Liferay PaaS for Client Extensions Beta Feature Client extensions are the ideal way to deploy various customizations and changes to Liferay DXP in cloud environments. Here are some...
Workflow Definition Link API Basics
Official Documentation
Workflow Definition Link API Basics Liferay DXP 2025.Q1+/Portal GA132+ You can manage workflow definition links from the Liferay UI or using Liferay's REST APIs. In Liferay, the Control Panel →...