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Configuring service.properties
Official Documentation
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...
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...
Upgrading Faces to Jakarta
Official Documentation
Upgrading Faces to Jakarta Liferay DXP 2026.Q1+ Liferay Faces now uses the jakarta.* namespace to align with Jakarta EE 9 APIs. Migrating an existing Liferay Faces (JSF) portlet from the legacy...
Using MVC
Official Documentation
Using MVC If you're an experienced developer, this is not the first time you've heard about Model View Controller. If there are so many implementations of MVC frameworks in Java, why did Liferay...
Invoking Actions with MVC Portlet
Official Documentation
Invoking Actions with MVC Portlet A portlet's Action phase applies state changes. You can bind your portlet's action-handling methods to UI components using portlet action URLs. They are...
MVC Action Command
Official Documentation
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...
MVC Render Command
Official Documentation
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...
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...
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...
Using Upgrade Processes in Earlier Versions
Official Documentation
Using Upgrade Processes in Earlier Versions Liferay DXP 7.4 U10/Portal 7.4 GA14 and Below Follow these steps to create an upgrade process for your module: Open your module's bnd.bnd file, and...
Using Upgrade Processes
Official Documentation
Using Upgrade Processes Liferay DXP 7.4 U10+/Portal 7.4 GA14+ An upgrade of your application may require making changes to your database tables. Liferay's upgrade framework makes it easy to make...
Developing a Web Application
Official Documentation
Developing a Web Application
Using Bean Portlet
Official Documentation
Using Bean Portlet Portlet 3.0, the JSR 362 standard, features a style of portlet development called Bean Portlets that use Contexts and Dependency Injection (CDI). Bean Portlets fully leverage all...
Liferay Faces Bridge
Official Documentation
Liferay Faces Bridge You can use Liferay Faces Bridge to deploy JSF web apps as portlets without writing portlet-specific code. It also includes features that support JSF 2.x inside a portlet...
Liferay Faces Portal
Official Documentation
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...
Liferay Faces Version Scheme
Official Documentation
Liferay Faces Version Scheme Use this reference to identify which Liferay Faces artifacts to include in your portlet and to understand what each component of the version number means. Liferay...
Alloy UI (AUI) Tag Library
Official Documentation
Alloy UI (AUI) Tag Library The AUI tag library provides tags that implement commonly used UI components. These tags make your markup consistent, responsive, and accessible. You can find a list of...
Tag Libraries
Official Documentation
Tag Libraries You have access to a powerful set of taglibs for creating commonly used UI components in your apps, themes, and web content. The following taglibs are covered in this section: AUI:...
Building Forms with AUI Tags
Official Documentation
Building Forms with AUI Tags The AUI tag library provides all the components you need to build forms for your applications. AUI tags provide many benefits to standard form elements, such as custom...
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...
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,...
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...
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...
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,...
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...
Data Scopes
Official Documentation
Data Scopes
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...
Expando
Official Documentation
Expando Accessing Custom Fields with Expando
Using Dynamic Query
Using Dynamic Query Liferay's Dynamic Query API wraps Hibernate's Criteria API. It helps you think in terms of objects and member variables instead of tables and columns. Complex queries can be...
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...
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...
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...
Multithreading Process
Official Documentation
Multithreading Process Liferay DXP 7.4 U10+ or Liferay Portal 7.4 GA14+ Your Upgrade Processes may involve making complex changes to large data sets. If performance is critical, use the...
Liferay Faces Alloy
Official Documentation
Liferay Faces Alloy Liferay Faces Alloy is distributed in a .jar file. You can add Liferay Faces Alloy as a dependency to your portlet projects, to use AlloyUI in a way that is consistent with JSF...
Reference
Official Documentation
Reference
CDI Portlet Predefined Beans
Official Documentation
CDI Portlet Predefined Beans Liferay DXP provides injectable portlet artifacts for CDI called Portlet Predefined Beans, as specified by JSR 362. There are two types of predefined beans: Portlet...
Reference
Official Documentation
Reference
Using JSF
Official Documentation
Using JSF Liferay Faces is an umbrella project that provides support for the JavaServer[™] Faces (JSF) standard in Liferay DXP/Portal. Here are the Liferay Faces topics: Reference facilitates...
Portlet Preferences
Official Documentation
Portlet Preferences You can give administrators and users a way to customize a portlet with portlet preferences. Portlet preferences can be added to any MVC Portlet to give users a UI to access and...
MVC Resource Command
Official Documentation
MVC Resource Command MVC Resource Command classes retrieve resources: images, XML, or any other kind of resource from a DXP/Portal instance without triggering any actions or renders. Requests or...
Rendering Views with MVC Portlet
Official Documentation
Rendering Views with MVC Portlet If you want users to access your portlet's views, you must implement navigation to them. Portlet render URLs help you do this. Here you'll deploy an example...
Bar Charts
Official Documentation
Bar Charts Bar charts contain multiple sets of data. A bar chart models the data in bars. Each data series (created with the addColumns() method) is defined with a new instance of the...
Chart Tag Library
Official Documentation
Chart Tag Library The Chart tag libraries were removed in Liferay DXP 2023.Q4. See the 7.4 breaking changes reference for details. This article remains for users on earlier versions. Lines,...
Gauge Charts
Official Documentation
Gauge Charts Gauge charts are percentage-based. A gauge chart shows where percentage-based data falls over a given range. Each data set must be defined as a new instance of the SingleValueColumn...
Geomap Chart
Official Documentation
Geomap Chart A Geomap Chart shows data based on geography, given a specified color range---a lighter color representing a lower rank and a darker a higher rank usually. The default configuration...
Donut Charts
Official Documentation
Donut Charts Donut charts are percentage-based. A donut chart is similar to a pie chart, but it has a hole in the center. Each data set must be defined as a new instance of the SingleValueColumn...
Line Charts
Official Documentation
Line Charts Line charts contain multiple sets of data. A Line chart displays the data linearly. Each data series (created with the addColumns() method) is defined with a new instance of the ...
Combination Charts
Official Documentation
Combination Charts Combination charts have minor differences from other charts. In a combination chart, you must define the representation type of each data set: AREA, AREA_SPLINE, AREA_STEP, BAR,...
Clay Navigation Bars
Official Documentation
Clay Navigation Bars Similar to dropdown menus, navigation bars display a list of navigation items. The key difference is navigation bars are displayed in a horizontal bar with all navigation items...
Clay Labels and Links
Official Documentation
Clay Labels and Links Liferay Clay taglibs provide tags for creating labels and links in your app. Both of these elements are covered below. Labels The Liferay Clay taglibs provide a few different...
Clay Stickers
Official Documentation
Clay Stickers Whereas badges display numbers and labels display short information, stickers are small visual indicators of the content (usually the content type). They can include a small label or...
Liferay Theme Objects For JSPs
Official Documentation
Liferay Theme Objects For JSPs When you include the tag in your JSP, you gain access to several Liferay theme objects via variables. These objects are described in the table below: ...
Step Charts
Official Documentation
Step Charts Step charts contain multiple sets of data. A step chart steps between the points of data, resembling steps. Each data series (created with the addColumns() method) is defined with a new...
Scatter Charts
Official Documentation
Scatter Charts Scatter charts contain multiple sets of data. A scatter chart models the data as individual points. Each data series (created with the addColumns() method) is defined with a new...
Clay Badges
Official Documentation
Clay Badges Badges help highlight important information such as notifications or new and unread messages. Badges have circular borders and are only used to specify a number. This covers the...
Pie Charts
Official Documentation
Pie Charts Pie charts are percentage-based. A pie chart models percentage-based data as individual slices of pie. Each data set must be defined as a new instance of the SingleValueColumn object....
Clay Alerts
Official Documentation
Clay Alerts Clay alerts come in two types: embedded and stripe. Both types, along with several examples of each, are shown below. Embedded Alerts Embedded alerts are usually used inside forms. The...
Clay Form Elements
Official Documentation
Clay Form Elements The Liferay Clay tag library provides several tags for creating form elements. An example of each tag is shown below. Checkbox Checkboxes give the user a true or false input. "...
Clay Dropdown Menus and Action Menus
Official Documentation
Clay Dropdown Menus and Action Menus You can add dropdown menus to your app via the clay:dropdown-menu and clay:actions-menu taglibs. The Clay taglibs provide several menu variations for you to...

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