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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

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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...

Adding Model Hints

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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....

Defining Entity Relationships

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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...

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,...

Understanding and Extending Generated Classes

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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

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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...

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

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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...

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...

Invoking Actions with MVC Portlet

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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...

Liferay Faces Portal

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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...

MVC Resource Command

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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...

Using MVC

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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...

CDI Portlet Predefined Beans

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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...

Liferay Faces Alloy

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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...

MVC Render Command

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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...

Liferay Faces Bridge

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Liferay Faces Bridge Liferay Faces Bridge enables you to deploy JSF web apps as portlets without writing portlet-specific code. It also contains innovative features that make it possible to...

MVC Action Command

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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...

Portlet Preferences

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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...

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...

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...

Rendering Views with MVC Portlet

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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...

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:...

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...

Line Charts

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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 ...

Predictive Charts

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Predictive Charts Predictive charts let you visualize current data along with predicted/forecasted data within a given value range. Predicted/forecasted data is surrounded by a highlighted area of...

Bar Charts

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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...

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...

Pie Charts

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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....

Refreshing Charts to Reflect Real Time Data

Official Documentation

Refreshing Charts to Reflect Real Time Data The polling interval property is an optional property for all charts. It specifies the time in milliseconds for the chart's data to refresh. You can use...

Spline Charts

Official Documentation

Spline Charts Spline charts contain multiple sets of data. A spline chart connects points of data with a smooth curve. Each data series (created with the addColumns() method) is defined with a new...

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...

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,...

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 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...

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...

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 Cards

Official Documentation

Clay Cards Cards visually represent data. Use them for images, document libraries, user profiles and more. There are four main types of Cards: Image Cards File Cards User Cards Horizontal...

Liferay UI Tag Library

Official Documentation

Liferay UI Tag Library The Liferay UI tag library provides tags that implement commonly used UI components. These tags make your markup consistent, responsive, and accessible. You can find a list...

Liferay UI Icon Help

Official Documentation

Liferay UI Icon Help The icon help tag lets you communicate additional information to your users in an unobtrusive way. It renders as an iconic question mark that provides more information through...

Liferay UI Icons

Official Documentation

Liferay UI Icons The Liferay UI taglibs provide several icons you can include in your apps. To add an icon to your app, use the liferay-ui:icon tag and specify the icon with either the icon,...

Using Liferay Util Body Bottom

Official Documentation

Using Liferay Util Body Bottom The body bottom tag is not a self-closing tag. It lets you add additional HTML or scripts to the bottom of the body tag. content placed between the opening and...

Clay Management Toolbar

Official Documentation

Clay Management Toolbar The Management Toolbar gives administrators control over search container results in their apps. It lets you filter, sort, and choose a view type for search results, so you...

Liferay UI Icon Menus

Official Documentation

Liferay UI Icon Menus You can add a pop-up navigation menu to your app with the liferay-ui:icon-menu tag. Icon menus display menu options when needed, storing them away in a collapsed menu when...

Liferay Util Tag Library

Official Documentation

Liferay Util Tag Library The Liferay Util taglib is used to pull other resources into a portlet or theme. You can use it to specify which resources to insert at the bottom or top of the page's...

Liferay Portlet Objects For JSPs

Official Documentation

Liferay Portlet Objects For JSPs You may have noticed the tag in your JSPs. Similar to the theme:defineObjects tag, when you include this tag in your JSP, you gain access to several variables ...

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. "...

Liferay UI Icon Lists

Official Documentation

Liferay UI Icon Lists An icon list displays icons in a horizontal list, instead of in a pop-up navigation menu like an icon menu. You can see an example of an icon list menu in a message board...

Liferay UI Tabs

Official Documentation

Liferay UI Tabs Tabs create dividers that organize content into individual sections. Content can be embedded or included from another JSP. To add tabs to your app, use the tag and specify each...

Using Liferay Util Buffer

Official Documentation

Using Liferay Util Buffer The buffer tag is not a self-closing tag. The content placed between the opening and closing of this tag is saved to a buffer and its output is assigned to the Java...

Using Liferay Util Body Top

Official Documentation

Using Liferay Util Body Top The body top tag is not a self-closing tag. The content placed between the opening and closing of this tag is moved to the top of the body tag. When something is passed...

Using Liferay Util HTML Bottom

Official Documentation

Using Liferay Util HTML Bottom The HTML bottom tag is not a self-closing tag. Content placed between the opening and closing of this tag is moved to the bottom of the tag. When something is passed...

Using Liferay Util HTML Top

Official Documentation

Using Liferay Util HTML Top The HTML top tag is not a self-closing tag. The content placed between the opening and closing of this tag is moved to the tag. When something is passed using this...

PortletMVC4Spring Project Anatomy

Official Documentation

PortletMVC4Spring Project Anatomy PortletMVC4Spring portlets are packaged in WARs. Liferay provides Maven archetypes for creating projects configured to use JSP/JSPX and Thymeleaf templates. Their...

Generating Translations Automatically

Official Documentation

Generating Translations Automatically Liferay DXP supports 50 languages out-of-the-box. Each locale has its own language properties file containing keys for its language. When you create an...

Sharing Localized Messages

Official Documentation

Sharing Localized Messages As you work on an application you might have multiple modules, each of which with its own language keys. Instead of maintaining various language properties files in...

Using Localized Messages in an MVC Portlet

Official Documentation

Using Localized Messages in an MVC Portlet Liferay's localization framework is for creating localized messages in your MVC portlet. Deploy the Sample Code Then, follow these steps: Download...

Using Liferay Util Include

Official Documentation

Using Liferay Util Include The include tag lets you include other JSP files in your portlet's JSP, theme, or web content. This can increase readability as well as provide separation of concerns for...

Aggregating Resource Bundles

Official Documentation

Aggregating Resource Bundles When working with a module that shares localized messages, the bnd header must specify the resource bundles you want to associate with the module. Liferay provides a...

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