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7.4 旧バージョンと非互換の変更
Official Documentation
7.4 旧バージョンと非互換の変更 破壊的変更 既存の機能やコード構造を破壊したり、大幅に変更したりする。 最初の四半期リリース（2023 Q3）から始まるLiferay 7.4のすべての変更点です。 製品の変更や改良に伴い、私たちはこうした中断を最小限に抑えるよう最善を尽くしますが、避けられない場合もあります。 Liferay ソースコード の 2023 Q3 以前からの 7.4...
フォーム・フラグメントの作成
Official Documentation
フォーム・フラグメントの作成 liferay 7.4 U45+/GA45+. フォームコンポーネントの断片 は、コンテンツページでオブジェクトのフォームを構築するためのものです。 Liferayのフォームフラグメントがあなたのユースケースを満たさない場合は、フォームに必要なデザインと機能を実現するために独自のフォームフラグメントを作成してください。 フォームの断片を作る ...
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: ...
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...
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...
Completely Custom Configuration
Official Documentation
Completely Custom Configuration A configuration UI is generated automatically when you create a configuration interface. But in some cases you want a completely custom UI for your configuration....
Configuration Form Renderer
Official Documentation
Configuration Form Renderer When you create a configuration interface, a configuration UI is automatically generated. But in some cases you want customize the look and feel of the UI. For example,...
Categorizing a Configuration
Official Documentation
Categorizing a Configuration When you register a configuration interface, the UI for your application is generated in System Settings → Platform → Third Party. If you prefer a different section and...
Configuration Framework
Official Documentation
Configuration Framework Setting and Accessing Configurations Categorizing a Configuration Scoping Configurations Portlet Level Configuration Configuration Form Renderer DDM Form Annotations ...
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...
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....
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...
Dependency Injection
Official Documentation
Dependency Injection
Setting and Accessing Configurations
Official Documentation
Setting and Accessing Configurations You can use Liferay's configuration framework to add a settings UI for a MVC Portlet. See the Example Portlet Then, follow these steps: Download and unzip...
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...
Portlet 3.0 API Opt In
Official Documentation
Portlet 3.0 API Opt In A portlet must specify version 3.0 to opt in to the Portlet 3.0 API. The 3.0 Portlet API version can be specified in the following ways. Standard Portlet @PortletApplication...
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...
Portlet Descriptor to OSGi Service Property Map
Official Documentation
Portlet Descriptor to OSGi Service Property Map Here's a map of portlet XML descriptor values to OSGi service properties for publishing OSGi Portlets. The properties centralize and simplify portlet...
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...
Portlets
Official Documentation
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
Official Documentation
Servlets
Data Frameworks
Official Documentation
Data Frameworks
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...
Enabling Assets
Official Documentation
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
Official Documentation
Data Scopes
Expando
Official Documentation
Expando Accessing Custom Fields with Expando
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...
Asset Framework
Official Documentation
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
Official Documentation
Cache
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...
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...
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...
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...
Connecting Service Builder to an External Database
Official Documentation
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...
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 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....
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,...
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...