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メッセージバス
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...
メッセージのリッスン
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...
旧バージョンのデフォルトの同期メッセージングを使用する
Using Default Synchronous Messaging in Previous Versions Liferay DXP 7.4 U48/Portal GA49 and Below In default synchronous messaging, the sender blocks while a Message Bus thread dispatches the...
ポートレットのID
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...
登録イベントをリッスンする
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...
ポートレット
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...
アセットフレームワーク
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...
アイテムセレクターの実装
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...
動的クエリの使用
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...
カスタムSQLクエリの使用
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...
高度なクエリ
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...
ドメイン固有言語クエリの使用
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...
サービスビルダーを使用したビジネスロジック
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...
エンティティの定義
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...
エンティティファインダーメソッドの定義
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,...
開発中のデータベースフィールドの変更
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...
グローバルサービスオプションの構成
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...
エンティティ列の定義
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...
エンティティインスタンスのソート
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...
モデルコード、永続性コード、およびサービスコードの生成
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...