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Creating OSGi Modules and Sharing Packages

  Overview This guide walks through creating two OSGi modules in Liferay 7.4 and sharing a Java package between them using the standard API + Implementation pattern. This is the most common and correct approach for exposing reusable services in a Liferay-based architecture. In OSGi, a bundle (module) does not expose its internal packages by default — everything is private unless explicitly exported. To share code between modules, the standard practice is to split functionality into: · An API module — contains interfaces/DTOs and exports the package · A Service (Implementation) module — implements the interface, imports the package, and registers the implementation as an OSGi component/service The consuming module then simply imports the API package and looks up the service using @Reference injection. Step 1: Create the API Module Using Liferay Workspace + Blade CLI, generate a new API module: blade create -t api -p com.sgc.greeting greeting-api This generates a Gradle module unde...
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Client Extensions-Liferay 7.4

  Introduction to Client Extensions Liferay 7.4 introduced Client Extensions (CX) as a paradigm shift in how developers extend and customize the Liferay DXP platform. Unlike traditional OSGi modules that require deployment inside the Liferay runtime, Client Extensions run outside the portal — making them language-agnostic, independently deployable, and significantly easier to maintain. This guide walks you through building a fully functional React-based Client Extension (Custom Element) that integrates with Liferay's Headless Delivery API, and then covers every major Client Extension type available in Liferay 7.4. Why Client Extensions? Client Extensions decouple frontend and backend concerns. You can build in React, Vue, Angular, or plain JavaScript — without touching the portal's OSGi container. Deployments become simpler, CI/CD pipelines become faster, and teams can work independently. Client Extension Types at a Glance...
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Service Builder Implementation in Liferay 7.4

  If you've worked with Liferay DXP, you already know that building custom data-driven portlets involves a lot of boilerplate — entity models, persistence layers, service interfaces, SQL scripts. Service Builder exists to eliminate exactly that. In this guide, we'll walk through everything you need to know to use Service Builder effectively in Liferay DXP 7.4, from project setup to production best practices. What Is Service Builder? Service Builder is Liferay's proprietary code generation framework. You describe your data model in a single XML file ( service.xml ), and Service Builder generates a fully functional, layered Java application stack — models, persistence, services, and SQL DDL — all wired into Liferay's OSGi and Declarative Services (DS) framework. The layers it generates automatically include: Model Layer — Entity POJOs and their implementations Persistence Layer — Hibernate-based DAOs with auto-generated finder methods Service Layer — Local s...
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service builder with crud operation in liferay

   Crud and Search opration in Liferay:      ->  Liferay use service builder techniq for Crud opration.    ->  Service builder purform by  Service.xml file.    ->  Service.xml file create table in database and also create class and diffrent method.   1)      Create service.xml file.             ->Create service.xml file in WEB-INF and write below code.             ->CODE:        < service-builder package-path = "com.test" >         < namespace > qr </ namespace >           < entity name = "Searchclass" local-service = "true"                     ...
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How to create new site programmaticly in liferay with validation

Create site in liferay <%@page import="javax.portlet.PortletPreferences"%> <%@page import="com.liferay.portal.kernel.util.ParamUtil"%> <%@page import="com.liferay.portal.kernel.util.HtmlUtil"%> <%@page import="com.liferay.portal.kernel.util.StringPool"%> <%@page import="com.liferay.portal.kernel.util.UnicodeProperties"%> <%@page import="com.liferay.portal.service.LayoutSetPrototypeServiceUtil"%> <%@page import="com.liferay.portal.model.LayoutSetPrototype"%> <%@page import="com.liferay.portal.service.GroupLocalServiceUtil"%> <%@page import="java.util.List"%> <%@page import="com.liferay.portal.kernel.bean.BeanParamUtil"%> <%@page import="com.liferay.portal.theme.ThemeDisplay"%> <%@page import="com.liferay.portal.model.Group"%> <%@page import="com.liferay.portal.kernel.util.WebK...
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The Ultimate Guide to Liferay DXP Performance Tuning: Speed Up Your Portal

The Ultimate Guide to Liferay DXP Performance Tuning: Speed Up Your Portal In the enterprise web space, milliseconds equal millions. Whether you are running a B2B commerce storefront, a customer support portal, or an employee intranet on Liferay DXP, slow load times will devastate your user experience and destroy your SEO rankings. Out of the box, Liferay is configured to run on almost any machine. This means its default settings are highly conservative to ensure compatibility, not maximum performance. If you are launching a production environment without tuning your server, you are leaving massive amounts of speed and scalability on the table. In this comprehensive, deep-dive guide, we are going to explore the critical layers of Liferay performance tuning. We will cover backend Java Virtual Machine (JVM) configuration, Database Connection Pooling, Elasticsearch optimization, and Frontend caching strategies. By the end of this guide, you will have a blazing-fast, enterprise-grade...
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