Jodd Components Explained: Core, Lagarto, Petite, and More

Jodd Components Explained: Core, Lagarto, Petite, and More

Overview

Jodd is a modular Java toolkit offering lightweight libraries for common development needs. It emphasizes small, focused components that can be used independently.

Core

• Purpose: Utility classes and foundational APIs used across other Jodd modules.
• Key features: string helpers, collections utilities, reflection helpers, configuration loaders, I/O utilities.
• Use case: Drop-in utilities to simplify routine tasks without pulling heavy dependencies.

Lagarto

• Purpose: HTML/XML parser and template engine foundation.
• Key features: tolerant parsing of malformed HTML, fast DOM-like API, token-based parsing suitable for high-performance scenarios.
• Use case: Parsing or manipulating HTML/XML, building fast templating or scraping tools.

Petite

• Purpose: Lightweight dependency injection (DI) container.
• Key features: constructor/setter injection, annotations support, lifecycle callbacks, simple configuration.
• Use case: Small applications or libraries that need DI without full-featured frameworks like Spring.

Other Notable Modules

• Madvoc: MVC web framework built on top of Jodd components; minimal and fast.
• Proxetta: Runtime proxy generation for method interception (AOP-style).
• Vibe: Asynchronous utilities and concurrency helpers.
• Lagarto-SL (or templating addons): Template engines and extensions leveraging Lagarto parsing.
• Petite-Props / Jodd-Config: Configuration integration for Petite-managed components.

When to Choose Jodd

• Preference for minimal, modular libraries over large frameworks.
• Need for fast parsing or lightweight DI in microservices, CLI tools, or small web apps.
• Projects where keeping dependencies and startup time low is important.

Quick example (Petite DI)

java
Copy CodeCopied
// Define a component
public class HelloService {
public String sayHello() { return “Hello Jodd”; }
}

// Register and use
PetiteContainer pc = new PetiteContainer();
pc.registerBean(HelloService.class);
HelloService svc = pc.getBean(HelloService.class);
System.out.println(svc.sayHello());

Resources

• Official Jodd site and GitHub repo for module docs and examples.