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Strolch Mascot

The Agile Parameterized Framework

Strolch is a unique Java framework designed for rapid development of robust, data-centric applications. It moves away from traditional Object-Relational Mapping (ORM) and instead uses a powerful abstract model that fits almost any domain.

Why Strolch?

  • ⚡ Rapid Development: Define your data model in XML and start building business logic immediately.
  • 🧩 Simple Abstract Model: Everything is a Resource, an Order, or an Activity.
  • 💾 Flexible Persistence: Transparently switch between PostgreSQL, XML, or even transient in-memory storage.
  • 🔒 Built-in Security: Multi-client (realm) support and fine-grained privilege handling are core features.
  • 🚀 In-Memory Speed: Enjoy the performance of in-memory data access with the reliability of persisted storage.

Core Concepts

At the heart of Strolch are three fundamental elements:

  1. Resources: Represent static data like products, users, or machines.
  2. Orders: Represent dynamic data like customer orders, tasks, or logs.
  3. Activities: Represent workflows and processes, from simple steps to complex hierarchies.

Every element is parameterized, meaning you can add new fields (Parameters) grouped in Bags at any time without changing your database schema or Java classes.

<Resource Id="myMachine" Name="Drilling Machine" Type="Machine">
    <ParameterBag Id="parameters" Name="Parameters" Type="Parameters">
        <Parameter Id="serial" Name="Serial Number" Type="String" Value="SN-12345"/>
        <Parameter Id="weight" Name="Weight" Type="Float" Value="150.5"/>
    </ParameterBag>
</Resource>

Key Features

  • Transactions: Robust transaction management with pessimistic locking.
  • Search API: Fluent API for querying your data model efficiently.
  • Service & Command Pattern: Encapsulate your business logic in reusable, testable units.
  • Policy-Based Logic: Easily swap algorithms at runtime using the Policy pattern.
  • Reporting: Powerful reporting engine that works directly on your model elements.
  • REST & OpenAPI: Fully documented REST API for remote access.
  • Admin UI: Ready-to-use WebComponents for data inspection, user management, and more.

Get Started in Minutes

Ready to dive in? Check out our Tutorial to build your first Strolch application, or explore the Documentation for a deep dive into the framework.

Strolch is actively developed and used in production environments ranging from industrial PLC control systems to high-level ERP integrations.

Learn more about the history of Strolch