# Advanced Topics

Author: Eike Stepper

This chapter covers advanced topics for CDO client application programmers. Explore advanced customization, performance tuning, efficient handling of large models, and troubleshooting techniques to build robust and scalable CDO applications.

These topics are essential for developers who need to extend CDO, optimize resource usage, and resolve complex issues in production environments.

## 1 Custom View Providers

Extend CDO by implementing custom view providers to support specialized access patterns, security requirements, or integration scenarios. Learn how to register and use custom view providers to tailor repository access to your application's needs.

## 2 Optimizing Performance

Performance optimization is critical for large-scale and high-traffic CDO applications. This section covers strategies for reducing memory usage, minimizing network overhead, tuning fetch rules, and leveraging caching mechanisms to achieve optimal performance.

## 3 Handling Large Models Efficiently

Large models present unique challenges in terms of memory management, data loading, and responsiveness. Learn best practices for partitioning models, using lazy loading, and managing resource sets to handle large models efficiently in CDO.

## 4 Troubleshooting and Debugging

Effective troubleshooting and debugging are essential for maintaining application stability. This section provides guidance on diagnosing common issues, using CDO and Net4j logging, analyzing stack traces, and employing debugging tools to resolve problems quickly.

Copyright (c) 2004-2026 Eike Stepper (Loehne, Germany) and others.
All rights reserved. This program and the accompanying materials are made available under the terms of the Eclipse Public License v1.0 which accompanies this distribution, and is available at http://www.eclipse.org/legal/epl-v10.html