ObjectBox数据库框架

ObjectBox is a lightweight, embeddable, and efficient NoSQL document-oriented database specifically designed for Android and Flutter applications. It was created to provide developers with a fast and scalable way to store and retrieve data locally on mobile devices. ObjectBox operates in memory, which means it can offer near real-time performance and reduces network calls.

Key features of ObjectBox include:
1. **Document-based model**: It stores data as JSON-like documents, allowing you to represent complex objects easily.
2. **Automatic indexing**: It indexes fields by default, enabling efficient querying without explicit schema design.
3. **Fast performance**: Thanks to its cache mechanism and in-memory storage, ObjectBox has low latency for reads and writes.
4. **Schema-less**: You don't need to define a fixed schema, which makes it easy to adapt to changes in your data model.
5. **Realtime synchronization**: It supports offline-first scenarios and can be configured to sync with a server when the device has connectivity.

**相关问题--:**
1. How does ObjectBox compare to SQLite in terms of performance?
2. Can ObjectBox be used in other platforms besides Android and Flutter?
3. What's the process for migrating data from one ObjectBox instance to another?
4. Are there any limitations or trade-offs when using ObjectBox for large-scale applications?
5. How does ObjectBox handle security and encryption of stored data?