π Dubhe Engine Execution Model
Data Schema and State Transitions
Dubhe introduces Schema as state storage units, dramatically changing traditional Move contract state management methods.
π§± Developers define data structures (Schema) in declarative syntax in project configuration, including fields, events, and error types.
βοΈ By running the schema:gen command, Dubhe CLI reads these definitions and automatically generates corresponding Move modules, implementing these Schema storage logic on-chain.
π§ Generated Schema modules utilize Move's dynamic fields mechanism at the bottom layer, allowing contracts to flexibly add or modify storage fields without changing existing storage structures.
ποΈ This mechanism is similar to maintaining an extensible key-value store on-chain, decomposing complex data objects into manageable units at the bottom layer.
π Therefore, when a transaction triggers state transitions, system module logic calls APIs provided by Schema modules to complete on-chain data reads and writes, ensuring data structure consistency and integrity.
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