mirror of
https://github.com/corda/corda.git
synced 2025-02-21 01:42:24 +00:00
ad61d7b3f4
Making statemachine not remove COMPLETED flows' checkpoints from the database if they are started with a clientId, instead they are getting persisted and retained within the database along with their result (`DBFlowResult`). On flow start with a client id (`startFlowDynamicWithClientId`), if the client id maps to a flow that was previously started with the same client id and the flow is now finished, then fetch the `DBFlowResult` from the database to construct a `FlowStateMachineHandle` done future and return it back to the client. Object stored as results must abide by the storage serializer rules. If they fail to do so the result will not be stored and an exception is thrown to the client to indicate this.
Corda
Corda is an open source blockchain project, designed for business from the start. Only Corda allows you to build interoperable blockchain networks that transact in strict privacy. Corda's smart contract technology allows businesses to transact directly, with value.
Features
- Smart contracts that can be written in Java and other JVM languages
- Flow framework to manage communication and negotiation between participants
- Peer-to-peer network of nodes
- "Notary" infrastructure to validate uniqueness and sequencing of transactions without global broadcast
- Enables the development and deployment of distributed apps called CorDapps
- Written in Kotlin, targeting the JVM
Getting started
- Read the Getting Started documentation
- Run the Example CorDapp
- Read about Corda's Key Concepts
- Follow the Hello, World! tutorial
Useful links
- Project Website
- Mailing List
- Documentation
- Stack Overflow Tag
- Slack Channel
- Meetups
- Training Courses
Contributing
Corda is an open-source project and contributions are welcome!
To find out how to contribute, please see our contributing docs.
License
Acknowledgements
YourKit supports open source projects with its full-featured Java Profiler.
YourKit, LLC is the creator of YourKit Java Profiler and YourKit .NET Profiler, innovative and intelligent tools for profiling Java and .NET applications.