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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.
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Performance tuning of the new checkpoint schema; - Checkpoint tables are now using `flowId` as join keys. - Indexes consist of a PK's index on `node_checkpoints(flow_id)` and then unique indexes on `node_checkpoint_blobs(flow_id)` and `node_flow_metadata(flow_id)`. - Serialization of `checkpointState` is being done with `CHECKPOINT_CONTEXT` so that we can have compression. This is needed when messages get passed into `checkpointState.sessions` therefore `checkpointState` grows in size upon serialized and saved into the database. * Deserialize checkpointState with CHECKPOINT_CONTEXT * Align tests with schema update; We cannot add and update a checkpoint in the same session now, ends up with hibernate complaining: two different objects with same identifier * Fix indentation and format * Ignore tests that assert DBFlowResult or DBFlowException * Set DBFlowCheckpoint.blob to null whenever the flow errors or hospitalizes; this way we save an extra SELECT in such cases; * Fix test; cleared Hibernate session, it would fail at checkpoint with 'org.hibernate.NonUniqueObjectException' * Changing VARCHAR to NVARCHAR * Rename v17 liquibase scripts to v19 to resolve collision with ENT v17 scripts |
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| LICENSE | ||
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| SECURITY.md | ||
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| TRADEMARK | ||
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
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