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Internal tables (the tables from node and finance modules) are now tracked /created by Liquibase script. Tables backing MappedSchemma in Cordapps are created by Hibernate (as before). The PR scope added Liquibase library, setup code SchemaMigration and XML scripts and from Enterprise. For existing database installation - the node will auto-upgrade to use Liquibase. Method migrateOlderDatabaseToUseLiquibase checks for any 3.X existing Corda database to upgrade database to use Liquibase. When the existing database without Liquibase integral tables is detected, the node (at startup) will create Liquibase tracking tables and fill them with all migration scripts (marked as done), this ensure the database will look as it would use Liquibase from the beginning. The database changes gradually introduced by the subsequent 3.X releases (3.1, 3.2) are conditionally run by Liquibase.
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 Lists
- Documentation
- Stack Overflow Tag
- Slack Channel
- Meetups
- Training Courses
Contributing
We welcome contributions to Corda! Please see our CONTRIBUTING.md.
License
Acknowledgements
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