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Merged in rog-party-participants-comment (pull request #510)

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Added comment around usage of 'parties' in DealStates.
This commit is contained in:
Roger Willis 2016-11-22 09:47:40 +00:00
commit 81b9cd6840
1 changed files with 13 additions and 1 deletions
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14
core/src/main/kotlin/net/corda/core/contracts/Structures.kt
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@ -276,7 +276,19 @@ interface DealState : LinearState {
/** Human readable well known reference (e.g. trade reference) */
val ref: String
/** Exposes the Parties involved in a generic way */
/**
* Exposes the Parties involved in a generic way.
*
* Appears to duplicate [participants] a property of [ContractState]. However [participants] only holds public keys.
* Currently we need to hard code Party objects into [ContractState]s. [Party] objects are a wrapper for public
* keys which also contain some identity information about the public key owner. You can keep track of individual
* parties by adding a property for each one to the state, or you can append parties to the [parties] list if you
* are implementing [DealState]. We need to do this as identity management in Corda is currently incomplete,
* therefore the only way to record identity information is in the [ContractState]s themselves. When identity
* management is completed, parties to a transaction will only record public keys in the [DealState] and through a
* separate process exchange certificates to ascertain identities. Thus decoupling identities from
* [ContractState]s.
* */
val parties: List<Party>
/**