How to run vaultQuery on an particular account on Corda Account?

Question

Im kinda noob with Corda accounts. It says on the documentation that Node operators can partition the vault on a per entity basis. For example on one node I have created 3 accounts (say its Alice, Bob and Charlie). A simple IOU flow where Alice borrowed 50 from Bob. How do you run Alice's/Bob's/Charlie's vault? Just to make sure that Charlie wont be able to see any of Bob's or Alice's previous transaction on the same node.

Answer 1

//Get your accountInfo
val myAccount = accountService.accountInfo(Your_AccountUUID)?.state!!.data

//Build Vault Criteria
val criteria = QueryCriteria.VaultQueryCriteria(
    externalIds = listOf(myAccount.identifier.id))

//Do the query
serviceHub.vaultService.queryBy(
                contractStateType = [YOUR_CORDA_STATE]::class.java,
                criteria = criteria).states

Note: Account is not officially GA yet, so there is no R3 support yet. We would suggest waiting until the official release to use it in production.