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TransactionBuilder: added a comment explaining the default notary parameter purpose

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This commit is contained in:
Andrius Dagys 2016-06-29 16:32:29 +01:00
parent d29dd121ff
commit dd9a653ab4
1 changed files with 5 additions and 0 deletions
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5
core/src/main/kotlin/com/r3corda/core/contracts/TransactionBuilder.kt
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@ -15,6 +15,10 @@ import java.util.*
*
* The builder can be customised for specific transaction types, e.g. where additional processing is needed
* before adding a state/command.
*
* @param notary The default notary that will be used for outputs that don't have a notary specified. When this is set,
* an output state can be added by just passing in a [ContractState] – a [TransactionState] with the
* default notary will be generated automatically.
*/
abstract class TransactionBuilder(protected val type: TransactionType = TransactionType.General(),
protected val notary: Party? = null) {
@ -129,6 +133,7 @@ abstract class TransactionBuilder(protected val type: TransactionType = Transact
fun addOutputState(state: ContractState, notary: Party) = addOutputState(TransactionState(state, notary))
/** A default notary must be specified during builder construction to use this method */
fun addOutputState(state: ContractState) {
checkNotNull(notary) { "Need to specify a Notary for the state, or set a default one on TransactionBuilder initialisation" }
addOutputState(state, notary!!)