Package com.exonum.binding.time

Interface TimeSchema

public interface TimeSchema
Exonum time service database schema. It provides read-only access to the state of a time oracle service instance.
See Also:
Time oracle documentation

  • Method Details

    • newInstance

      static TimeSchema newInstance​(BlockchainData blockchainData, java.lang.String name)
      Constructs a schema of the time oracle instance with the given name.
      Parameters:
      blockchainData - the blockchain data; may come from any service
      name - the name of the time oracle service instance to use
      Throws:
      java.lang.IllegalArgumentException - if there is no service with the given name or it is not an Exonum time oracle

    • getTime

      ProofEntryIndex<java.time.ZonedDateTime> getTime()
      Returns consolidated time output by the service in UTC.

      When this time oracle instance is started, the consolidated time remains unknown until the transactions with time updates from at least two thirds of validator nodes are processed. After that the time will be always present.

    • getValidatorsTimes

      ProofMapIndexProxy<PublicKey,​java.time.ZonedDateTime> getValidatorsTimes()
      Returns the table that stores time for every validator. Note that this is a proof map that uses non-hashed keys.