Package com.exonum.binding.core.transaction

Interface Transaction

Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface
public interface Transaction
An Exonum transaction.
See Also:
Exonum Transactions, Exonum Services

  • Method Summary

    Modifier and Type Method Description
    void execute​(TransactionContext context)
    Execute the transaction, possibly modifying the blockchain state.

  • Method Details

    • execute

      void execute​(TransactionContext context) throws TransactionExecutionException
      Execute the transaction, possibly modifying the blockchain state.
      Parameters:
      context - a transaction execution context, which allows to access the information about this transaction and modify the blockchain state through the included database fork
      Throws:
      TransactionExecutionException - if the transaction cannot be executed normally and has to be rolled back. The transaction will be committed as failed (error kind SERVICE), the error code with the optional description will be saved into the storage. The client can request the error code to know the reason of the failure
      RuntimeException - if an unexpected error occurs. A correct transaction implementation must not throw such exceptions. The transaction will be committed as failed (status "panic")