io.goshawkdb.client

Interface TransactionFun<Result>

public interface TransactionFun<Result>

Implement this interface to create transaction funs that can be passed to Connection's runTransaction. This can neatly be done inline using a lambda expression.

Method Summary

Modifier and Type	Method and Description
Result	Run(Transaction<Result> txn) The callback invoked (potentially several times) to run your transaction.

Method Detail

Run

Result Run(Transaction<Result> txn)
    throws java.lang.Throwable

The callback invoked (potentially several times) to run your transaction. If you wish to abort the transaction, throw an exception from within.

Parameters:

txn - The API through which your transaction can navigate and interact with the object-graph stored by GoshawkDB.

Returns:

A result

Throws:

java.lang.Throwable - your callback may throw an exception, for example to indicate you wish the transaction to be aborted.