de.zib.scalaris.operations
Interface TransactionSingleOpOperation
- All Superinterfaces:
- Operation
- All Known Implementing Classes:
- AddDelOnListOp, AddOnNrOp, PartialReadOp, ReadOp, ReadRandomFromListOp, ReadSublistOp, TestAndSetOp, WriteOp
public interface TransactionSingleOpOperation
- extends Operation
An operation suitable for use in TransactionSingleOp
.
- Since:
- 3.14
- Version:
- 3.18
- Author:
- Nico Kruber, kruber@zib.de
processResultSingle
Object processResultSingle()
throws NotFoundException,
KeyChangedException,
NotANumberException,
NotAListException,
AbortException,
EmptyListException,
UnknownException
- Processes the result set by
Operation.setResult(OtpErlangObject, boolean)
assuming that operation was committed.
In contrast to Operation.processResult()
operations like WriteOp
will throw a proper AbortException
for their commit part instead
of an UnknownException
.
Note: the created value is not cached!
- Returns:
- a (potentially) read value (may be null)
- Throws:
NotFoundException
- if the requested key does not exist
KeyChangedException
- if the key did not match old_value
NotANumberException
- if the previously stored value was not a number
NotAListException
- if the previously stored value was no list
EmptyListException
- if the stored value is an empty list but the op requires a
non-empty list
AbortException
- if a commit failed
UnknownException
- if any other error occurs- Since:
- 3.18