net.ontopia.topicmaps.db2tm
Interface ChangelogReaderIF
- All Superinterfaces:
- TupleReaderIF
- All Known Implementing Classes:
- ChangelogReaderWrapper
public interface ChangelogReaderIF
- extends TupleReaderIF
INTERNAL: A change log reader is a tuple reader that is used to
read a change log relation. For each tuple read it also returns the
type of change and an order value that says something about the
order in which the change occurred.
Method Summary |
int |
getChangeType()
INTERNAL: Returns the type of change that the current tuple went
through. |
java.lang.String |
getOrderValue()
INTERNAL: Returns the current order value found in the
order-column. |
CHANGE_TYPE_UNKNOWN
static final int CHANGE_TYPE_UNKNOWN
- See Also:
- Constant Field Values
CHANGE_TYPE_CREATE
static final int CHANGE_TYPE_CREATE
- See Also:
- Constant Field Values
CHANGE_TYPE_UPDATE
static final int CHANGE_TYPE_UPDATE
- See Also:
- Constant Field Values
CHANGE_TYPE_DELETE
static final int CHANGE_TYPE_DELETE
- See Also:
- Constant Field Values
CHANGE_TYPE_IGNORE
static final int CHANGE_TYPE_IGNORE
- See Also:
- Constant Field Values
getChangeType
int getChangeType()
- INTERNAL: Returns the type of change that the current tuple went
through.
getOrderValue
java.lang.String getOrderValue()
- INTERNAL: Returns the current order value found in the
order-column. This information is used so that one can keep track
of incremental updates.
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