ChangelogReaderIF (Ontopia)

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

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`ChangeType`	`getChangeType()`	INTERNAL: Returns the type of change that the current tuple went through.
`String`	`getOrderValue()`	INTERNAL: Returns the current order value found in the order-column.

Methods inherited from interface net.ontopia.topicmaps.db2tm.TupleReaderIF
close, readNext

- Method Detail
  - getChangeType
```
ChangeType getChangeType()
```
    INTERNAL: Returns the type of change that the current tuple went through.
  - getOrderValue
```
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.