- 4.4.2 Event Methods
- 4.4.2.1 Event Constructor
- 4.4.2.2 Event::getName()
- 4.4.2.3 Event::getTable()
- 4.4.2.4 Event::getTableName()
- 4.4.2.5 Event::getTableEvent()
- 4.4.2.6 Event::getDurability()
- 4.4.2.7 Event::getReport()
- 4.4.2.8 Event::getNoOfEventColumns()
- 4.4.2.9 Event::getEventColumn()
- 4.4.2.10 Event::getObjectStatus()
- 4.4.2.11 Event::getObjectVersion()
- 4.4.2.12 Event::getObjectId()
- 4.4.2.13 Event::setName()
- 4.4.2.14 Event::setTable()
- 4.4.2.15 Event::addTableEvent()
- 4.4.2.16 Event::setDurability()
- 4.4.2.17 Event::setReport()
- 4.4.2.18 Event::addEventColumn()
- 4.4.2.19 Event::addEventColumns()
- 4.4.2.20 Event::mergeEvents()
Description.
This method is used to set the merge events
flag, which is false by
default. Setting it to true implies that
events are merged as follows:
For a given
NdbEventOperationassociated with this event, events on the same primary key within the same global checkpoint index (GCI) are merged into a single event.A blob table event is created for each blob attribute, and blob events are handled as part of main table events.
Blob post/pre data from blob part events can be read via
NdbBlobmethods as a single value.
Note
Currently this flag is not inherited by
NdbEventOperation, and must be set on
NdbEventOperation explicitly. See
Section 4.11, “The NdbEventOperation Class”.
Signature.
void mergeEvents
(
bool flag
)
Parameters.
A Boolean flag value.
Return Value. None.