- 4.9.2 NdbBlob Methods
- 4.9.2.1 NdbBlob::getState()
- 4.9.2.2 NdbBlob::getValue()
- 4.9.2.3 NdbBlob::setValue()
- 4.9.2.4 NdbBlob::setActiveHook()
- 4.9.2.5 NdbBlob::getVersion()
- 4.9.2.6 NdbBlob::getNull()
- 4.9.2.7 NdbBlob::setNull()
- 4.9.2.8 NdbBlob::getLength()
- 4.9.2.9 NdbBlob::truncate()
- 4.9.2.10 NdbBlob::getPos()
- 4.9.2.11 NdbBlob::setPos()
- 4.9.2.12 NdbBlob::readData()
- 4.9.2.13 NdbBlob::writeData()
- 4.9.2.14 NdbBlob::getColumn()
- 4.9.2.15 NdbBlob::getNdbError()
- 4.9.2.16 NdbBlob::blobsFirstBlob()
- 4.9.2.17 NdbBlob::blobsNextBlob()
- 4.9.2.18 NdbBlob::getBlobEventName()
- 4.9.2.19 NdbBlob::getBlobTabletName()
Description. This method is used to distinguish whether a blob operation is statement-based or event-based.
Signature.
void getVersion
(
int& version
)
Parameters. This method takes a single parameter, an integer reference to the blob version (operation type).
Return Value. One of the following three values:
-1: This is a “normal” (statement-based) blob.0: This is an event-operation based blob, following a change in its data.1: This is an event-operation based blob, prior to any change in its data.
Note
getVersion() is always successful, assuming
that it is invoked as a method of a valid
NdbBlob instance.