The MySQL Cluster API Developers' Guide :: 4 NDB API Classes, Interfaces, and Structures :: 4.11 The NdbEventOperation Class :: 4.11.2 NdbEventOperation Methods :: 4.11.2.6 NdbEventOperation::getPreBlobHandle()
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- 4.11.2 NdbEventOperation Methods
- 4.11.2.1 NdbEventOperation::getState()
- 4.11.2.2 NdbEventOperation::getEventType()
- 4.11.2.3 NdbEventOperation::getValue()
- 4.11.2.4 NdbEventOperation::getPreValue()
- 4.11.2.5 NdbEventOperation::getBlobHandle()
- 4.11.2.6 NdbEventOperation::getPreBlobHandle()
- 4.11.2.7 NdbEventOperation::getGCI()
- 4.11.2.8 NdbEventOperation::getLatestGCI()
- 4.11.2.9 NdbEventOperation::getNdbError()
- 4.11.2.10 NdbEventOperation::isConsistent()
- 4.11.2.11 NdbEventOperation::tableNameChanged()
- 4.11.2.12 NdbEventOperation::tableFrmChanged()
- 4.11.2.13 NdbEventOperation::tableFragmentationChanged()
- 4.11.2.14 NdbEventOperation::tableRangeListChanged()
- 4.11.2.15 NdbEventOperation::mergeEvents()
- 4.11.2.16 NdbEventOperation::execute()
Description.
This function is the same as
getBlobHandle(), except that it is used to
access the previous value of the blob attribute. See
Section 4.11.2.5, “NdbEventOperation::getBlobHandle()”.
Signature.
NdbBlob* getPreBlobHandle
(
const char* name
)
Parameters.
The name of the blob attribute.
Return Value.
A pointer to an NdbBlob. See
Section 4.9, “The NdbBlob Class”.
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