NexusDB

 
Declaration

TnxBlockModeBlobStream = class(TnxBaseBlobStream)

 
Description

This class is used if the dataset is in block read mode.

Never create instances directly! Always use TnxDataSet.CreateBlobStream, which will create the right type of blob stream based on the state of the dataset.

The blob stream should be freed again as soon as possible. It must be freed before calling Post or moving to another record.

 
See Also

TnxDataSet.CreateBlobStream TnxBaseBlobStream TnxBlobStream TnxBatchAppendBlobStream

 
Methods

Read

With this method you can read a number of bytes of the blob data.

Seek

Seek sets the current position in the blob stream.

Write

Use Write to write a number of bytes to the blob at the current position. Take care to not accidentally overwrite data by not positioning with Seek first.

 
File

 
nxdb