| | Storage package is used to write and read persistent objects.
These objects are read and written by a retrieval or storage
algorithm (Storage_Schema object) in a container (disk, memory,
network ...). Drivers (FSD_File objects) assign a physical
container for data to be stored or retrieved.
The standard procedure for an application in
reading a container is the following:
- open the driver in reading mode,
- call the Read function from the schema,
setting the driver as a parameter. This function returns
an instance of the Storage_Data class which contains the data being read,
- close the driver.
The standard procedure for an application in writing a container is the following:
- open the driver in writing mode,
- create an instance of the Storage_Data class, then
add the persistent data to write with the function AddRoot,
- call the function Write from the schema,
setting the driver and the Storage_Data instance as parameters,
- close the driver.
More...
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1.6.3