Jul 20, 2023

Persistency for perl data structures

The Storable package brings you persistency for your perl data structures containing SCALAR, ARRAY, HASH or REF objects, i.e. anything that can be conveniently stored to disk and retrieved at a later time.

It can be used in the regular procedural way by calling store with a reference to the object to store, and providing a file name. The routine returns undef for I/O problems or other internal error, a true value otherwise. Serious errors are propagated as a die exception.

To retrieve data stored to disk, you use retrieve with a file name, and the objects stored into that file are recreated into memory for you, and a reference to the root object is returned. In case an I/O error occurred while reading, undef is returned instead. Other serious errors are propagated via die.

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