Method and apparatus for enabling persistent attributes in an object oriented environment
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 9, 1999
Grant Date -
N/A
app pub date -
Mar 20, 1996
filing date -
Mar 20, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for saving and restoring persistent objects in a distributed object-oriented programming environment. This invention maintains persistent values for individual attributes and or instance variables. Attribute persistence is implemented using an interface that is inherited by any class that wants to have persistent attributes. The interface provides load.sub.-- attribute and store.sub.-- attribute methods that provide TypeCode based encoding and decoding. The methods provide improved performance by maintaining a cached copy of the encoded attribute and its TypeCode in memory in addition to the copy that exist in external storage. This allows the load.sub.-- attribute method to return the attribute without having to access external storage. Performance is enhanced during the object restoration process by restoring only the attribute values currently needed instead of the entire object. In addition, the invention keeps the contents of external storage in synchronization with the internal objects state thus improving the data integrity of the distributed object-oriented programming environment. This is accomplished by saving attribute data whenever it is updated.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully