Method for collapsing a version tree which depicts a history of

Details Method for collapsing a version tree which depicts a history of Method for collapsing a version tree which depicts a history of

1995-06-09

1997-09-23

Teska, Kevin J.

395601, 395619, 395712, G06F 1730

Patent

active

056713983

ABSTRACT:
The method of the present invention is useful in a computer system having a user interface, a memory, a database and a repository operative in the computer system for accessing the database. The method is implemented by the computer system for collapsing a version tree that depicts a history of objects stored in the database. The method, which is stored in the memory at run-time, comprises the steps of validating collapse request by insuring that the target object is not a ghost object, the end object is not a ghost, the end object is on the same version tree as the target object, and the end object is a later version than the target object. An empty array representing path objects is initialized from the target object to the end object; and if an end object is supplied, a function is called to build up an array of objects representing paths from the target object to the end object. The array of objects built up in the preceding steps is processed. For each nextVersion of the target object, a function is called to collapse the versions starting from nextVersion; and, a function is also called to destruct the target object.

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Dittrich et al. "Version Support for Engineering Database Systems" IEEE Transactions on Software Engineering, vol. 14, No. 4, Apr. 1988.

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