摘要:
Methods, computer readable medium and systems are provided for moving data objects from a first storage location to a second storage location. One or more data objects may be selected from a first storage location. An identifier of a first type may be assigned to each of the selected data objects, and an identifier of a second type may be assigned to each of the selected data objects. The second type ID may be stored in a second lock object. Systems and methods consistent with the invention may determine whether the second type ID is stored successfully, and upon a successful storage, may store the first type ID in a first lock object. The data object is then stored at a second storage location, the first ID of which is contained in the first lock object. The data object may then be deleted from the first storage location, and the second type ID is deleted from the second lock object after a particular first type ID has been stored in the first lock object.
摘要:
Methods, computer readable medium, and systems are provided for moving data objects from a first storage location to a second storage location. A data object may be selected from the first storage location. A first type identifier (ID) and a second type ID may be assigned to the data object. The second type ID may be stored in a second lock object. The first type ID may be stored in a first lock object. The data object may then be stored at the second storage location. The data object may then be deleted from the first storage location. The second type ID may then be deleted from the second lock object.
摘要:
The present invention provides methods and systems for archiving of data, that is, for moving a selected data object in a computer system from a first to a second storage location. The selected data object is assigned at least one identifier (ID) that is stored in at least one lock object. The data object is stored at the second storage location and the second storage location is associated with the ID. The data object is then deleted from the first storage location and the ID is deleted from the lock object after the storing of the data object in the second storage location has been completed. Methods and systems can check, by querying the lock object, whether the data to be accessed is subject to a moving process or not. If yes, the access to that data can be postponed until the moving is completed.
摘要:
A data structure is provided for preventing access, in a computer system, to a data object having an identifier (ID). The data structure comprises a first lock object, in which the ID of the data object is stored, and in which a link to a storage location of the data object is assigned to the ID, and a second lock object, in which the ID of the data object is stored. In one embodiment, the ID is stored in the second lock object before storing the ID in the first lock object or before assigning the storage location of the data object to the ID in first lock object. Further, the ID is deleted from the second lock object after storing the ID in the first lock object or after assigning the storage location of the data object to the ID in the first lock object. The data object may be accessible by a software application, whereby the access of the software application to the data object is prevented if the ID is stored in the first or second lock object.
摘要:
Methods, a computer readable medium, and systems are provided accessing a data object having an identifier in a computer system. The ID may be stored in a second lock object. Systems and methods consistent with the invention may determine whether the ID was stored successfully, and upon a successful storage, may check, before accessing the data object, whether the ID is contained in a first lock object. If the ID is contained in a first lock object, systems and methods consistent with the invention may determine whether a link to a storage location is assigned to the ID in the first lock object. If the link is not assigned to the ID, the ID may be deleted form the first lock object and a read and/or write access may be performed on the data object.