Electronic data structure for controlling access to data objects using locks

A computer system for processing data and preventing access to a data object having an identifier (ID), comprising:

• memory means having program instructions;
• input means for entering data;
• storage means for storing data;
• a processor responsive to the program instructions and
• a data structure comprising:
• 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, wherein
• 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, wherein
• 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, and wherein
• the lock object is 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.

A computer readable medium comprising instructions for creating a data structure for preventing access, in a computer system, to a data object having an identifier (ID), comprising:

• 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, wherein
• 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, wherein
• 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, and wherein
• the lock object is 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.