Data operating device for providing schema with freedom in data operation of object-oriented database
AssigneeFujitsu Limited
InventorHideatsu Hosokai
Life of this patent
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Abstract
Definition information for defining a tuple with an unspecific schema in the superclass of all the tuple type classes of a hierarchical class structure is stored in the definition information storage unit of a data operating device for operating on the data of an object-oriented database. If a tuple variable is declared using the tuple defined based on this definition information, an assignment unit assigns a tuple with an arbitrary schema to the tuple variable.
Claims18
A computer-readable storage medium for recording a program for enabling a computer to execute a data operation of an object-oriented database, the process comprising:
- storing definition information for defining a tuple with an unspecific schema in a storage unit of the computer;
- and
- assigning a tuple with an arbitrary schema to a tuple variable declared using the tuple defined based on the definition information.
A computer-readable storage medium for recording a program for enabling a computer to execute a data operation of an object-oriented database, the process comprising:
- storing definition information for defining a tuple with an unspecific schema in a storage unit of the computer;
- and
- using a tuple with an arbitrary schema for a return value of a method when the method uses a tuple defined based on the definition information for the return value.
A data operating device for operating on data of an object-oriented database, comprising:
- a definition information storage unit storing definition information for defining a tuple with an unspecific schema;
- and
- an assignment unit assigning a tuple with an arbitrary schema to a variable when the variable is declared using the tuple defined based on the definition information.
A data operating method for operating on data of an object-oriented database, comprising:
- storing definition information for defining a tuple with an unspecific schema in a storage unit;
- and
- assigning a tuple with an arbitrary schema to a tuple variable declared using the tuple defined based on the definition information.
A data operating method for operating on data of an object-oriented database, comprising:
- storing definition information for defining a tuple with an unspecific schema in a storage unit of the computer;
- and
- using a tuple with an arbitrary schema for a return value of a method when the method uses a tuple defined based on the definition information for the return value.
A computer data signal embodied in a carrier wave, for representing a program for enabling a computer to execute a data operation of an object-oriented database, the process comprising:
- storing definition information for defining a tuple with an unspecific schema in a storage unit of the computer;
- and
- assigning a tuple with an arbitrary schema to a tuple variable declared using the tuple defined based on the definition information.
Dependencies are inferred from the claim text.