Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Reexamination Certificate
2001-01-22
2004-06-29
Bayerl, Raymond J. (Department: 2173)
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
C345S960000, C345S215000, C345S215000, C717S113000, C717S105000, C717S165000, C719S315000
Reexamination Certificate
active
06757000
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an object-oriented programming apparatus for performing object-oriented programming, an object-oriented programming supporting apparatus for supporting an object-oriented programming, a component builder apparatus for building components forming a part of an object, an object-oriented program storage medium for storing therein object-oriented programs, a program storage medium for use in an object-oriented programming, the program storage medium being adapted for storing therein a program to support an object-oriented programming, a component storage medium for storing therein components, and an object-between-network display method of visually displaying in the form of a network of objects data integration due to data sharing, integration of control flows among objects, and the like, on a plurality of objects produced by object-oriented programming.
2. Description of the Related Art
Hitherto, when a program, which is incorporated into a computer so as to be operated, is described, a programming is performed in such a manner that a function name (command) and a variable are described in turn. In case of such a programming scheme, since there is a need to describe the programming with the commands in its entirety, it is necessary for a programmer to investigate the commands one by one through a manual, or to remember a lot of commands. However, those commands are different for each program language. Accordingly, even if a programmer remembers a lot of commands of a certain program language, when the programmer describes a program with another program language, there occurs such an inconvenience that the programmer has to do over again learning the commands of the program language. Further, formats of programs are also different for each program language. These matters make a description of the program difficult, and give such an impression that a development of programs is a special field which is deemed that it is difficult for a nonprofessional to enter thereinto. Recently, programs are increasingly large-scaled and complicated, and thus there is emphasized more and more a necessity that a development of programs is made easier, and also a necessity for contributing to a reuse of the once developed programs.
In such a technical background, recently, object-oriented programming has been widely adopted. An object is a named entity that combines a data structure with its associated operations. That is, the object comprises “data” and “its associated operations”. The term “object-oriented” implies a concept that the “data” and “its associated operations”, that is, the object, is treated in the form of units. Also in such an object-oriented programming, there is a need to essentially build each individual software (object). After the individual objects are once built, however, a programming is completed in such a manner that a coupling relation of object-to-object is described such that a certain object calls another object. It is expected that this concept of object-oriented programming serves to significantly improve operability of large-scaled and complicated software, the creation of such software, and the maintenance thereof.
In object-oriented programming, an operation in which a certain object calls another object uses concepts of messages and methods such that the calling object issues a message to the called party of the object, while the called party of the object receives the issued message and executes its associated methods (operations). Hitherto, data necessary for a process was provided in the form of arguments of the messages.
One of the objects of object-oriented programming resides in the point that software (object) once made up can be reused even if the system is altered. In order to implement this, there is a need to make up a relatively small and simple object.
In general, however, it is said that all object-oriented program is low in its execution rate because it takes a lot of time to recognize a corresponding relation between the received message and its associated method, and also it takes a lot of time to transfer data from an object, which issues the message, to an object which executes the method.
In order to improve the program execution rate, hitherto, there was adopted a technique in which operations in one object are increased to reduce opportunities of issuing messages directed to another object. In this case, however, the operations in one object becomes complicated, and the object is scaled up. This technique is contrary to the desire for reusable objects, and thus, it is one of the causes of prohibiting the possibility of promoting reuse of the software in object-oriented programming.
When the object-oriented programs are promoted, the serious problem is involved in handling of a large amount of software accumulated up to now, which is not based on a an object-oriented concept. The object-oriented programming technology according to the earlier development has been associated with such a problem that the possibility of promoting reuse of the existing software is extremely low.
SUMMARY OF THE INVENTION
In view of the above-mentioned problem, it is therefore an object of the present invention to provide an object-oriented programming apparatus having a function of coupling a plurality of objects with one another so that information efficiently flows among the plurality of objects, an object-oriented program storage medium for storing therein a plurality of objects and object-coupling programs for coupling the plurality of objects with one another so that information efficiently flows among the plurality of objects, an object-oriented programming supporting apparatus which contributes to facilitation of an object-oriented programming for defining a coupling relation between objects, a program storage medium for use in an object-oriented programming, the program storage medium being adapted for storing therein a program to support an object-oriented programming, a component builder apparatus having a function of building a component which serves as an object in combination with an existing software so that the existing software can be dealt with as the object, a component storage medium for storing therein components as mentioned above, and an object-between-network display method of visually displaying in the form of a network of objects a data integration due to a data sharing, an integration of control flows among objects and the like, on a plurality of objects produced by the object-oriented programming, the object-between-network display method being suitable for performing an object-oriented programming for defining a coupling relation between objects.
To attain the above-mentioned object, according to the present invention, there is provided a first object-oriented programming apparatus for interconnecting a plurality of objects each having data and operations, said object-oriented programming apparatus comprising:
instruction coupling means for permitting a transfer of messages between a first object having an output instruction bus portion for performing a processing for an issue of messages directed to another object and a second object having an input instruction bus portion responsive to messages issued by another object and directed to self object for activating a method of self object associated with the received message, by means of providing such a correspondence that the message of the first object is associated with the method of the second object;
data element list generating means for generating a data element list, in which pointers to data storage areas for storing data are arranged, of an object;
pointer element list generating means for generating pointer element list, in which pointers to pointer storage areas for storing pointers to data are arranged, of an object; and
data coupling means for permitting a transfer of data between a third object having the data element list and a fourth object having the pointer element list, by means of
Maruyama Tsuguto
Nagashima Fumio
Sasaki Shigeru
Suda Ryousuke
Suzuki Kaori
Bayerl Raymond J.
Fujitsu Limited
Staas & Halsey , LLP
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