US 6,856,998 B2 · Program for generating method retrieval information and an arithmetic processing apparatus

Abstract

Method and class tables and an algorithm are provided for use in determining if a called method in a message should be retrieved and executed or a method search should initiated. The method table includes method name, method identifier, method overwrite data, class overwrite data and method memory storage location associated with the method related to the overwrite data. The algorithm sets a plurality of variables to an entry in the class table and at least one method and class data referenced in a message, searches the method table and sets search variables to the class and method overwrite data and determines if a predetermined relationship exists between the method and class identifier associated with the class and method data in the message as well as data in one of method entries. The method memory storage location is read out once a method entry with the predetermined relationship is found.

Claims13

Dependent claims

A computer implemented method for generating method retrieval information for a predetermined method succeeded by a plurality of classes having a hierarchical relationship, comprising the steps of:

storing a predetermined method in a computer readable medium;
setting information specifying a stored location for said predetermined method and a method overwriting said predetermined method;
generating retrieval information where each of said setting information is connected one after another based on a hierarchical relationship between position classes of the respective methods;
and
specifying the storage location of the method to be called by retrieving said retrieval information when a call message is applied to a program executing means,
wherein said setting information is stored in a first and second data structure, said first data structure comprises a plurality of class data related to one or more of said plurality of classes, said second data structure comprises a plurality of method table data for methods that extend a higher level class by inheritance with another method.

3 more elements

An arithmetic processing apparatus comprising:

a memory storing retrieval information to retrieve a stored location of a method called by each of a plurality of classes having a hierarchical relationship generated by said object to oriented program, and
retrieval means for specifying the stored location of the method to be called by retrieving said retrieval information when a call message is applied to said program executing means,
said retrieval information including the information connected with the information specifying a stored location of a method and the method overwriting said method for each kind of methods based on a hierarchical relationship between position classes of the respective methods, wherein said hierarchical relationship between position classes is based on a relationship between said plurality of classes comprising higher level classes and lower level classes that are related to one or more said higher level classes based on inheritance, and
wherein said stored location of a method is stored for a plurality of methods comprising methods associated with one of said higher level classes having a method and methods associated with one of said lower level lasses comprising, a method and processing sequences inherited from one of said higher level classes.

1 more element

Dependencies are inferred from the claim text.

Program for generating method retrieval information and an arithmetic processing apparatus

Life of this patent

Program for generating method retrieval information and an arithmetic processing apparatus

Life of this patent

Abstract

Claims13