Method and apparatus for converting legacy programming language data structures to schema definitions
First Claim
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1. A tangible computer storage medium having computer program instructions encoded thereon for generating a schema definition, comprising:
- instructions for identifying a plurality of identified data structures by scanning a source code stored in a computer readable storage medium, wherein the source code is written in a legacy computer language;
instructions for selecting a nested data structure from the plurality of identified data structures;
instructions for receiving a language-specific metamodel generated from the nested data structure definition written in the legacy computer language;
instructions for naming and defining a first complex type schema element for the nested data structure, wherein naming and defining comprises setting a content model of the first complex type schema element to sequence;
instructions for creating the schema definition by walking through the metamodel to examine each node in a plurality of nodes of the language-specific metamodel, and for each node, creating a respective schema element according to a predefined mapped relationship, wherein creating the schema definition further comprises populating a schema tree;
instructions for receiving nodes, inspecting content of the nodes, and generating a corresponding part of a schema definition according to a predefined mapped relationship to produce a schema definition for the nested data structure; and
instructions for serializing the schema tree after it is populated.
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Abstract
A method and apparatus for creating a schema definition from a language-specific metamodel of a data structure written in a legacy computer language involves walking through the nodes of the metamodel, and creating corresponding schema element objects in a schema tree that is serialized to create the schema definition. The creation of the schema element objects follows rules, and permits the definition of nested data structures having conjunctive-type and disjunctive-type membership.
73 Citations
14 Claims
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1. A tangible computer storage medium having computer program instructions encoded thereon for generating a schema definition, comprising:
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instructions for identifying a plurality of identified data structures by scanning a source code stored in a computer readable storage medium, wherein the source code is written in a legacy computer language; instructions for selecting a nested data structure from the plurality of identified data structures; instructions for receiving a language-specific metamodel generated from the nested data structure definition written in the legacy computer language; instructions for naming and defining a first complex type schema element for the nested data structure, wherein naming and defining comprises setting a content model of the first complex type schema element to sequence; instructions for creating the schema definition by walking through the metamodel to examine each node in a plurality of nodes of the language-specific metamodel, and for each node, creating a respective schema element according to a predefined mapped relationship, wherein creating the schema definition further comprises populating a schema tree; instructions for receiving nodes, inspecting content of the nodes, and generating a corresponding part of a schema definition according to a predefined mapped relationship to produce a schema definition for the nested data structure; and instructions for serializing the schema tree after it is populated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification