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Expansion format, Generation rules, Generation example – FUJITSU J Adapter Class Generator User Manual

Page 66

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66 Chapter 5. Adapter Class Reference

Expansion format

CLASS-ID. internal-class-1 AS "external-class-name" INHERITS internal-
class-name-2.
...
FACTORY.
...
<>
END FACTORY.
OBJECT.
...
<>
<>
<>
END OBJECT.
END CLASS internal-class-name-1.

Generation rules
1. Internal class names 1 and 2 are internally used by the J adapter class generator

and are not viewed from the class user.

2. The external class name is used to identify the class. The class user can identify

the class with the external class name.

3. An external class name is generated according to the following rules:

JA-NumberOfDimensions-ElementTypeName

-

"JA-" is followed by the number of dimensions (1 to 9) and element type

name with a hyphen "-" inserted in between them.

-

An element type name is generated depending on the type in the following

format:

-

Object: External class name of the adapter class corresponding to the Java

class (See "

Class and interface

.")

-

Basic type: Java keyword representing a type (boolean, byte, char, short,

int, long, float, or double)

-

An external class name exceeding 160 characters is truncated after the

160th character.

4. The following methods are generated in the factory or method definition:

Method name

Type

Function

NEW-ARRAY

Factory

Generates an array object.

GET-ARRAY-LENGTH Object Obtains

the

number of elements of an array.

GET-ARRAY-ELEMENT

Object

Fetches a value from an array element.

SET-ARRAY-ELEMENT

Object

Sets a value in an array element.


5. An n-dimensional array is handled as a one-dimensional array having an n-1-

dimensional array as an element. Therefore, for n-dimensional array, n adapter

classes (JA-n-XYZ, JA-(n-1)-XYZ, ..., JA-1-XYZ) are generated. JA-n-XYZ is a

one-dimensional array having JA-(n-1)-XYZ as an element.

Generation example
The adapter class for java.lang.String[] is generated as shown below: