Difference between revisions of "METHOD"

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(Example)
Line 38: Line 38:
 
<code lang="recital">
 
<code lang="recital">
 
class myclass
 
class myclass
// Define properties
+
    // Define properties
property color as character
+
    property color as character
property size as numeric
+
    property size as numeric
// Define external methods
+
    // Define external methods
method display external
+
    method display external
// Define internal methods
+
    // Define internal methods
method update
+
    method update
....
+
        ....
return
+
    return
 
endclass
 
endclass
  
 
// External method for 'myclass' class
 
// External method for 'myclass' class
 
method myclass::display
 
method myclass::display
parameters whatever
+
    parameters whatever
...
+
    ...
 
return
 
return
 
</code>
 
</code>
 
  
 
==Products==
 
==Products==

Revision as of 00:18, 19 March 2009

METHOD

Class

Applications


Purpose

External method definition for a class


Syntax

METHOD <class-name> :: <method-name>


See Also

CLASS, PARAMETER, RETURN


Description

An object encapsulates methods that perform operations on the object. Encapsulation hides methods within an object, and makes the object into a fully self-contained operational unit. The METHOD command allows you to define an external method outside the CLASS...ENDCLASS construct. This allows for a procedural library of methods, or for each method to be stored in a separate physical file. An external method can have a parameter list defined with the PARAMETER command. The RETURN command should be used to define the end of the external method.


Keyword Description
<class-name> The <class-name> to which the method belongs.
:: The :: operator is used as a separator between the class name and method name.
<method-name> A unique <method-name> of up to 32 characters must be specified. This will be the name used in the METHOD clause in the CLASS...ENDCLASS construct.


Example

class myclass
    // Define properties
    property color as character
    property size as numeric
    // Define external methods
    method display external
    // Define internal methods
    method update
        ....
    return
endclass
 
// External method for 'myclass' class
method myclass::display
    parameters whatever
    ...
return

Products

Recital Database Server, Recital Mirage Server, Recital Terminal Developer