
Natural for UNIX	Version 8.3.7 for UNIX	SEARCH CONTENTS \| PDF BOOKS \| HOME UP PREV NEXT

— Statements —

CREATE OBJECT

`CREATE OBJECT` `operand1` `OF` [`CLASS`] `operand2`
[`GIVING` `operand3`]

This document covers the following topics:

Function
Syntax Description

For an explanation of the symbols used in the syntax diagram, see Syntax Symbols.

Related Statements: DEFINE CLASS | INTERFACE | METHOD | PROPERTY | SEND METHOD

Belongs to Function Group: Component Based Programming

Function

The CREATE OBJECT statement is used to create an instance of a class.

Syntax Description

Operand Definition Table:

Operand	Possible Structure			Possible Formats			Referencing Permitted	Dynamic Definition
`operand1`		S				O	no	no
`operand2`	C	S		A			yes	no
`operand3`		S	N		I		yes	no

Syntax Element Description:

Syntax Element Description

Syntax Element	Description
`operand1`	Object Handle: `operand1` must be defined as an object handle (`HANDLE OF OBJECT`). The object handle is filled when the object is successfully created. When not successfully returned, `operand1` contains the value `NULL-HANDLE`.
`OF CLASS operand2`	Class-Name: `operand2` is the name of the class of which the object is to be created. For classes that are not registered as DCOM classes, it must contain the class name defined in the `DEFINE CLASS` statement. For classes that are registered as DCOM classes, it must contain either the `ProgID` of the class or the class GUID. For Natural classes that are registered as DCOM classes, the `ProgID` corresponds to the class name specified in the `DEFINE CLASS` statement. CREATE OBJECT #O1 OF CLASS "Employee" or CREATE OBJECT #O1 OF CLASS "653BCFE0-84DA-11D0-BEB3-10005A66D231"
`GIVING operand3`	GIVING Clause: If this clause is specified, `operand3` contains either the Natural message number if an error occurred, or zero on success. If this clause is not specified, Natural run time error processing is triggered if an error occurs.

operand1

Object Handle:

operand1 must be defined as an object handle (HANDLE OF OBJECT). The object handle is filled when the object is successfully created. When not successfully returned, operand1 contains the value NULL-HANDLE.

OF CLASS
                      operand2

Class-Name:

operand2 is the name of the class of which the object is to be created. For classes that are not registered as DCOM classes, it must contain the class name defined in the DEFINE CLASS statement. For classes that are registered as DCOM classes, it must contain either the ProgID of the class or the class GUID. For Natural classes that are registered as DCOM classes, the ProgID corresponds to the class name specified in the DEFINE CLASS statement.

CREATE OBJECT #O1 OF CLASS "Employee" or
CREATE OBJECT #O1 OF CLASS "653BCFE0-84DA-11D0-BEB3-10005A66D231"

GIVING
                      operand3

GIVING Clause:

If this clause is specified, operand3 contains either the Natural message number if an error occurred, or zero on success.

If this clause is not specified, Natural run time error processing is triggered if an error occurs.

SEARCH CONTENTS | PDF BOOKS | HOME UP PREV NEXT