topic Re: Constructor Signature in Application Development and Automation Discussions

Constructor Signature

ammad_zaman — Thu, 12 Mar 2009 13:55:31 GMT

i have just solved an example for method and i m reading the constructor ... the issue is i have read that the "Constructor's signature cannot have importing parameters or exception " where as in almost all examples i saw importing parameter passed by constructors.

kindly help me to remove my confusion

Regards

Ammad

Re: Constructor Signature

Former Member — Thu, 12 Mar 2009 14:08:17 GMT

Constructors can only have Importing and Execptions.

They are special methods that is called at runtime as soon as object has been generated in the memory.

Ex:

Calss <name> Definition.

Method Constructor
 Importing
 parameter type <type>
Execptions
 Execption.
Endclass.

[Refer|https://www.sdn.sap.com/irj/scn/wiki?path=/display/snippets/abap%252bobjects%252b-%252bcreating%252byour%252bfirst%252blocal%252bclass%252b-%252busing%252binstance%252bconstructor]

Regards,

Gurpreet

Re: Constructor Signature

former_member376453 — Thu, 12 Mar 2009 14:11:11 GMT

This message was moderated.

Re: Constructor Signature

MarcinPciak — Thu, 12 Mar 2009 15:33:15 GMT

Hi Ammad,

You probably missread something. What you say is oposite to the truth.

Instance contructor (so the one which is called an object of the class is created) can have only IMPORTING parameters and EXCEPTIONS (but doesn't have to). No EXPORTING and RETURNIG ones are possible though.

On contrary, class contructor (created only once when first object of class is created) cannot have any of the parameters (no interface to it is allowed).

Hope this claryfies your confusion.

Regards

Marcin

Re: Constructor Signature

Former Member — Fri, 13 Mar 2009 05:04:00 GMT

Hi:

have a look

[Constructor|http://help.sap.com/saphelp_erp2004/helpdata/EN/08/d27c03b81011d194f60000e8353423/content.htm]

Regards

Shashi

Re: Constructor Signature

Former Member — Fri, 13 Mar 2009 05:36:19 GMT

Hi,

Constructors only have importing and exceptions signatures