topic Re: Invoke a method dynamically in Application Development and Automation Discussions

Invoke a method dynamically

raghavendra_subhash — Thu, 01 Feb 2007 05:06:08 GMT

Hi,

I want to invoke a method dynamically. I have the class name and method name in a variable and the list of import and export parameter for this method in an internal table. Now I need to invoke this method dynamically i.e. without having it to call in code like this classname->methodname(.....). I want something like reflection in java, where we can call the method using invoke method of method class ex:

try {

Method method = cls.getMethod( "setColor",

new Class[] {Color.class} );

method.invoke( obj, new Object[] );

}

It would be helpful if you can provide a simple example on how it can be implemented in ABAP.

Thanks,

Raghavendra

Re: Invoke a method dynamically

seshatalpasai_madala — Thu, 01 Feb 2007 05:18:58 GMT

Hi,

You can perform calls in that way as follows.

You need to pass the parameters usingthe following table of type ABAP_PARAMBIND_TAB.

DATA: ptab type ABAP_PARAMBIND_TAB,

ptab_line like line of ptab.

DATA: clas_name type stirng VALUE 'CLASS_NAME',

method_name type string VALUE 'METHOD_NAME'.

DATA: obj type ref to OBJECT.

create object obj type class_name.

ptab_line-name = 'PARAM_NAME'.

ptab_line-kind = CL_ABAP_OBJECTDESCR=>EXPORTING.

Then you can use

CALL METHOD obj->(method_name) PARAMETER-TABLE ptab.

Regards,

Sesh

Re: Invoke a method dynamically

Former Member — Fri, 15 Feb 2008 17:32:08 GMT

Hi Sesh,

I'm on SAP 4.7 and there isn't any type ABAP_PARAMBIND_TAB. Can you please describe how it is declare in order to recreate it here.

thanks in advanced,

Eric