ABAP OO: methods as method params, method chains

Hello all,
I am currently developing quite much ABAP OO and wonder if this is possible, because I got compilation errors.
a) Methods as method params w/o temp vars:
I have a method whose parameter shall be the return value (let s say a string) shall be the parameter:
document->set_owner( owner = person->get_name( ) ).
This throws an error and I have to code this instead
data: owner type String.
ownerString = person->get_owner( ).
document->set_owner( owner = ownerString ).
... so I have always a temp variable which is getting MUCH overhead when having such stuff often...
Am I doing wrong or is this impossible in ABAP OO? ...am used to do such things in all other languages I know... mean, that methods can be params of other methods.
b) "chaining of methods"
Is this possible somehow?:
data: tmp type String.
tmp = employee->get_orgUnit( )->get_name( ).
Calling one level (the get_OrgUnit() method) works fine, but an immediate call to the second level ( get_name() method) fails and I have to code this:
data: tmp type String,
orgUnit type ZOrgUnit.
orgUnit = employee->get_orgUnit( ).
tmp = orgUnit->get_name( ).
This also very annoying to have so much temporary help variables on the way.
Is there any help for me?
Thank you for any hints and reagrds,
Timo

Hi Timo,
as Richard's reply says it's impossible in ABAP-OO. The nature of this language is ABAP not OO
Only helpful for you, could be the returning parameter. It's very useful in conditional expressions like
if m1->a() = '2'.
A preferred parameter to avoid writing parameter names like
m1->b( '2' ).
All other useful stuff of method or parameter chaining, and so on is NOT possible. Sorry.

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ec
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ABAP OO: methods as method params, method chains

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