{"id":1066,"date":"2014-09-26T10:17:16","date_gmt":"2014-09-26T09:17:16","guid":{"rendered":"http:\/\/oprsteny.cz\/?p=1066"},"modified":"2014-09-26T11:26:32","modified_gmt":"2014-09-26T10:26:32","slug":"abap-multiple-implementations-of-a-signle-implementation-only-badi","status":"publish","type":"post","link":"https:\/\/oprsteny.cz\/?p=1066","title":{"rendered":"ABAP – Multiple implementations of a “Single implementation only BAdI”"},"content":{"rendered":"

\"SAP\"It is a problem when you need to have multiple implementations of a BAdI which does not implicitly allow multiple implementations by its definition. How to bypass this limitation? I’ll show sample solution on an SRM BAdI called BBP_CREATE_BE_PO_NEW.<\/p>\n

1. Check BAdI specification<\/h2>\n

In SE18 open BAdI BBP_CREATE_BE_PO_NEW and check that checkbox “Multiple use” is not selected. This means the BAdI can have only ONE active implementation.<\/p>\n

\"BAdI<\/a><\/p>\n

2. Create the real BAdI implementation and implementation class<\/h2>\n

Create single BAdI implementation ZBBP_CREATE_BE_PO_NEW with its implementation class called ZCL_IM_BBP_CREAT_BE_PO_NEW<\/p>\n

\"BAdI<\/a><\/p>\n

3. Create supporting Z-structure<\/h2>\n

Create Z-structure\u00a0ZBBP_BE_PO_TRANSFER_PROVIDER containing just one field with type of the BAdI Interface IF_EX_BBP_CREATE_BE_PO_NEW<\/p>\n

\"Supporting<\/a><\/p>\n

4. Implementation class container for pseudo-implementations<\/h2>\n

In the implementation class create private attribute – internal table MT_BE_PO_TRANSFER of the Z-structure ZBBP_BE_PO_TRANSFER_PROVIDER<\/p>\n

\"Class<\/a><\/p>\n

5. Create pseudo-implementations<\/em><\/h2>\n

Create new Z-classes – one Z-class per each of your required psuedo-implementations<\/em>. In each class, add the same interface as used in the main implementation class into the Interfaces<\/em> tab. In our case we created Z-class ZCL_BBP_CREAT_BE_PO_DELV_ADDR which will handle delivery address manipulation.<\/p>\n

\"Pseudo-implementation<\/a><\/p>\n

6. Implement class constructor and register pseudo-implementations<\/em><\/h2>\n

Create main implementation class constructor and add programatically as many entries in the class attribute (itab) as you need – one for each Z-class, each with type of the specific Z-class<\/p>\n

\"Registering<\/a><\/p>\n

7. Distribute the interface method calls to pseudo-implementation’s methods<\/h2>\n

In all interface methods of the main implementation class loop over your class attribute (itab) and call the same method with the same parameters for each line.<\/p>\n

\"Distributing<\/a><\/p>\n

8. Implement interface methods in your pseudo-implementations<\/h2>\n

In each of your Z-classes implement the necessary interface methods. Each Z-class interface method will now handle just the part of data manipulation that is required.<\/p>\n

\"Pseudo-implementation<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

It is a problem when you need to have multiple implementations of a BAdI which does not implicitly allow multiple implementations by its definition. How to bypass this limitation?<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"ABAP - Multiple implementations of a \"Signle implementation only BAdI\"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[16,233,4,9],"tags":[446,57,324,221,325,326],"class_list":["post-1066","post","type-post","status-publish","format-standard","hentry","category-abap","category-customizing","category-design-patterns","category-development","tag-abap","tag-badi","tag-implementation-class","tag-oo-abap","tag-se18","tag-se19"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p3nYbe-hc","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/oprsteny.cz\/index.php?rest_route=\/wp\/v2\/posts\/1066","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oprsteny.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oprsteny.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oprsteny.cz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/oprsteny.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1066"}],"version-history":[{"count":3,"href":"https:\/\/oprsteny.cz\/index.php?rest_route=\/wp\/v2\/posts\/1066\/revisions"}],"predecessor-version":[{"id":1077,"href":"https:\/\/oprsteny.cz\/index.php?rest_route=\/wp\/v2\/posts\/1066\/revisions\/1077"}],"wp:attachment":[{"href":"https:\/\/oprsteny.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1066"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oprsteny.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1066"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oprsteny.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1066"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}