I have been working on shared memory objects, Used it many times to share flat structures.
This time I wanted to share objects(runtime) of a z-class using shared memory.
getting "The exception 'CX_SHM_EXTERNAL_REFERENCE' was raised, but it was not caught anywhere along" when detaching after "attach_for_write( ).".
Below is what I am trying to do.
DATA lr_handle TYPE REF TO ZCL_TEST_SHARED_MEM_AREA. " Area Class DATA lr_root TYPE REF TO ZCL_TEST_SHARED_MEM_ROOT. " Root attribute of handle class. SHM: Model of a Data Clas ****************************************************** * First Try to Read data excp type ref to cx_shm_no_active_version. data lf_readerror type c1. try. lr_handle = ZCL_TEST_SHARED_MEM_AREA=>attach_for_read( ). lr_handle->root->get_object( IMPORTING e_grid = gv_docking ). lr_handle->detach( ). catch cx_shm_no_active_version into excp. lf_readerror = 'X'. endtry. ****************************************************** IF lf_readerror = 'X'. lr_handle = ZCL_TEST_SHARED_MEM_AREA=>attach_for_write( ). ELSE. lr_handle = ZCL_TEST_SHARED_MEM_AREA=>attach_for_update( ). ENDIF. CREATE OBJECT lr_root AREA HANDLE lr_handle. lr_handle->set_root( lr_root ). CREATE OBJECT gv_docking. " this may be any object of my intrest lr_root->set_object( EXPORTING p_grid = gv_docking ). " a mehtod in root class to save my object to SM lr_handle->detach_commit( ).
Is it even possible to share class objects using shared memory.!