Acessing component controller in GETTER method

How can we user comopnent controller in GETTER methid?

METHOD get_bp_number.

  CALL METHOD super->get_bp_number

    EXPORTING

      attribute_path = attribute_path

      iterator       = iterator

    RECEIVING

      value          = value.

  DATA : lo_comp_controller TYPE REF TO zl_iccmp_bp_bspwdcompon12_impl,

        comp_controller TYPE REF TO cl_bsp_wd_controller.

*  lo_comp_controller ?= lo_comp_controller->create_controller( ).

  lo_comp_controller ?= comp_controller.

  lo_comp_controller->lv_bp = value.

ENDMETHOD.

but I  am getting nothing in lo_comp_controller as a result I am getting exception.

Please help me to use component controller in GETTER method .

Thanks & Regards,

Akhilesh Bhagat.