SEO_CLASS_CREATE_COMPLETE
函数模块用于在SAP
系统中创建一个完整的SAP
类。在SAP ABAP
中,类是面向对象编程的基本构建块,它允许开发者将数据和行为组织到一个单一的实体中。SAP
的类通常用于描述业务对象、数据结构和业务逻辑,以实现灵活性和可维护性。
SEO_CLASS_CREATE_COMPLETE
函数模块的主要用途包括:
- 创建类: 通过
SEO_CLASS_CREATE_COMPLETE
,开发者可以在SAP
系统中创建一个新的ABAP
类。这个类可以是一个普通的类,也可以是一个异常类、单例类或接口类。
- 定义属性和方法: 在创建类时,可以使用该函数模块来定义类的属性(成员变量)和方法。属性可以是公共的、受保护的或私有的,方法可以是实例方法或类方法。
- 处理事件: 除了属性和方法,
SAP ABAP
类还可以处理事件。通过SEO_CLASS_CREATE_COMPLETE
,可以为类添加事件处理程序,以响应特定的事件。
- 实现接口:如果一个类需要实现一个或多个接口,
SEO_CLASS_CREATE_COMPLETE
也可以用于为类添加接口的实现。
- 定义继承关系:
SAP ABAP
支持继承关系,允许一个类继承另一个类的属性和方法。通过SEO_CLASS_CREATE_COMPLETE
,可以定义类之间的继承关系。
本文介绍使用下列 ABAP Function Module 生成新的 ABAP 类的方法。
SEO_CLASS_CREATE_COMPLETE
REPORT zdyanmic. DATA ls_vseoclass TYPE vseoclass. DATA ls_imp_if TYPE seor_implementing_r. DATA lt_imp_if TYPE seor_implementings_r. DATA ls_imp_det TYPE seoredef. DATA lt_methods_source TYPE seo_method_source_table. DATA ls_method_source TYPE seo_method_source. DATA lv_method TYPE LINE OF seoo_methods_r. DATA: lv_classname LIKE ls_vseoclass-clsname VALUE 'ZCLJERRY8'. ls_vseoclass-clsname = lv_classname. ls_vseoclass-state = seoc_state_implemented. ls_vseoclass-exposure = seoc_exposure_public. ls_vseoclass-descript = `Dynamic proxy generated by Jerry's code`. ls_vseoclass-langu = sy-langu. ls_vseoclass-clsccincl = abap_true. ls_vseoclass-unicode = abap_true. ls_vseoclass-fixpt = abap_true. ls_vseoclass-clsfinal = abap_true. ls_imp_det = ls_imp_if-clsname = lv_classname. ls_imp_det = ls_imp_if-refclsname = 'IF_HELLOWORLD'. ls_imp_if-state = seoc_state_implemented. APPEND ls_imp_if TO lt_imp_if. CLEAR: ls_method_source. DATA: lv_name TYPE string. ls_method_source-cpdname = 'IF_HELLOWORLD~PRINT'. APPEND ` WRITE:/ 'before Hello World'.` TO ls_method_source-source. APPEND ' mo_origin->print( ).' TO ls_method_source-source. APPEND ` WRITE:/ 'after Hello World'.` TO ls_method_source-source. APPEND ls_method_source TO lt_methods_source. CLEAR: ls_method_source. ls_method_source-cpdname = 'CONSTRUCTOR'. APPEND 'mo_origin = io_origin.' TO ls_method_source-source. APPEND ls_method_source TO lt_methods_source. DATA: lt_implementation TYPE seop_source_string, ls_mtdkey TYPE seocpdkey, cv_implementation TYPE seor_implementings_r, ls_source_code TYPE seo_method_source, lt_methods TYPE seoo_methods_r, lt_parameters TYPE seos_parameters_r, lt_attribute TYPE seoo_attributes_r, ls_attribute LIKE LINE OF lt_attribute, ls_parameter LIKE LINE OF lt_parameters, ls_method LIKE LINE OF lt_methods. ls_method-clsname = lv_classname. ls_method-cmpname = 'CONSTRUCTOR'. ls_method-state = 1. "implemented ls_method-exposure = 2. "public APPEND ls_method TO lt_methods. ls_parameter-clsname = lv_classname. ls_parameter-cmpname = 'CONSTRUCTOR'. ls_parameter-version = 1. ls_parameter-descript = 'Jerry'. ls_parameter-type = 'IF_HELLOWORLD'. ls_parameter-sconame = 'IO_ORIGIN'. ls_parameter-cmptype = 1. "METHOD ls_parameter-mtdtype = 0. "METHOD ls_parameter-pardecltyp = 0. "IMPORTING ls_parameter-parpasstyp = 1. "pass by reference ls_parameter-typtype = 3. "type ref to APPEND ls_parameter TO lt_parameters. ls_attribute-clsname = lv_classname. ls_attribute-cmpname = 'MO_ORIGIN'. ls_attribute-state = 1. ls_attribute-attdecltyp = 0. ls_attribute-attexpvirt = 0. "private ls_attribute-typtype = 3. "type ref to ls_attribute-type = 'IF_HELLOWORLD'. APPEND ls_attribute TO lt_attribute. CALL FUNCTION 'SEO_CLASS_CREATE_COMPLETE' EXPORTING devclass = '$TMP' version = seoc_version_active authority_check = abap_true overwrite = abap_true suppress_method_generation = abap_false genflag = abap_false method_sources = lt_methods_source suppress_dialog = abap_true CHANGING class = ls_vseoclass methods = lt_methods parameters = lt_parameters implementings = lt_imp_if attributes = lt_attribute EXCEPTIONS existing = 1 is_interface = 2 db_error = 3 component_error = 4 no_access = 5 other = 6 OTHERS = 7. WRITE: / sy-subrc.