refactor abap style and improve readability

package.json

@@ -19,14 +19,14 @@
   },
   "homepage": "https://github.com/abap2UI5/samples#readme",
   "devDependencies": {
-    "@abaplint/cli": "^2.115.1",
+    "@abaplint/cli": "^2.119.2",
     "@abaplint/database-sqlite": "^2.11.78",
-    "@abaplint/runtime": "^2.12.22",
-    "@abaplint/transpiler-cli": "^2.12.22",
-    "@types/node": "^25.0.1",
+    "@abaplint/runtime": "^2.13.15",
+    "@abaplint/transpiler-cli": "^2.13.15",
+    "@types/node": "^25.6.0",
     "buffer": "^6.0.3"
   },
   "dependencies": {
-    "npm-check-updates": "^18.3.1"
+    "npm-check-updates": "^21.0.3"
   }
 }

src/00/z2ui5_cl_demo_app_s_01.clas.abap

@@ -1,24 +1,19 @@
-CLASS z2ui5_cl_demo_app_s_01 DEFINITION
-  PUBLIC
-  CREATE PUBLIC .
+CLASS z2ui5_cl_demo_app_s_01 DEFINITION PUBLIC.
 
   PUBLIC SECTION.
+    INTERFACES z2ui5_if_app.
 
-    INTERFACES z2ui5_if_app .
-
-    DATA lock_counter TYPE i READ-ONLY .
-    DATA session_is_stateful TYPE abap_bool READ-ONLY .
-    DATA session_text TYPE string READ-ONLY .
-    DATA lock_text TYPE string READ-ONLY .
+    DATA lock_counter TYPE i READ-ONLY.
+    DATA session_is_stateful TYPE abap_bool READ-ONLY.
+    DATA session_text TYPE string READ-ONLY.
+    DATA lock_text TYPE string READ-ONLY.
     DATA:
       BEGIN OF error READ-ONLY,
         text TYPE string,
         flag TYPE abap_bool,
       END OF error.
 
   PROTECTED SECTION.
-  PRIVATE SECTION.
-
     METHODS initialize_view
       IMPORTING
         client TYPE REF TO z2ui5_if_client.
@@ -34,108 +29,117 @@ CLASS z2ui5_cl_demo_app_s_01 DEFINITION
 
     METHODS update_lock_counter.
 
+  PRIVATE SECTION.
 ENDCLASS.
 
 
-
 CLASS z2ui5_cl_demo_app_s_01 IMPLEMENTATION.
 
   METHOD initialize_view.
+
     set_session_stateful( client   = client
                           stateful = abap_true ).
 
     DATA(view) = z2ui5_cl_xml_view=>factory( ).
 
     DATA(page) = view->shell( )->page(
       title          = `abap2UI5 - Sample: Sticky Session with locks - (ABAP Standard Only)`
-      navbuttonpress = client->_event( 'BACK' )
+      navbuttonpress = client->_event( `BACK` )
       shownavbutton  = client->check_app_prev_stack( ) ).
 
     page->message_strip(
         text    = client->_bind( error-text )
-        type    = 'Error'
+        type    = `Error`
         visible = client->_bind( error-flag ) ).
 
     DATA(vbox) = page->vbox( ).
 
-    DATA(hbox) = vbox->hbox( alignitems = 'Center' ).
+    DATA(hbox) = vbox->hbox( alignitems = `Center` ).
 
     hbox->info_label( text = client->_bind( session_text ) ).
 
     hbox->button(
-      text  = 'End session'
-      press = client->_event( 'END_SESSION' ) ).
+      text  = `End session`
+      press = client->_event( `END_SESSION` ) ).
 
     hbox->button(
-      text  = 'Start session again'
-      press = client->_event( 'START_SESSION' ) ).
+      text  = `Start session again`
+      press = client->_event( `START_SESSION` ) ).
 
-    hbox = vbox->hbox( alignitems = 'Center' ).
-    hbox->label( text  = 'press button to create lock entry (SM12) in backend session'
-                 class = 'sapUiTinyMarginEnd' ).
+    hbox = vbox->hbox( alignitems = `Center` ).
+    hbox->label( text  = `press button to create lock entry (SM12) in backend session`
+                 class = `sapUiTinyMarginEnd` ).
     hbox->button(
-      text  = 'Lock'
-      press = client->_event( 'LOCK' )
-      type  = 'Emphasized' ).
+      text  = `Lock`
+      press = client->_event( `LOCK` )
+      type  = `Emphasized` ).
 
     hbox = vbox->hbox( ).
 
     hbox->button(
-      text  = 'Refresh lock counter'
-      press = client->_event( 'REFRESH' ) ).
+      text  = `Refresh lock counter`
+      press = client->_event( `REFRESH` ) ).
 
     hbox->button(
-      text  = 'Rollback Work'
-      press = client->_event( 'ROLLBACK' ) ).
+      text  = `Rollback Work`
+      press = client->_event( `ROLLBACK` ) ).
 
     vbox->hbox( )->info_label( client->_bind( lock_text ) ).
 
     client->view_display( view->stringify( ) ).
+
   ENDMETHOD.
 
 
   METHOD on_event.
+
     CASE client->get( )-event.
-      WHEN 'BACK'.
+      WHEN `BACK`.
         set_session_stateful( client   = client
                               stateful = abap_false ).
         client->nav_app_leave( ).
-      WHEN 'LOCK'.
+      WHEN `LOCK`.
         lcl_locking=>acquire_lock( ).
         client->message_toast_display( `Lock acquired. Press 'Refresh lock counter'` ).
         client->view_model_update( ).
-      WHEN 'END_SESSION'.
+      WHEN `END_SESSION`.
         set_session_stateful( client   = client
                               stateful = abap_false ).
-      WHEN 'START_SESSION'.
+      WHEN `START_SESSION`.
         set_session_stateful( client   = client
                               stateful = abap_true ).
-      WHEN 'REFRESH'.
+      WHEN `REFRESH`.
         update_lock_counter( ).
         client->view_model_update( ).
-      WHEN 'ROLLBACK'.
+      WHEN `ROLLBACK`.
         ROLLBACK WORK.
         client->message_toast_display( |ROLLBACK WORK done, { lock_counter } locks released. Press 'Refresh lock counter'| ).
     ENDCASE.
+
   ENDMETHOD.
 
 
   METHOD set_session_stateful.
+
     client->set_session_stateful( stateful ).
     session_is_stateful = stateful.
+
     IF stateful = abap_true.
-      session_text = 'Session ON (stateful)'.
+      session_text = `Session ON (stateful)`.
+
     ELSE.
-      session_text = 'Session OFF (stateless)'.
+      session_text = `Session OFF (stateless)`.
     ENDIF.
     client->view_model_update( ).
+
   ENDMETHOD.
 
 
   METHOD z2ui5_if_app~main.
+
     TRY.
 
-        CLEAR error.
+        error = VALUE #( ).
 
         IF client->check_on_init( ).
           update_lock_counter( ).
@@ -153,6 +157,7 @@ CLASS z2ui5_cl_demo_app_s_01 IMPLEMENTATION.
       CATCH cx_root INTO DATA(lx).
         client->message_box_display( lx->get_text( ) ).
     ENDTRY.
+
   ENDMETHOD.
 
 
@@ -164,4 +169,3 @@ CLASS z2ui5_cl_demo_app_s_01 IMPLEMENTATION.
   ENDMETHOD.
 
 ENDCLASS.
-

src/00/z2ui5_cl_demo_app_s_01.clas.locals_imp.abap

@@ -1,4 +1,4 @@
-CLASS lcl_locking DEFINITION CREATE PRIVATE FINAL.
+CLASS lcl_locking DEFINITION CREATE PRIVATE.
   PUBLIC SECTION.
 
     TYPES: