#14088 `Set to NULL` action for complex object editor

plugins/org.jkiss.dbeaver.ui.editors.data/src/org/jkiss/dbeaver/ui/data/dialogs/ComplexObjectEditor.java

@@ -62,6 +62,7 @@ import org.jkiss.dbeaver.ui.UIUtils;
 import org.jkiss.dbeaver.ui.controls.resultset.ResultSetPreferences;
 import org.jkiss.dbeaver.ui.controls.resultset.ThemeConstants;
 import org.jkiss.dbeaver.ui.data.*;
+import org.jkiss.dbeaver.ui.data.managers.BaseValueManager;
 import org.jkiss.dbeaver.ui.data.managers.DefaultValueManager;
 import org.jkiss.dbeaver.ui.data.registry.ValueManagerRegistry;
 import org.jkiss.dbeaver.ui.editors.data.internal.DataEditorsMessages;
@@ -162,6 +163,7 @@ public class ComplexObjectEditor extends TreeViewer {
 
     private CopyAction copyNameAction;
     private CopyAction copyValueAction;
+    private SetToNullAction setToNullAction;
     private Action addElementAction;
     private Action removeElementAction;
     private Action moveElementUpAction;
@@ -260,6 +262,7 @@ public class ComplexObjectEditor extends TreeViewer {
 
         this.copyNameAction = new CopyAction(true);
         this.copyValueAction = new CopyAction(false);
+        this.setToNullAction = new SetToNullAction();
         this.addElementAction = new AddElementAction();
         this.removeElementAction = new RemoveElementAction();
         this.moveElementUpAction = new MoveElementAction(SWT.UP);
@@ -306,6 +309,7 @@ public class ComplexObjectEditor extends TreeViewer {
             if (!getSelection().isEmpty()) {
                 manager.add(copyNameAction);
                 manager.add(copyValueAction);
+                manager.add(setToNullAction);
                 manager.add(new Separator());
             }
             try {
@@ -822,6 +826,32 @@ public class ComplexObjectEditor extends TreeViewer {
         }
     }
 
+    private class SetToNullAction extends Action {
+        public SetToNullAction() {
+            super(DataEditorsMessages.complex_object_editor_dialog_menu_set_element_to_null);
+        }
+
+        @Override
+        public void run() {
+            final ITreeSelection selection = getStructuredSelection();
+            if (selection.isEmpty()) {
+                return;
+            }
+            try {
+                final IValueController valueController = new ComplexValueController(
+                    (ComplexElement) selection.getFirstElement(),
+                    IValueController.EditType.NONE
+                );
+                valueController.updateValue(
+                    BaseValueManager.makeNullValue(valueController),
+                    true
+                );
+            } catch (DBCException e) {
+                log.error("Error setting value attribute to NULL", e);
+            }
+        }
+    }
+
     private class AddElementAction extends Action {
         AddElementAction() {
             super(DataEditorsMessages.complex_object_editor_dialog_menu_add_element, DBeaverIcons.getImageDescriptor(UIIcon.ROW_ADD));

plugins/org.jkiss.dbeaver.ui.editors.data/src/org/jkiss/dbeaver/ui/editors/data/internal/DataEditorsMessages.java

@@ -106,6 +106,7 @@ public class DataEditorsMessages extends NLS {
 
     public static String complex_object_editor_dialog_menu_copy_element;
     public static String complex_object_editor_dialog_menu_add_element;
+    public static String complex_object_editor_dialog_menu_set_element_to_null;
     public static String complex_object_editor_dialog_menu_remove_element;
     public static String complex_object_editor_dialog_menu_move_up_element;
     public static String complex_object_editor_dialog_menu_move_down_element;

plugins/org.jkiss.dbeaver.ui.editors.data/src/org/jkiss/dbeaver/ui/editors/data/internal/DataEditorsResources.properties

@@ -83,6 +83,7 @@ virtual_structure_editor_dialog_button_refresh = Refresh
 
 complex_object_editor_dialog_menu_copy_element = Copy {0}
 complex_object_editor_dialog_menu_add_element = Add element
+complex_object_editor_dialog_menu_set_element_to_null = Set to NULL
 complex_object_editor_dialog_menu_remove_element = Remove element
 complex_object_editor_dialog_menu_move_up_element = Move element up
 complex_object_editor_dialog_menu_move_down_element = Move element down
\ No newline at end of file

plugins/org.jkiss.dbeaver.ui.editors.data/src/org/jkiss/dbeaver/ui/editors/data/internal/DataEditorsResources_ru.properties

@@ -78,6 +78,7 @@ virtual_structure_editor_dialog_button_refresh = \u041E\u0431\u043D\u043E\u0432\
 
 complex_object_editor_dialog_menu_copy_element = \u0421\u043A\u043E\u043F\u0438\u0440\u043E\u0432\u0430\u0442\u044C {0}
 complex_object_editor_dialog_menu_add_element = \u0414\u043E\u0431\u0430\u0432\u0438\u0442\u044C \u044D\u043B\u0435\u043C\u0435\u043D\u0442
+complex_object_editor_dialog_menu_set_element_to_null = \u0423\u0441\u0442\u0430\u043D\u043E\u0432\u0438\u0442\u044C \u0432 NULL
 complex_object_editor_dialog_menu_remove_element = \u0423\u0434\u0430\u043B\u0438\u0442\u044C \u044D\u043B\u0435\u043C\u0435\u043D\u0442
 complex_object_editor_dialog_menu_move_up_element = \u041F\u0435\u0440\u0435\u0434\u0432\u0438\u043D\u0443\u0442\u044C \u044D\u043B\u0435\u043C\u0435\u043D\u0442 \u0432\u0432\u0435\u0440\u0445
 complex_object_editor_dialog_menu_move_down_element = \u041F\u0435\u0440\u0435\u0434\u0432\u0438\u043D\u0443\u0442\u044C \u044D\u043B\u0435\u043C\u0435\u043D\u0442 \u0432\u043D\u0438\u0437
\ No newline at end of file