dbeaver-corp/dbeaver-ee#307 Composite tasks editor, settings save/load

Former-commit-id: b17e20c6

plugins/org.jkiss.dbeaver.model/src/org/jkiss/dbeaver/model/task/DBTTaskReference.java

+/*
+ * DBeaver - Universal Database Manager
+ * Copyright (C) 2010-2019 Serge Rider (serge@jkiss.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.jkiss.dbeaver.model.task;
+
+import org.jkiss.code.NotNull;
+
+/**
+ * Task reference.
+ */
+public interface DBTTaskReference {
+
+    @NotNull
+    DBTTask getTask();
+
+}

plugins/org.jkiss.dbeaver.tasks.ui/src/org/jkiss/dbeaver/tasks/ui/view/DatabaseTasksTree.java

@@ -634,10 +634,15 @@ public class DatabaseTasksTree {
                     List<DBTTask> tasks = new ArrayList<>();
                     StringBuilder buf = new StringBuilder();
                     for (Object nextSelected : selection.toArray()) {
-                        if (!(nextSelected instanceof DBTTask)) {
+                        DBTTask task = null;
+                        if (nextSelected instanceof DBTTask) {
+                            task  = (DBTTask) nextSelected;
+                        } else if (nextSelected instanceof DBTTaskReference) {
+                            task = ((DBTTaskReference) nextSelected).getTask();
+                        }
+                        if (task == null) {
                             continue;
                         }
-                        DBTTask task = (DBTTask) nextSelected;
                         tasks.add(task);
                         String taskName = task.getName();
                         if (buf.length() > 0) {