Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/5240#discussion_r163835834
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/descriptors/ConnectorDescriptor.scala
---
@@ -0,0 +1,47 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.apache.flink.table.descriptors
+
+import org.apache.flink.table.descriptors.DescriptorUtils.connector
+
+/**
+ * Describes a connector to an other system.
+ *
+ * @param tpe string identifier for the connector
+ */
+abstract class ConnectorDescriptor(private val tpe: String) extends
Descriptor {
--- End diff --
My goal was to keep the descriptor as lightweight as possible. They only
describe but do not validate. If we would add validation logic here, we would
also need to add the same logic somewhere else in the stack (i.e. table
factories) if we parse the properties from a file.
---
