@@ -0,0 +1,1645 @@
+/*%0A * Licensed to the Apache Software Foundation (ASF) under one%0A * or more contributor license agreements.  See the NOTICE file%0A * distributed with this work for additional information%0A * regarding copyright ownership.  The ASF licenses this file%0A * to you under the Apache License, Version 2.0 (the%0A * %22License%22); you may not use this file except in compliance%0A * with the License.  You may obtain a copy of the License at%0A *%0A *   http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing,%0A * software distributed under the License is distributed on an%0A * %22AS IS%22 BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY%0A * KIND, either express or implied.  See the License for the%0A * specific language governing permissions and limitations%0A * under the License.%0A */%0A%0Apackage org.apache.flink.runtime.jobgraph.topology;%0A%0Aimport org.apache.flink.runtime.jobgraph.JobVertexID;%0A%0Aimport java.util.Set;%0Aimport java.util.stream.Collectors;%0A%0Aimport static org.apache.flink.util.Preconditions.checkNotNull;%0A%0A/**%0A * Set of %7B@link LogicalVertex%7D that are connected through pipelined %7B@link LogicalResult%7D.%0A */%0Apublic class LogicalPipelinedRegion %7B%0A%0A%09private final Set%3CJobVertexID%3E vertexIDs;%0A%0A%09public LogicalPipelinedRegion(final Set%3C? extends LogicalVertex%3C?, ?%3E%3E logicalVertices) %7B%0A%09%09checkNotNull(logicalVertices);%0A%0A%09%09this.vertexIDs = logicalVertices.stream()%0A%09%09%09.map(LogicalVertex::getId)%0A%09%09%09.collect(Collectors.toSet());%0A%09%7D%0A%0A%09public Set%3CJobVertexID%3E getVertexIDs() %7B%0A%09%09return vertexIDs;%0A%09%7D%0A%0A%09@Override%0A%09public String toString() %7B%0A%09%09return %22LogicalPipelinedRegion%7B%22 +%0A%09%09%09%22vertexIDs=%22 + vertexIDs +%0A%09%09%09'%7D';%0A%09%7D%0A%7D%0A

Introduce LogicalPipelinedRegion