Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/6276#discussion_r201015258
--- Diff:
flink-runtime/src/test/java/org/apache/flink/runtime/state/TestPriorityQueueSetFactory.java
---
@@ -0,0 +1,49 @@
+/*
+ * 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.runtime.state;
+
+import org.apache.flink.api.common.typeutils.TypeSerializer;
+import org.apache.flink.runtime.state.heap.HeapPriorityQueueElement;
+import org.apache.flink.runtime.state.heap.HeapPriorityQueueSet;
+
+import javax.annotation.Nonnull;
+
+import java.util.Comparator;
+
+/**
+ * Test implementation of a {@link PriorityQueueSetFactory}.
+ */
+public class TestPriorityQueueSetFactory implements
PriorityQueueSetFactory {
+
+ private final KeyGroupRange keyGroupRange;
+ private final int totalkeyGroups;
+
+ public TestPriorityQueueSetFactory(KeyGroupRange keyGroupRange, int
totalKeyGroups) {
+ this.keyGroupRange = keyGroupRange;
+ this.totalkeyGroups = totalKeyGroups;
+ }
+
+ @Override
+ public <T extends HeapPriorityQueueElement>
KeyGroupedInternalPriorityQueue<T> create(
+ @Nonnull String stateName,
+ @Nonnull TypeSerializer<T> byteOrderedElementSerializer,
+ @Nonnull Comparator<T> elementComparator,
+ @Nonnull KeyExtractorFunction<T> keyExtractor) {
--- End diff --
Please indent one level more
---
