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https://issues.apache.org/jira/browse/FLINK-8480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16386640#comment-16386640
]
ASF GitHub Bot commented on FLINK-8480:
---------------------------------------
Github user bowenli86 commented on a diff in the pull request:
https://github.com/apache/flink/pull/5482#discussion_r172303671
--- Diff:
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/functions/TimeBoundedStreamJoinOperator.java
---
@@ -0,0 +1,480 @@
+/*
+ * 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.streaming.api.functions;
+
+import org.apache.flink.annotation.Internal;
+import org.apache.flink.annotation.VisibleForTesting;
+import org.apache.flink.api.common.state.MapState;
+import org.apache.flink.api.common.state.MapStateDescriptor;
+import org.apache.flink.api.common.typeutils.TypeSerializer;
+import org.apache.flink.api.common.typeutils.base.BooleanSerializer;
+import org.apache.flink.api.common.typeutils.base.ListSerializer;
+import org.apache.flink.api.common.typeutils.base.LongSerializer;
+import org.apache.flink.api.java.tuple.Tuple2;
+import org.apache.flink.api.java.tuple.Tuple3;
+import org.apache.flink.api.java.typeutils.runtime.TupleSerializer;
+import org.apache.flink.runtime.state.StateInitializationContext;
+import org.apache.flink.runtime.state.VoidNamespace;
+import org.apache.flink.runtime.state.VoidNamespaceSerializer;
+import org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator;
+import org.apache.flink.streaming.api.operators.InternalTimer;
+import org.apache.flink.streaming.api.operators.InternalTimerService;
+import org.apache.flink.streaming.api.operators.TimestampedCollector;
+import org.apache.flink.streaming.api.operators.Triggerable;
+import org.apache.flink.streaming.api.operators.TwoInputStreamOperator;
+import org.apache.flink.streaming.api.watermark.Watermark;
+import org.apache.flink.streaming.runtime.streamrecord.StreamRecord;
+import org.apache.flink.util.OutputTag;
+import org.apache.flink.util.Preconditions;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * A TwoInputStreamOperator to execute time-bounded stream inner joins.
+ *
+ * <p>By using a configurable lower and upper bound this operator will
emit exactly those pairs
+ * (T1, T2) where t2.ts ∈ [T1.ts + lowerBound, T1.ts + upperBound]. Both
the lower and the
+ * upper bound can be configured to be either inclusive or exclusive.
--- End diff --
bound**s**
> Implement Java API to expose join functionality of
> TimeBoundedStreamJoinOperator
> --------------------------------------------------------------------------------
>
> Key: FLINK-8480
> URL: https://issues.apache.org/jira/browse/FLINK-8480
> Project: Flink
> Issue Type: Sub-task
> Reporter: Florian Schmidt
> Priority: Major
>
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