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https://issues.apache.org/jira/browse/APEXMALHAR-2100?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15405459#comment-15405459
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ASF GitHub Bot commented on APEXMALHAR-2100:
--------------------------------------------
Github user chaithu14 commented on a diff in the pull request:
https://github.com/apache/apex-malhar/pull/330#discussion_r73289926
--- Diff:
library/src/main/java/com/datatorrent/lib/join/POJOInnerJoinOperator.java ---
@@ -0,0 +1,247 @@
+/**
+ * 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 com.datatorrent.lib.join;
+
+import java.lang.reflect.Array;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import org.apache.commons.lang3.ClassUtils;
+
+import com.datatorrent.api.Context;
+import com.datatorrent.api.DefaultInputPort;
+import com.datatorrent.api.DefaultOutputPort;
+import com.datatorrent.api.Operator;
+import com.datatorrent.api.StreamCodec;
+import com.datatorrent.api.annotation.InputPortFieldAnnotation;
+import com.datatorrent.api.annotation.OutputPortFieldAnnotation;
+import com.datatorrent.lib.util.PojoUtils;
+
+/**
+ * Concrete implementation of AbstractManagedStateInnerJoinOperator and
receives objects from both streams.
+ *
+ * @displayName POJO Inner Join Operator
+ * @tags join
+ */
+public class POJOInnerJoinOperator extends
AbstractManagedStateInnerJoinOperator<Object,Object> implements
Operator.ActivationListener<Context>
+{
+ private static final transient Logger LOG =
LoggerFactory.getLogger(POJOInnerJoinOperator.class);
+ private transient long timeIncrement;
+ private transient FieldObjectMap[] inputFieldObjects =
(FieldObjectMap[])Array.newInstance(FieldObjectMap.class, 2);
+ protected Class<?> outputClass;
+ private long time = System.currentTimeMillis();
--- End diff --
Yes. It will restore back from the state when it crash and come back.
> Development of Inner Join Operator using Spillable Datastructures
> -----------------------------------------------------------------
>
> Key: APEXMALHAR-2100
> URL: https://issues.apache.org/jira/browse/APEXMALHAR-2100
> Project: Apache Apex Malhar
> Issue Type: Task
> Reporter: Chaitanya
> Assignee: Chaitanya
>
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