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https://issues.apache.org/jira/browse/STORM-676?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15208270#comment-15208270
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ASF GitHub Bot commented on STORM-676:
--------------------------------------
Github user arunmahadevan commented on a diff in the pull request:
https://github.com/apache/storm/pull/1072#discussion_r57143565
--- Diff:
storm-core/src/jvm/org/apache/storm/trident/windowing/config/WindowConfig.java
---
@@ -0,0 +1,55 @@
+/**
+ * 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
+ * <p/>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p/>
+ * 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.storm.trident.windowing.config;
+
+import java.io.Serializable;
+
+/**
+ * Windowing configuration with window and sliding length.
+ */
+public interface WindowConfig extends Serializable {
+
+ /**
+ * Returns the length of the window.
+ * @return
+ */
+ public int getWindowLength();
+
+ /**
+ * Returns the sliding length of the moving window.
+ * @return
+ */
+ public int getSlidingLength();
+
+ /**
+ * Gives the type of windowing. It can be any of {@code Type} values.
+ *
+ * @return
+ */
+ public Type getWindowType();
+
+ public void validate();
+
+ public enum Type {
--- End diff --
The subclasses already capture the type of the WindowConfig so this enum
can be avoided. Instead of switching on this type later to return the window
strategy, you can add a method here that returns the window strategy and have
the subclasses of WindowConfig return the appropriate WindowStrategy.
> Storm Trident support for sliding/tumbling windows
> --------------------------------------------------
>
> Key: STORM-676
> URL: https://issues.apache.org/jira/browse/STORM-676
> Project: Apache Storm
> Issue Type: Improvement
> Components: storm-core
> Reporter: Sriharsha Chintalapani
> Assignee: Satish Duggana
> Fix For: 1.0.0, 2.0.0
>
> Attachments: StormTrident_windowing_support-676.pdf
>
>
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