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https://issues.apache.org/jira/browse/METRON-1771?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16607683#comment-16607683
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ASF GitHub Bot commented on METRON-1771:
----------------------------------------
Github user merrimanr commented on a diff in the pull request:
https://github.com/apache/metron/pull/1190#discussion_r216090892
--- Diff:
metron-platform/metron-indexing/src/test/java/org/apache/metron/indexing/InMemoryMetaAlertRetrieveLatestDao.java
---
@@ -0,0 +1,45 @@
+/*
+ * 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.metron.indexing;
+
+import org.apache.metron.indexing.dao.IndexDao;
+import org.apache.metron.indexing.dao.metaalert.MetaAlertRetrieveLatestDao;
+import org.apache.metron.indexing.dao.search.GetRequest;
+import org.apache.metron.indexing.dao.update.Document;
+
+import java.io.IOException;
+import java.util.List;
+
+public class InMemoryMetaAlertRetrieveLatestDao implements
MetaAlertRetrieveLatestDao {
--- End diff --
This class doesn't do much but is needed to compose an
InMemoryMetaAlertUpdateDao.
> Update REST endpoints to support eventually consistent UI updates
> -----------------------------------------------------------------
>
> Key: METRON-1771
> URL: https://issues.apache.org/jira/browse/METRON-1771
> Project: Metron
> Issue Type: Improvement
> Reporter: Ryan Merriman
> Priority: Major
>
> Currently the REST endpoints that perform document updates either return
> true/false or nothing. This puts the responsibility of retrieving the
> updated state of the object on the client in a separate call or
> optimistically applying the changes and reverting when an update fails. This
> can be problematic if a client attempts to get the current state immediately
> after an update and the change isn't visible yet in the back end.
> Ideally they should return the updated state of the object, eliminating the
> need to look up the updated state in a separate call.
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