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https://issues.apache.org/jira/browse/ROCKETMQ-121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15948843#comment-15948843
]
ASF GitHub Bot commented on ROCKETMQ-121:
-----------------------------------------
Github user vongosling commented on a diff in the pull request:
https://github.com/apache/incubator-rocketmq/pull/82#discussion_r108883867
--- Diff:
broker/src/main/java/org/apache/rocketmq/broker/filter/ConsumerFilterData.java
---
@@ -0,0 +1,180 @@
+/*
+ * 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.rocketmq.broker.filter;
+
+import org.apache.rocketmq.filter.expression.Expression;
+import org.apache.rocketmq.filter.util.BloomFilterData;
+
+/**
+ * Filter data of consumer.
+ */
+public class ConsumerFilterData {
+
+ private String consumerGroup;
+ private String topic;
+ private String expression;
+ private String expressionType;
+ private transient Expression compiledExpression;
+ private long bornTime;
+ private long deadTime = 0;
+ private BloomFilterData bloomFilterData;
+ private long clientVersion;
+
+ public boolean isDead() {
+ return this.deadTime >= this.bornTime;
+ }
+
+ public long deadHowLong() {
--- End diff --
what is deadhowlong
> Support message filtering based on SQL92
> ----------------------------------------
>
> Key: ROCKETMQ-121
> URL: https://issues.apache.org/jira/browse/ROCKETMQ-121
> Project: Apache RocketMQ
> Issue Type: Wish
> Components: rocketmq-client, rocketmq-store
> Reporter: yukon
> Assignee: vongosling
> Priority: Minor
>
> So far, RocketMQ only support message filtering feature by `TAG`, but one
> message only can own one tag, this is too limited to meet complex business
> requirements.
> So, we want to define and implement a reasonable filter language based on a
> subset of the SQL 92 expression syntax to support customized message
> filtering.
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