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https://issues.apache.org/jira/browse/FLINK-3034?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15338737#comment-15338737
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ASF GitHub Bot commented on FLINK-3034:
---------------------------------------
Github user mjsax commented on a diff in the pull request:
https://github.com/apache/flink/pull/1813#discussion_r67622515
--- Diff:
flink-streaming-connectors/flink-connector-redis/src/main/java/org/apache/flink/streaming/connectors/redis/common/mapper/RedisDataTypeDescription.java
---
@@ -0,0 +1,90 @@
+/*
+ * 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.connectors.redis.common.mapper;
+
+import java.io.Serializable;
+
+/**
+ * The description of the data type. This must be passed while creating
new {@link RedisMapper}.
+ * <p>When creating descriptor for {@link RedisDataType#HASH} and {@link
RedisDataType#SORTED_SET},
+ * plz use the first constructor {@link
#RedisDataTypeDescription(RedisDataType, String)}.
+ * If the additional key is null it will throw IllegalArgumentException
+ *
+ * <p>When {@link RedisDataType} is not {@link RedisDataType#HASH} and
{@link RedisDataType#SORTED_SET}
+ * plz use the second constructor {@link
#RedisDataTypeDescription(RedisDataType)}
+ */
+public class RedisDataTypeDescription implements Serializable {
+
+ private static final long serialVersionUID = 1L;
+
+ private RedisDataType dataType;
+
+ /**
+ * This additional key needed for {@link RedisDataType#HASH} and {@link
RedisDataType#SORTED_SET}.
+ * Other {@link RedisDataType} works only with two variable i.e. name
of the list and value to be added.
+ * But for {@link RedisDataType#HASH} and {@link
RedisDataType#SORTED_SET} we need three variables.
+ * <p>For {@link RedisDataType#HASH} we need hash name, hash key and
element.
+ * {@link #getAdditionalKey()} used as hash name for {@link
RedisDataType#HASH}
+ * <p>For {@link RedisDataType#SORTED_SET} we need set name, the
element and it's score.
+ * {@link #getAdditionalKey()} used as set name for {@link
RedisDataType#SORTED_SET}
+ */
+ private String additionalKey;
+
+ /**
+ * Use this constructor when data type is HASH or SORTED_SET.
+ *
--- End diff --
If different data type is specified, {@code additionalKey} is ignored.
> Redis SInk Connector
> --------------------
>
> Key: FLINK-3034
> URL: https://issues.apache.org/jira/browse/FLINK-3034
> Project: Flink
> Issue Type: New Feature
> Components: Streaming Connectors
> Reporter: Matthias J. Sax
> Assignee: Subhankar Biswas
> Priority: Minor
>
> Flink does not provide a sink connector for Redis.
> See FLINK-3033
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