vacaly commented on code in PR #192:
URL: https://github.com/apache/flink-ml/pull/192#discussion_r1053974995
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flink-ml-lib/src/main/java/org/apache/flink/ml/recommendation/SwingModelData.java:
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@@ -0,0 +1,106 @@
+package org.apache.flink.ml.recommendation;
+
+import org.apache.flink.api.common.functions.MapFunction;
+import org.apache.flink.api.common.serialization.Encoder;
+import org.apache.flink.api.common.typeinfo.TypeInformation;
+import org.apache.flink.api.common.typeutils.base.FloatSerializer;
+import org.apache.flink.api.common.typeutils.base.ListSerializer;
+import org.apache.flink.api.common.typeutils.base.StringSerializer;
+import org.apache.flink.configuration.Configuration;
+import org.apache.flink.connector.file.src.reader.SimpleStreamFormat;
+import org.apache.flink.core.fs.FSDataInputStream;
+import org.apache.flink.core.memory.DataInputView;
+import org.apache.flink.core.memory.DataInputViewStreamWrapper;
+import org.apache.flink.core.memory.DataOutputView;
+import org.apache.flink.core.memory.DataOutputViewStreamWrapper;
+import org.apache.flink.ml.clustering.kmeans.KMeansModelData;
+import org.apache.flink.streaming.api.datastream.DataStream;
+import org.apache.flink.table.api.DataTypes;
+import org.apache.flink.table.api.Table;
+import org.apache.flink.table.api.bridge.java.StreamTableEnvironment;
+import org.apache.flink.types.Row;
+
+import java.io.EOFException;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class SwingModelData {
+ public String mainItem;
+ public ArrayList <String> items;
Review Comment:
Thanks for your suggestion. Using `List` results in `ClassCastException` in
`SwingModelData.getDataStream()`. No idea why it can't work.
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