类分层结构
- java.lang.Object
- org.apache.flink.api.common.functions.AbstractRichFunction (implements org.apache.flink.api.common.functions.RichFunction, java.io.Serializable)
- org.apache.flink.streaming.api.functions.KeyedProcessFunction<K,I,O>
- org.apache.flink.table.runtime.operators.bundle.MapBundleFunction<K,V,IN,OUT> (implements org.apache.flink.api.common.functions.Function)
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