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.streaming.api.operators.AbstractStreamOperator<OUT> (implements java.io.Serializable, org.apache.flink.streaming.api.operators.SetupableStreamOperator<OUT>, org.apache.flink.streaming.api.operators.StreamOperator<OUT>, org.apache.flink.streaming.api.operators.StreamOperatorStateHandler.CheckpointedStreamOperator)
- org.apache.flink.table.runtime.operators.TableStreamOperator<OUT>
- org.apache.flink.table.runtime.operators.over.BufferDataOverWindowOperator (implements org.apache.flink.streaming.api.operators.BoundedOneInput, org.apache.flink.streaming.api.operators.OneInputStreamOperator<IN,OUT>)
- org.apache.flink.table.runtime.operators.over.NonBufferOverWindowOperator (implements org.apache.flink.streaming.api.operators.OneInputStreamOperator<IN,OUT>)
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