Class FrameColumnReaders

java.lang.Object
org.apache.druid.frame.read.columnar.FrameColumnReaders

public class FrameColumnReaders extends Object
Creates FrameColumnReader corresponding to a given column type and number. Returns a dummy UnsupportedColumnTypeFrameColumnReader if the column type is not supported or unknown. Calling any method of the dummy reader will throw with relevant error message.