IUDFInputDataSet (IoTDB Server 0.14.0-preview2 API)

All Known Implementing Classes:

MultiInputColumnIntermediateLayer, RawQueryDataSetWithValueFilter, TsBlockInputDataSet, UDFInputDataSet, UDFRawQueryInputDataSetWithoutValueFilter
```
public interface IUDFInputDataSet
```
The input data set interface for a UDFPlan

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default YieldableState`	`canYieldNextRowInObjects()`	Whether the data set has next row.
`java.util.List<org.apache.iotdb.tsfile.file.metadata.enums.TSDataType>`	`getDataTypes()`	returns the input data types, except the timestamp column(the last column).
`boolean`	`hasNextRowInObjects()`	Whether the data set has next row.
`java.lang.Object[]`	`nextRowInObjects()`	Get the next row for UDFPlan input.

- Method Detail
  - getDataTypes
```
java.util.List<org.apache.iotdb.tsfile.file.metadata.enums.TSDataType> getDataTypes()
```
    returns the input data types, except the timestamp column(the last column).
  - hasNextRowInObjects
```
boolean hasNextRowInObjects()
                     throws java.io.IOException
```
    Whether the data set has next row.
    
    Throws:
    
    java.io.IOException
  - canYieldNextRowInObjects
```
default YieldableState canYieldNextRowInObjects()
                                         throws java.io.IOException
```
    Whether the data set has next row.
    
    Throws:
    
    java.io.IOException
  - nextRowInObjects
```
java.lang.Object[] nextRowInObjects()
                             throws java.io.IOException
```
    Get the next row for UDFPlan input.
    The last element in the row is the timestamp.
    
    Throws:
    
    java.io.IOException