Package org.apache.nifi.sql

Interface RowStream

All Superinterfaces:

AutoCloseable

All Known Implementing Classes:

IterableRowStream

public interface RowStream
extends AutoCloseable

An interface that is responsible for returning rows of data

Method Summary

Modifier and Type	Method	Description
Object[]	nextRow()	Returns the next row of data as an object array, or null if the stream is out of data.

Methods inherited from interface java.lang.AutoCloseable

close

Method Details

nextRow

Object[] nextRow()
          throws IOException

Returns the next row of data as an object array, or null if the stream is out of data. Note that the objects returned MUST adhere to the schema of the ResettableDataSource that created this RowStream.

Returns:

the next row of data, or null if there is no more data

Throws:

IOException - if unable to obtain the next row of data due to I/O failure