Package org.apache.druid.query.rowsandcols.concrete

Interface FrameRowsAndColumns

All Superinterfaces:

RowsAndColumns

All Known Implementing Classes:

AbstractFrameRowsAndColumns, ColumnBasedFrameRowsAndColumns, RowBasedFrameRowsAndColumns

public interface FrameRowsAndColumns
extends RowsAndColumns

Wrapper around Frame with an optional signature (see getSignature()). If the signature is available, this object has working RowsAndColumns.getColumnNames() and RowsAndColumns.findColumn(String) methods, and can become a CursorFactory through RowsAndColumns.as(Class). If the signature is not available, this object can only really be used by getting the underlying Frame via getFrame() or RowsAndColumns.as(Class).

Method Summary

Modifier and Type	Method	Description
Frame	getFrame()	Returns the frame.
RowSignature	getSignature()	Returns a signature, which may or may not be available.

Methods inherited from interface org.apache.druid.query.rowsandcols.RowsAndColumns

as, findColumn, getColumnNames, numRows

Method Details

getFrame

Frame getFrame()

Returns the frame.

getSignature

RowSignature getSignature()

Returns a signature, which may or may not be available.

Throws:

DruidException - if signature is not available