Package com.databricks.jdbc.api.impl

Class ColumnarRowView

java.lang.Object

com.databricks.jdbc.api.impl.ColumnarRowView

public class ColumnarRowView
extends Object

Memory-efficient columnar view that provides row-based access without materializing all rows. Instead of creating List>, this class provides direct access to columnar data on a per-row, per-column basis, significantly reducing memory allocations.

Constructor Summary

Constructors

Constructor	Description
ColumnarRowView(TRowSet rowSet)

Method Summary

Modifier and Type	Method	Description
int	getColumnCount()	Gets the number of columns in this view.
int	getRowCount()	Gets the number of rows in this view.
Object	getValue(int rowIndex, int columnIndex)	Gets the value at the specified row and column without materializing the entire row.
Object[]	materializeRow(int rowIndex)	Creates a materialized row only when explicitly requested (for backward compatibility).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ColumnarRowView

public ColumnarRowView(TRowSet rowSet)
                throws DatabricksSQLException

Throws:

DatabricksSQLException

Method Detail

getRowCount

public int getRowCount()

Gets the number of rows in this view.

getColumnCount

public int getColumnCount()

Gets the number of columns in this view.

getValue

public Object getValue(int rowIndex,
                       int columnIndex)
                throws DatabricksSQLException

Gets the value at the specified row and column without materializing the entire row.

Throws:

DatabricksSQLException

materializeRow

public Object[] materializeRow(int rowIndex)
                        throws DatabricksSQLException

Creates a materialized row only when explicitly requested (for backward compatibility). This should be avoided in performance-critical paths.

Throws:

DatabricksSQLException