Package nl.cwi.monetdb.embedded.mapping

Class AbstractRowSet

java.lang.Object

nl.cwi.monetdb.embedded.mapping.AbstractRowSet

Direct Known Subclasses:

QueryResultRowSet, RowIterator

public abstract class AbstractRowSet
extends Object

A row set retrieved from an embedded MonetDB query result. All the values in this set are already mapped to Java classes a priori.

Author:

Pedro Ferreira

Field Summary

Fields

Modifier and Type	Field	Description
protected MonetDBToJavaMapping[]	mappings	The MonetDB-To-Java mappings of the columns.
protected MonetDBRow[]	rows	The rows of this set.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractRowSet(AbstractConnectionResult table, Object[][] rows)

Method Summary

Modifier and Type	Method	Description
abstract int	getColumnIndexByName(String columnName)	Gets a column index in the result set by name.
int	getNumberOfColumns()	Gets the number of columns in this set.
AbstractConnectionResult	getQueryResultTable()	Gets the original query result set this row set belongs.

Methods inherited from class java.lang.Object

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

Field Details

mappings

protected final MonetDBToJavaMapping[] mappings

The MonetDB-To-Java mappings of the columns.

rows

protected final MonetDBRow[] rows

The rows of this set.

Constructor Details

AbstractRowSet

protected AbstractRowSet(AbstractConnectionResult table, Object[][] rows) throws MonetDBEmbeddedException

Throws:

MonetDBEmbeddedException

Method Details

getQueryResultTable

public AbstractConnectionResult getQueryResultTable()

Gets the original query result set this row set belongs.

Returns:

The original query result set this row set belongs

getNumberOfColumns

public int getNumberOfColumns()

Gets the number of columns in this set.

Returns:

The number of columns in this set

getColumnIndexByName

public abstract int getColumnIndexByName(String columnName) throws MonetDBEmbeddedException

Gets a column index in the result set by name.

Parameters:

columnName - The column name

Returns:

The index number

Throws:

MonetDBEmbeddedException - If an error in the database occurred.