org.apache.commons.dbutils.handlers

Class ColumnListHandler<T>

java.lang.Object

org.apache.commons.dbutils.handlers.AbstractListHandler<T>

org.apache.commons.dbutils.handlers.ColumnListHandler<T>

Type Parameters:

T - The type of the column.

All Implemented Interfaces:

ResultSetHandler<List<T>>

public class ColumnListHandler<T>
extends AbstractListHandler<T>

ResultSetHandler implementation that converts one ResultSet column into a List of Objects. This class is thread safe.

Since:

1.1

See Also:

ResultSetHandler

Constructor Summary

Constructors

Constructor and Description
ColumnListHandler() Creates a new instance of ColumnListHandler.
ColumnListHandler(int columnIndex) Creates a new instance of ColumnListHandler.
ColumnListHandler(String columnName) Creates a new instance of ColumnListHandler.

Method Summary

Modifier and Type	Method and Description
protected T	handleRow(ResultSet resultSet) Returns one ResultSet column value as Object.

Methods inherited from class org.apache.commons.dbutils.handlers.AbstractListHandler

handle

Methods inherited from class java.lang.Object

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

Constructor Detail

ColumnListHandler

public ColumnListHandler()

Creates a new instance of ColumnListHandler. The first column of each row will be returned from handle().

ColumnListHandler

public ColumnListHandler(int columnIndex)

Creates a new instance of ColumnListHandler.

Parameters:

columnIndex - The index of the column to retrieve from the ResultSet.

ColumnListHandler

public ColumnListHandler(String columnName)

Creates a new instance of ColumnListHandler.

Parameters:

columnName - The name of the column to retrieve from the ResultSet.

Method Detail

handleRow

protected T handleRow(ResultSet resultSet)
               throws SQLException

Returns one ResultSet column value as Object.

Specified by:

handleRow in class AbstractListHandler<T>

Parameters:

resultSet - ResultSet to process.

Returns:

Object, never null.

Throws:

SQLException - if a database access error occurs

ClassCastException - if the class datatype does not match the column type

See Also:

AbstractListHandler.handle(ResultSet)