Package org.knowm.yank.handlers

Class LongScalarHandler

java.lang.Object

org.apache.commons.dbutils.handlers.ScalarHandler<Long>

org.knowm.yank.handlers.LongScalarHandler

All Implemented Interfaces:

org.apache.commons.dbutils.ResultSetHandler<Long>

public class LongScalarHandler
extends org.apache.commons.dbutils.handlers.ScalarHandler<Long>

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
Long	handle(ResultSet rs)	Returns one ResultSet column as an object via the ResultSet.getObject() method that performs type conversions.

Methods inherited from class java.lang.Object

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

Constructor Details

LongScalarHandler

public LongScalarHandler()

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

LongScalarHandler

public LongScalarHandler(int columnIndex)

Creates a new instance of ColumnListHandler.

Parameters:

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

LongScalarHandler

public LongScalarHandler(String columnName)

Creates a new instance of ColumnListHandler.

Parameters:

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

Method Details

handle

public Long handle(ResultSet rs)
            throws SQLException

Returns one ResultSet column as an object via the ResultSet.getObject() method that performs type conversions.

Specified by:

handle in interface org.apache.commons.dbutils.ResultSetHandler<Long>

Overrides:

handle in class org.apache.commons.dbutils.handlers.ScalarHandler<Long>

Parameters:

rs - ResultSet to process.

Returns:

The column or null if there are no rows in the ResultSet.

Throws:

SQLException - if a database access error occurs

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

See Also:

• ResultSetHandler.handle(java.sql.ResultSet)