Package org.apache.solr.handler.dataimport

Class JdbcDataSource

java.lang.Object

org.apache.solr.handler.dataimport.DataSource<Iterator<Map<String,Object>>>

org.apache.solr.handler.dataimport.JdbcDataSource

public class JdbcDataSource
extends DataSource<Iterator<Map<String,Object>>>

A DataSource implementation which can fetch data using JDBC.

Refer to http://wiki.apache.org/solr/DataImportHandler for more details.

This API is experimental and may change in the future.

Since:

solr 1.3

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected class	JdbcDataSource.ResultSetIterator

Field Summary

Fields

Modifier and Type	Field	Description
static String	CONVERT_TYPE
static String	DRIVER
protected Callable<Connection>	factory
static String	JNDI_NAME
static String	URL

Constructor Summary

Constructors

Constructor	Description
JdbcDataSource()

Method Summary

Modifier and Type	Method	Description
void	close()	Cleans up resources of this DataSource after use.
protected Callable<Connection>	createConnectionFactory(Context context, Properties initProps)
protected JdbcDataSource.ResultSetIterator	createResultSetIterator(String query)
protected void	finalize()
protected Connection	getConnection()
Iterator<Map<String,Object>>	getData(String query)	Get records for the given query.The return type depends on the implementation .
void	init(Context context, Properties initProps)	Initializes the DataSource with the Context and initialization properties.
protected List<String>	readFieldNames(ResultSetMetaData metaData)

Methods inherited from class java.lang.Object

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

Field Detail

factory

protected Callable<Connection> factory

URL

public static final String URL

See Also:

Constant Field Values

JNDI_NAME

public static final String JNDI_NAME

See Also:

Constant Field Values

DRIVER

public static final String DRIVER

See Also:

Constant Field Values

CONVERT_TYPE

public static final String CONVERT_TYPE

See Also:

Constant Field Values

Constructor Detail

JdbcDataSource

public JdbcDataSource()

Method Detail

init

public void init(Context context,
                 Properties initProps)

Description copied from class: DataSource

Initializes the DataSource with the Context and initialization properties.

This is invoked by the DataImporter after creating an instance of this class.

Specified by:

init in class DataSource<Iterator<Map<String,Object>>>

createConnectionFactory

protected Callable<Connection> createConnectionFactory(Context context,
                                                       Properties initProps)

getData

public Iterator<Map<String,Object>> getData(String query)

Description copied from class: DataSource

Get records for the given query.The return type depends on the implementation .

Specified by:

getData in class DataSource<Iterator<Map<String,Object>>>

Parameters:

query - The query string. It can be a SQL for JdbcDataSource or a URL for HttpDataSource or a file location for FileDataSource or a custom format for your own custom DataSource.

Returns:

Depends on the implementation. For instance JdbcDataSource returns an Iterator<Map <String,Object>>

createResultSetIterator

protected JdbcDataSource.ResultSetIterator createResultSetIterator(String query)

readFieldNames

protected List<String> readFieldNames(ResultSetMetaData metaData)
                               throws SQLException

Throws:

SQLException

getConnection

protected Connection getConnection()
                            throws Exception

Throws:

Exception

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable

close

public void close()

Description copied from class: DataSource

Cleans up resources of this DataSource after use.

Specified by:

close in class DataSource<Iterator<Map<String,Object>>>