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 and Description
protected class	JdbcDataSource.ResultSetIterator

Field Summary

Fields

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

Constructor Summary

Constructors

Constructor and Description
JdbcDataSource()

Method Summary

Modifier and Type	Method and 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>>>