org.geotools.data.db2
Class DB2FeatureSource

java.lang.Object
  org.geotools.data.jdbc.JDBCFeatureSource
      org.geotools.data.db2.DB2FeatureSource

All Implemented Interfaces:

FeatureSource

Direct Known Subclasses:

DB2FeatureStore

public class DB2FeatureSource

extends JDBCFeatureSource

DB2 Feature Source implementation. Overrides functionality in JDBCFeatureSource to provide more efficient or more appropriate DB2-specific implementation.

Author:

David Adler - IBM Corporation

Field Summary

protected DB2DataStore	dataStore
protected FeatureType	featureType

Constructor Summary

DB2FeatureSource(DB2DataStore dataStore, FeatureType featureType)
Constructs a feature source based on a DB2 data store for a specified feature type.

Method Summary

protected void	closeAll(java.sql.ResultSet rs, java.sql.Statement stmt, java.sql.Connection conn, Transaction transaction, java.sql.SQLException e) Closes everything associated with a query, the ResultSet, Statement and Connection.
com.vividsolutions.jts.geom.Envelope	getBounds(Query query) Gets the bounds of the feature using the specified query.

Methods inherited from class org.geotools.data.jdbc.JDBCFeatureSource

addFeatureListener, close, close, close, count, getBounds, getConnection, getCount, getDataStore, getFeatures, getFeatures, getFeatures, getJDBCDataStore, getSchema, getTransaction, removeFeatureListener

Methods inherited from class java.lang.Object

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

Field Detail

dataStore

protected DB2DataStore dataStore

featureType

protected FeatureType featureType

Constructor Detail

DB2FeatureSource

public DB2FeatureSource(DB2DataStore dataStore,
                        FeatureType featureType)

Constructs a feature source based on a DB2 data store for a specified feature type.

Parameters:

dataStore -

featureType -

Method Detail

closeAll

protected void closeAll(java.sql.ResultSet rs,
                        java.sql.Statement stmt,
                        java.sql.Connection conn,
                        Transaction transaction,
                        java.sql.SQLException e)

Closes everything associated with a query, the ResultSet, Statement and Connection.

Parameters:

rs - the ResultSet

stmt - the Statement

conn - the Connection

transaction - the Transaction

e - the SQLException, if any, or null

getBounds

public com.vividsolutions.jts.geom.Envelope getBounds(Query query)
                                               throws java.io.IOException

Gets the bounds of the feature using the specified query.

Specified by:

getBounds in interface FeatureSource

Overrides:

getBounds in class JDBCFeatureSource

Parameters:

query - a query object.

Returns:

the envelope representing the bounds of the features.

Throws:

java.io.IOException - if there was an encoder problem.

DataSourceException - if there was an error executing the query to get the bounds.