org.geotools.jdbc

Class JDBCJoiningFilteringFeatureReader

Object

JDBCJoiningFilteringFeatureReader

All Implemented Interfaces:

Closeable, AutoCloseable, DelegatingFeatureReader<SimpleFeatureType,SimpleFeature>, FeatureReader<SimpleFeatureType,SimpleFeature>

public class JDBCJoiningFilteringFeatureReader
extends Object
implements DelegatingFeatureReader<SimpleFeatureType,SimpleFeature>

Feature reader that wraps multiple feature readers in a joining / post filtered query.

Author:

Justin Deoliveira, OpenGeo

Constructor Summary

Constructors

Constructor and Description
JDBCJoiningFilteringFeatureReader(FeatureReader<SimpleFeatureType,SimpleFeature> delegate, JoinInfo join)

Method Summary

Modifier and Type	Method and Description
void	close() Release the underlying resources associated with this stream.
FeatureReader<SimpleFeatureType,SimpleFeature>	getDelegate()
SimpleFeatureType	getFeatureType() Return the FeatureType this reader has been configured to create.
boolean	hasNext() Query whether this FeatureReader has another Feature.
SimpleFeature	next() Reads the next Feature in the FeatureReader.

Methods inherited from class Object

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

Constructor Detail

JDBCJoiningFilteringFeatureReader

public JDBCJoiningFilteringFeatureReader(FeatureReader<SimpleFeatureType,SimpleFeature> delegate,
                                         JoinInfo join)

Method Detail

getDelegate

public FeatureReader<SimpleFeatureType,SimpleFeature> getDelegate()

Specified by:

getDelegate in interface DelegatingFeatureReader<SimpleFeatureType,SimpleFeature>

Returns:

The delegate feature reader.

getFeatureType

public SimpleFeatureType getFeatureType()

Description copied from interface: FeatureReader

Return the FeatureType this reader has been configured to create.

Specified by:

getFeatureType in interface FeatureReader<SimpleFeatureType,SimpleFeature>

Returns:

the FeatureType of the Features this FeatureReader will create.

hasNext

public boolean hasNext()
                throws IOException

Description copied from interface: FeatureReader

Query whether this FeatureReader has another Feature.

Specified by:

hasNext in interface FeatureReader<SimpleFeatureType,SimpleFeature>

Returns:

True if there are more Features to be read. In other words, true if calls to next would return a feature rather than throwing an exception.

Throws:

IOException - If an error occurs determining if there are more Features.

next

public SimpleFeature next()
                   throws IOException,
                          IllegalArgumentException,
                          NoSuchElementException

Description copied from interface: FeatureReader

Reads the next Feature in the FeatureReader.

Specified by:

next in interface FeatureReader<SimpleFeatureType,SimpleFeature>

Returns:

The next feature in the reader.

Throws:

IOException - If an error occurs reading the Feature.

NoSuchElementException - If there are no more Features in the Reader.

IllegalArgumentException

close

public void close()
           throws IOException

Description copied from interface: FeatureReader

Release the underlying resources associated with this stream.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in interface FeatureReader<SimpleFeatureType,SimpleFeature>

Throws:

IOException - if an I/O error occurs