org.geotools.jdbc
Class JDBCJoiningFilteringFeatureReader

Object
  extended by JDBCJoiningFilteringFeatureReader
All Implemented Interfaces:
Closeable, 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
JDBCJoiningFilteringFeatureReader(FeatureReader delegate, JoinInfo join)
           
 
Method Summary
 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 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 FeatureReader<SimpleFeatureType,SimpleFeature>
Throws:
IOException - if an I/O error occurs


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