org.geotools.data.collection
Class DelegateFeatureReader<T extends org.opengis.feature.type.FeatureType,F extends org.opengis.feature.Feature>

java.lang.Object
  extended by org.geotools.data.collection.DelegateFeatureReader<T,F>
All Implemented Interfaces:
FeatureReader<T,F>

public class DelegateFeatureReader<T extends org.opengis.feature.type.FeatureType,F extends org.opengis.feature.Feature>
extends java.lang.Object
implements FeatureReader<T,F>

A FeatureReader that wraps up a normal FeatureIterator.

This class is useful for faking (and testing) the Resource based API against in memory datastructures. You are warned that to complete the illusion that Resource based IO is occuring content will be duplicated.

Author:
Jody Garnett, Refractions Research, Inc.

Constructor Summary
DelegateFeatureReader(T featureType, FeatureIterator<F> features)
           
 
Method Summary
 void close()
          Release the underlying resources associated with this stream.
 T getFeatureType()
          Return the FeatureType this reader has been configured to create.
 boolean hasNext()
          Query whether this FeatureReader has another Feature.
 F next()
          Reads the next Feature in the FeatureReader.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DelegateFeatureReader

public DelegateFeatureReader(T featureType,
                             FeatureIterator<F> features)
Method Detail

getFeatureType

public T getFeatureType()
Description copied from interface: FeatureReader
Return the FeatureType this reader has been configured to create.

Specified by:
getFeatureType in interface FeatureReader<T extends org.opengis.feature.type.FeatureType,F extends org.opengis.feature.Feature>
Returns:
the FeatureType of the Features this FeatureReader will create.

next

public F next()
                                           throws java.io.IOException,
                                                  IllegalAttributeException,
                                                  java.util.NoSuchElementException
Description copied from interface: FeatureReader
Reads the next Feature in the FeatureReader.

Specified by:
next in interface FeatureReader<T extends org.opengis.feature.type.FeatureType,F extends org.opengis.feature.Feature>
Returns:
The next feature in the reader.
Throws:
java.io.IOException - If an error occurs reading the Feature.
IllegalAttributeException - If the attributes read do not comply with the FeatureType.
java.util.NoSuchElementException - If there are no more Features in the Reader.

hasNext

public boolean hasNext()
                throws java.io.IOException
Description copied from interface: FeatureReader
Query whether this FeatureReader has another Feature.

Specified by:
hasNext in interface FeatureReader<T extends org.opengis.feature.type.FeatureType,F extends org.opengis.feature.Feature>
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:
java.io.IOException - If an error occurs determining if there are more Features.

close

public void close()
           throws java.io.IOException
Description copied from interface: FeatureReader
Release the underlying resources associated with this stream.

Specified by:
close in interface FeatureReader<T extends org.opengis.feature.type.FeatureType,F extends org.opengis.feature.Feature>
Throws:
java.io.IOException - DOCUMENT ME!


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