org.geotools.data.collection

Class DelegateFeatureReader<T extends FeatureType,F extends Feature>

Object

DelegateFeatureReader<T,F>

All Implemented Interfaces:

Closeable, AutoCloseable, FeatureReader<T,F>

Direct Known Subclasses:

DelegateSimpleFeatureReader

public class DelegateFeatureReader<T extends FeatureType,F extends Feature>
extends 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

Constructors

Constructor and Description
DelegateFeatureReader(T featureType, FeatureIterator<F> features)

Method Summary

Modifier and Type	Method and Description
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 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 FeatureType,F extends Feature>

Returns:

the FeatureType of the Features this FeatureReader will create.

next

public F next()
       throws IOException,
              IllegalAttributeException,
              NoSuchElementException

Description copied from interface: FeatureReader

Reads the next Feature in the FeatureReader.

Specified by:

next in interface FeatureReader<T extends FeatureType,F extends Feature>

Returns:

The next feature in the reader.

Throws:

IOException - If an error occurs reading the Feature.

IllegalAttributeException - If the attributes read do not comply with the FeatureType.

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

hasNext

public boolean hasNext()
                throws IOException

Description copied from interface: FeatureReader

Query whether this FeatureReader has another Feature.

Specified by:

hasNext in interface FeatureReader<T extends FeatureType,F extends 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:

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

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<T extends FeatureType,F extends Feature>

Throws:

IOException - if an I/O error occurs