Package org.geotools.data.store

Class ReTypingFeatureIterator

Object

ReTypingFeatureIterator

All Implemented Interfaces:

Closeable, AutoCloseable, SimpleFeatureIterator, FeatureIterator<SimpleFeature>

public class ReTypingFeatureIterator
extends Object
implements SimpleFeatureIterator

FeatureIterator wrapper which re-types features on the fly based on a target feature type.

Author:

Justin Deoliveira, The Open Planning Project

Constructor Summary

Constructors

Constructor	Description
ReTypingFeatureIterator(SimpleFeatureIterator delegate, SimpleFeatureType source, SimpleFeatureType target)

Method Summary

Modifier and Type	Method	Description
void	close()	Closes this iterator and releases any system resources associated with it.
SimpleFeatureIterator	getDelegate()
boolean	hasNext()	Does another Feature exist in this Iteration.
SimpleFeature	next()	Get the next Feature in this iteration.
protected AttributeDescriptor[]	typeAttributes(SimpleFeatureType original, SimpleFeatureType target)	Supplies mapping from origional to target FeatureType.

Methods inherited from class Object

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

Constructor Detail

ReTypingFeatureIterator

public ReTypingFeatureIterator(SimpleFeatureIterator delegate,
                               SimpleFeatureType source,
                               SimpleFeatureType target)

Method Detail

getDelegate

public SimpleFeatureIterator getDelegate()

hasNext

public boolean hasNext()

Description copied from interface: FeatureIterator

Does another Feature exist in this Iteration.

Iterator defin: Returns true if the iteration has more elements. (In other words, returns true if next would return an element rather than throwing an exception.)

Specified by:

hasNext in interface FeatureIterator<SimpleFeature>

Returns:

true if more Features exist, false otherwise.

next

public SimpleFeature next()

Description copied from interface: FeatureIterator

Get the next Feature in this iteration.

Specified by:

next in interface FeatureIterator<SimpleFeature>

Returns:

The next Feature

typeAttributes

protected AttributeDescriptor[] typeAttributes(SimpleFeatureType original,
                                               SimpleFeatureType target)

Supplies mapping from origional to target FeatureType.

Will also ensure that origional can cover target

Parameters:

target - Desired FeatureType

original - Origional FeatureType

Returns:

Mapping from originoal to target FeatureType

Throws:

IllegalArgumentException - if unable to provide a mapping

close

public void close()

Description copied from interface: FeatureIterator

Closes this iterator and releases any system resources associated with it.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface FeatureIterator<SimpleFeature>