org.geotools.process.feature

Class AbstractFeatureCollectionProcess

Object

AbstractProcess

AbstractFeatureCollectionProcess

All Implemented Interfaces:

Process

Direct Known Subclasses:

FeatureToFeatureProcess

public abstract class AbstractFeatureCollectionProcess
extends AbstractProcess

A Process for feature collections.

Since:

2.6

Author:

Justin Deoliveira, OpenGEO, Michael Bedward

Field Summary

Fields inherited from class AbstractProcess

factory

Constructor Summary

Constructors

Constructor and Description
AbstractFeatureCollectionProcess(AbstractFeatureCollectionProcessFactory factory) Constructor

Method Summary

Modifier and Type	Method and Description
protected abstract void	processFeature(SimpleFeature feature, Map<String,Object> input) Performs an operation on a single feature in the collection.

Methods inherited from class Object

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

Methods inherited from interface Process

execute

Constructor Detail

AbstractFeatureCollectionProcess

public AbstractFeatureCollectionProcess(AbstractFeatureCollectionProcessFactory factory)

Constructor

Method Detail

processFeature

protected abstract void processFeature(SimpleFeature feature,
                                       Map<String,Object> input)
                                throws Exception

Performs an operation on a single feature in the collection.

This method should do some work based on the feature and then set any attributes on the feature as necessary. Example of a simple buffering operation:

 protected void processFeature(SimpleFeature feature, Map input) throws Exception {
    Double buffer = (Double) input.get( BufferFeatureCollectionFactory.BUFFER.key );

    Geometry g = (Geometry) feature.getDefaultGeometry();
    g = g.buffer( buffer );

    feature.setDefaultGeometry( g );
 }
 

Parameters:

feature - the feature being processed

input - a Map of input parameters

Throws:

Exception