Package org.geotools.process.vector

Class AggregateProcess

Object

AggregateProcess

All Implemented Interfaces:

VectorProcess

public class AggregateProcess
extends Object
implements VectorProcess

Computes various attribute statistics over vector data sets.

Author:

Andrea Aime

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	AggregateProcess.AggregateResultsConverterFactory	Converter factory that converts AggregateProcess.Results to FeatureCollection.
static class	AggregateProcess.AggregationFunction
static class	AggregateProcess.Results	The aggregate function results

Constructor Summary

Constructors

Constructor	Description
AggregateProcess()

Method Summary

Modifier and Type	Method	Description
AggregateProcess.Results	execute(SimpleFeatureCollection features, String aggAttribute, Set<AggregateProcess.AggregationFunction> functions, boolean singlePass, List<String> groupByAttributes, ProgressListener progressListener)
AggregateProcess.Results	execute(SimpleFeatureCollection features, String aggAttribute, Set<AggregateProcess.AggregationFunction> functions, boolean singlePass, ProgressListener progressListener)
static AggregateProcess.Results	process(SimpleFeatureCollection features, String aggAttribute, Set<AggregateProcess.AggregationFunction> functions, Boolean singlePass, ProgressListener progressListener)	Computes various attribute statistics over vector data sets
static AggregateProcess.Results	process(SimpleFeatureCollection features, String aggAttribute, Set<AggregateProcess.AggregationFunction> functions, List<String> groupByAttributes, Boolean singlePass, ProgressListener progressListener)

Methods inherited from class Object

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

Constructor Detail

AggregateProcess

public AggregateProcess()

Method Detail

process

public static AggregateProcess.Results process(SimpleFeatureCollection features,
                                               String aggAttribute,
                                               Set<AggregateProcess.AggregationFunction> functions,
                                               Boolean singlePass,
                                               ProgressListener progressListener)
                                        throws ProcessException,
                                               IOException

Computes various attribute statistics over vector data sets

Parameters:

features - FeatureCollection to aggregate

aggAttribute - target attribute

Returns:

aggregate Results

Throws:

ProcessException

IOException

process

public static AggregateProcess.Results process(SimpleFeatureCollection features,
                                               String aggAttribute,
                                               Set<AggregateProcess.AggregationFunction> functions,
                                               List<String> groupByAttributes,
                                               Boolean singlePass,
                                               ProgressListener progressListener)
                                        throws ProcessException,
                                               IOException

Throws:

ProcessException

IOException

execute

public AggregateProcess.Results execute(SimpleFeatureCollection features,
                                        String aggAttribute,
                                        Set<AggregateProcess.AggregationFunction> functions,
                                        boolean singlePass,
                                        ProgressListener progressListener)
                                 throws ProcessException,
                                        IOException

Throws:

ProcessException

IOException

execute

public AggregateProcess.Results execute(SimpleFeatureCollection features,
                                        String aggAttribute,
                                        Set<AggregateProcess.AggregationFunction> functions,
                                        boolean singlePass,
                                        List<String> groupByAttributes,
                                        ProgressListener progressListener)
                                 throws ProcessException,
                                        IOException

Throws:

ProcessException

IOException