Package org.geotools.feature

Class FeatureComparators

Object

FeatureComparators

public final class FeatureComparators
extends Object

A utility class for creating simple Comparators for Features.

Author:

Ian Schneider

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	FeatureComparators.Index	A Comparator which performs the comparison on attributes at a given index.
static class	FeatureComparators.Name	A Comparator which performs the comparison on attributes with a given name.

Field Summary

Fields

Modifier and Type	Field	Description
static final Comparator	BY_ID	A utility comparator for comparison by id.

Method Summary

Modifier and Type	Method	Description
static Comparator	byAttributeIndex(int idx)	Create a Comparator which compares Features by the attribute at the given index.
static Comparator	byAttributeName(String name)	Create a Comparator which compares Features by the attribute found at the given path.

Methods inherited from class Object

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

Field Details

BY_ID

public static final Comparator BY_ID

A utility comparator for comparison by id.

Method Details

byAttributeIndex

public static Comparator byAttributeIndex(int idx)

Create a Comparator which compares Features by the attribute at the given index. The attribute at the index MUST be Comparable. This will probably not work for heterogenous collections, UNLESS the classes at the given index are the same.

Parameters:

idx - The index to look up attributes at.

Returns:

A new Comparator.

byAttributeName

public static Comparator byAttributeName(String name)

Create a Comparator which compares Features by the attribute found at the given path. The attribute found MUST be Comparable. This will probably not work for heterogenous collections, UNLESS the attributes found are the same class.

Parameters:

name - The xpath to use while comparing.

Returns:

A new Comparator.