org.orbisgis.legend.structure.recode

Class KeysRetriever<U>

java.lang.Object

org.orbisgis.legend.structure.recode.KeysRetriever<U>

All Implemented Interfaces:

CategorizedParameterVisitor, ParameterVisitor, RecodedParameterVisitor

public class KeysRetriever<U>
extends Object
implements RecodedParameterVisitor, CategorizedParameterVisitor

Concatenate the keys used in all the visited RecodedLegend or CategorizedLegend. Note that this class has a parameter that must be set according to where it will be used. That means if you intend to use it on a RecodedLegend, the parameter must be String, and it must be Double for a CategorizedLegend. If you don't follow this rule, you'll face ClassCastExceptions.

Author:

alexis

Constructor Summary

Constructors

Constructor and Description
KeysRetriever() Default constructor.
KeysRetriever(Comparator<U> comp) Builds a new KeysRetriever instance whose inner sorted set is sorted using comp.

Method Summary

Methods

Modifier and Type	Method and Description
TreeSet<U>	getKeys() Gets the gathered keys.
void	visit(CategorizedLegend legend) Visit the given CategorizedLegend.
void	visit(org.orbisgis.legend.structure.recode.RecodedLegend legend) Visit the given RecodedLegend.

Methods inherited from class java.lang.Object

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

Constructor Detail

KeysRetriever

public KeysRetriever()

Default constructor.

KeysRetriever

public KeysRetriever(Comparator<U> comp)

Builds a new KeysRetriever instance whose inner sorted set is sorted using comp.

Parameters:

comp - The comparator we want to use.

Method Detail

visit

public void visit(org.orbisgis.legend.structure.recode.RecodedLegend legend)

Description copied from interface: RecodedParameterVisitor

Visit the given RecodedLegend. It's the intelligent part of the visitor implementation.

Specified by:

visit in interface RecodedParameterVisitor

visit

public void visit(CategorizedLegend legend)

Description copied from interface: CategorizedParameterVisitor

Visit the given CategorizedLegend. It's the intelligent part of the visitor implementation.

Specified by:

visit in interface CategorizedParameterVisitor

getKeys

public TreeSet<U> getKeys()

Gets the gathered keys.

Returns:

The gathered keys in a Set.