org.opengis.layer.source

Interface LayerSource

public interface LayerSource

Provides Layers to a manager. Layers are the base unit in a Table of Contents, which could be used to provide a human-readable visualization of the data available to add to a rendered visualization. A LayerSource could be capable of retrieving features from given feature stores using a given filter and creating the necessary feature layer. Other LayerSource implementations may connect to some other data source and produce graphics to be owned by the produced layers.

Since:

GeoAPI 2.0

Method Summary

Modifier and Type	Method and Description
InternationalString	getDescription() Description of this type of LayerSource.
InternationalString	getDisplayName() Display name used to communicate this LayerSource to end users.
java.net.URI	getIcon() Icon representing this type of LayerSource.
Layer	getLayer(java.lang.String name) Gets the named Layer.
java.util.List<Layer>	getLayers() Returns a List of Layers provided by this LayerSource.

Method Detail

getIcon

java.net.URI getIcon()

Icon representing this type of LayerSource.

Returns:

URI to a icon (GIF or PNG) representing this layer source.

getDisplayName

InternationalString getDisplayName()

Display name used to communicate this LayerSource to end users.

getDescription

InternationalString getDescription()

Description of this type of LayerSource.

getLayer

Layer getLayer(java.lang.String name)
        throws java.io.IOException,
               LayerException

Gets the named Layer.

Parameters:

name - the id of the Layer.

Throws:

java.io.IOException - if there is an IO problem getting the named Layer

LayerException - if there is any other problem getting the named Layer

getLayers

java.util.List<Layer> getLayers()
                         throws java.io.IOException,
                                LayerException

Returns a List of Layers provided by this LayerSource. This List should not be a live List: modifying the returned List (if modifiable) should not modify this LayerSource's Layers.

Returns:

a List of Layers

Throws:

java.io.IOException - if there is an IO problem getting the Layers

LayerException - if there is any other problem getting the named Layer