de.fhpotsdam.unfolding.data
Class Feature

java.lang.Object
  de.fhpotsdam.unfolding.data.Feature

Direct Known Subclasses:

MultiFeature, PointFeature, ShapeFeature

public class Feature
extends java.lang.Object

A feature stores one or more locations, its type, and additional data properties.

Nested Class Summary

static class

Feature.FeatureType

Field Summary

java.util.HashMap<java.lang.String,java.lang.Object>

properties Stores data properties.

Constructor Summary

Feature(Feature.FeatureType type)
Creates a feature for a specific type.

Method Summary

java.lang.Object	addProperty(java.lang.String key, java.lang.Object value) Adds a property to this feature.
java.lang.String	getId() Returns the ID of this feature.
java.util.HashMap<java.lang.String,java.lang.Object>	getProperties() Returns all data properties.
java.lang.Object	getProperty(java.lang.String key) Returns a property for the key.
java.lang.String	getStringProperty(java.lang.String key) Returns the value of a String property.
Feature.FeatureType	getType() Returns the type of this feature.
void	putProperty(java.lang.String key, java.lang.Object value) Adds a property to this feature.
void	setId(java.lang.String id) Sets the ID of this feature.
void	setProperties(java.util.HashMap<java.lang.String,java.lang.Object> properties) Sets all properties.

Methods inherited from class java.lang.Object

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

Field Detail

properties

public java.util.HashMap<java.lang.String,java.lang.Object> properties

Stores data properties. A feature does not know about the semantics though, this has to be done in the display.

Constructor Detail

Feature

public Feature(Feature.FeatureType type)

Creates a feature for a specific type.

Parameters:

type - The type of this feature.

Method Detail

getType

public Feature.FeatureType getType()

Returns the type of this feature.

Returns:

The type.

getProperties

public java.util.HashMap<java.lang.String,java.lang.Object> getProperties()

Returns all data properties.

Returns:

The properties.

getProperty

public java.lang.Object getProperty(java.lang.String key)

Returns a property for the key.

Parameters:

key - The key of the property.

Returns:

A property or null if not found.

addProperty

public java.lang.Object addProperty(java.lang.String key,
                                    java.lang.Object value)

Adds a property to this feature.

Parameters:

key - The key of this property.

value - The value of this property.

putProperty

public void putProperty(java.lang.String key,
                        java.lang.Object value)

Adds a property to this feature.

Parameters:

key - The key of this property.

value - The value of this property.

getStringProperty

public java.lang.String getStringProperty(java.lang.String key)

Returns the value of a String property. This only returns a non-null value if the value is a String. For String representations of other objects use getProperty(String) and convert it yourself.

Parameters:

key - The key of the property.

Returns:

The value as String, or null if not found or if property is not a String.

setProperties

public void setProperties(java.util.HashMap<java.lang.String,java.lang.Object> properties)

Sets all properties. All previously existing ones will be removed.

Parameters:

properties - The data properties.

getId

public java.lang.String getId()

Returns the ID of this feature.

Returns:

The ID.

setId

public void setId(java.lang.String id)

Sets the ID of this feature.

Parameters:

id - The ID.