org.gvsig.fmap.geom.type
Interface GeometryType

All Known Implementing Classes:

DefaultGeometryType

public interface GeometryType

This class represents the type of a geometry. All the geometries has to have a type that can be retrieved using the Geometry#getGeometryType() method.

Author:

Jorge Piera

Method Summary

Geometry	create() This method creates a Geometry with the type specified by this class.
GeometryOperation	getGeometryOperation(int index) Get the operation for this geometry at a concrete position
int	getId()
String	getName()
int	getSubType()
int	getType()
boolean	isSubTypeOf(GeometryType geometryType) Check if a geometry subType inherits of other subType.
boolean	isSubTypeOf(int geometrySubType) Check if a geometry subType inherits of other subType.
boolean	isTypeOf(GeometryType geometryType) Check if a geometry type inherits of other type.
boolean	isTypeOf(int geometryType) Check if a geometry type inherits of other type.
void	setGeometryOperation(int index, GeometryOperation geomOp) Registers an operation for this geometry type.
String	toString()

Method Detail

getId

int getId()

Returns:

the identifier of the geometry type. This identifier is assigned by the GeometryManager in run time.

getName

String getName()

Returns:

the name of the geometry type.

getType

int getType()

Returns:

the type of the geometry. It is a constant value that has to be one of the values in Geometry.TYPES The type is an abstract representation of the object (Point, Curve...) but it is not a concrete representation (Point2D, Point3D...).

getSubType

int getSubType()

Returns:

the subtype of the geometry. It is a constant value that has to be one of the values in Geometry.SUBTYPES. The subtype represents a set of geometries with a dimensional relationship (2D, 3D, 2DM...)

isTypeOf

boolean isTypeOf(int geometryType)

Check if a geometry type inherits of other type. E.g: the super type of an arc could be a a curve, the super type of a circle could be a surface...

Parameters:

geometryType - the value of the Geometry.TYPES to check if is it super type

Returns:

if the the parameter is a super type of this geometry type

isSubTypeOf

boolean isSubTypeOf(int geometrySubType)

Check if a geometry subType inherits of other subType. E.g: the super Subtype of a geometry 3D could be a geometry 2D, because the 3D extends the behavior of a geometry 2D.

Parameters:

geometrySubType - the value of the Geometry.SUBTYPES to check if is it super subType

Returns:

if the the parameter is a super subType of this geometry type

isTypeOf

boolean isTypeOf(GeometryType geometryType)

Check if a geometry type inherits of other type. E.g: the super type of an arc could be a a curve, the super type of a circle could be a surface...

Parameters:

geometryType - the geometry type to check if is it super type

Returns:

if the the parameter is a super type of this geometry type

isSubTypeOf

boolean isSubTypeOf(GeometryType geometryType)

Check if a geometry subType inherits of other subType. E.g: the super Subtype of a geometry 3D could be a geometry 2D, because the 3D extends the behavior of a geometry 2D.

Parameters:

geometryType - the geometry type to check if is it super subtype

Returns:

if the the parameter is a super subType of this geometry type

create

Geometry create()
                throws CreateGeometryException

This method creates a Geometry with the type specified by this class. The geometry is empty, and all the internal attributes must be assigned to a value when the geometry has been created.

Returns:

A empty geometry

Throws:

InstantiationException - This exception is maybe thrown when the application is trying to instantiate the geometry

IllegalAccessException - This exception is maybe thrown when the application is trying to instantiate the geometry

CreateGeometryException

setGeometryOperation

void setGeometryOperation(int index,
                          GeometryOperation geomOp)

Registers an operation for this geometry type.

Parameters:

index -

geomOp -

getGeometryOperation

GeometryOperation getGeometryOperation(int index)

Get the operation for this geometry at a concrete position

Parameters:

index - The position of the operation

Returns:

A geometry operation

toString

String toString()

Overrides:

toString in class Object

Returns:

the geometry as a String