Package io.github.sebasbaumh.postgis

Class MultiGeometry<T extends Geometry>

java.lang.Object

io.github.sebasbaumh.postgis.Geometry

io.github.sebasbaumh.postgis.MultiGeometry<T>

Type Parameters:

T - Geometry type

All Implemented Interfaces:

java.io.Serializable, java.lang.Iterable<T>

Direct Known Subclasses:

GeometryCollection, MultiCurve, MultiLineString, MultiPoint, MultiPolygon, MultiSurface

@NonNullByDefault
public abstract class MultiGeometry<T extends Geometry>
extends Geometry
implements java.lang.Iterable<T>

Base class for multi geometries.

Author:

Sebastian Baumhekel

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected java.util.ArrayList<T>	subgeoms	Sub geometries.

Fields inherited from class io.github.sebasbaumh.postgis.Geometry

UNKNOWN_SRID

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	MultiGeometry(int type)	Constructs an instance with the specified type.
protected	MultiGeometry(int type, java.lang.Iterable<? extends T> geoms)	Constructs an instance with the specified type and geometries.

Method Summary

Modifier and Type	Method	Description
void	add(T geom)	Adds a geometry.
void	addAll(java.lang.Iterable<? extends T> geoms)	Adds all given geometries.
boolean	checkConsistency()	Do some internal consistency checks on the geometry.
boolean	equals(java.lang.Object other)	java.lang.Object equals implementation
java.lang.Iterable<Point>	getCoordinates()	Gets the coordinates of this Geometry.
java.util.Collection<T>	getGeometries()	Gets all geometries.
int	getNumberOfCoordinates()	Gets the number of coordinates of this Geometry.
int	hashCode()
boolean	hasMeasure()	Returns whether we have a measure (4th dimension)
boolean	is3d()	Checks if this Geometry is 3d.
boolean	isEmpty()	Checks, if there are no sub-geometries.
java.util.Iterator<T>	iterator()
void	setSrid(int srid)	Recursively sets the srid on this geometry and all contained subgeometries
int	size()	Gets the number of contained geometries.

Methods inherited from class io.github.sebasbaumh.postgis.Geometry

getDimension, getSrid, getType, numPoints

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

subgeoms

protected final java.util.ArrayList<T extends Geometry> subgeoms

Sub geometries.

Constructor Detail

MultiGeometry

protected MultiGeometry(int type)

Constructs an instance with the specified type.

Parameters:

type - int value corresponding to the geometry type

MultiGeometry

protected MultiGeometry(int type,
                        java.lang.Iterable<? extends T> geoms)

Constructs an instance with the specified type and geometries.

Parameters:

type - int value corresponding to the geometry type

geoms - geometries

Method Detail

add

public void add(T geom)

Adds a geometry.

Parameters:

geom - geometry

addAll

public void addAll(java.lang.Iterable<? extends T> geoms)

Adds all given geometries.

Parameters:

geoms - geometries

checkConsistency

public boolean checkConsistency()

Description copied from class: Geometry

Do some internal consistency checks on the geometry. Currently, all Geometries must have a valid dimension (2 or 3) and a valid type. Composed geometries must have all equal SRID, dimensionality and measures, as well as that they do not contain NULL or inconsistent subgeometries. BinaryParser and WKTParser should only generate consistent geometries. BinaryWriter may produce invalid results on inconsistent geometries.

Overrides:

checkConsistency in class Geometry

Returns:

true if all checks are passed.

equals

public boolean equals(@Nullable
                      java.lang.Object other)

Description copied from class: Geometry

java.lang.Object equals implementation

Overrides:

equals in class Geometry

Parameters:

other - geometry to compare

Returns:

true if equal, false otherwise

getCoordinates

public java.lang.Iterable<Point> getCoordinates()

Description copied from class: Geometry

Gets the coordinates of this Geometry.

Specified by:

getCoordinates in class Geometry

Returns:

coordinates

getGeometries

public java.util.Collection<T> getGeometries()

Gets all geometries.

Returns:

geometries

getNumberOfCoordinates

public int getNumberOfCoordinates()

Description copied from class: Geometry

Gets the number of coordinates of this Geometry.

Specified by:

getNumberOfCoordinates in class Geometry

Returns:

number of coordinates

hashCode

public int hashCode()

Overrides:

hashCode in class Geometry

hasMeasure

public boolean hasMeasure()

Description copied from class: Geometry

Returns whether we have a measure (4th dimension)

Specified by:

hasMeasure in class Geometry

Returns:

true if the geometry has a measure, false otherwise

is3d

public boolean is3d()

Description copied from class: Geometry

Checks if this Geometry is 3d.

Specified by:

is3d in class Geometry

Returns:

true on success, else false

isEmpty

public boolean isEmpty()

Checks, if there are no sub-geometries.

Specified by:

isEmpty in class Geometry

Returns:

true on success, else false

iterator

public java.util.Iterator<T> iterator()

Specified by:

iterator in interface java.lang.Iterable<T extends Geometry>

setSrid

public void setSrid(int srid)

Description copied from class: Geometry

Recursively sets the srid on this geometry and all contained subgeometries

Overrides:

setSrid in class Geometry

Parameters:

srid - the SRID for this geometry

size

public int size()

Gets the number of contained geometries.

Returns:

number of contained geometries