Package org.postgis

Class PGboxbase

java.lang.Object

org.postgresql.util.PGobject

org.postgis.PGboxbase

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

PGbox2d, PGbox3d

public abstract class PGboxbase
extends org.postgresql.util.PGobject

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected Point	llb	The lower left bottom corner of the box.
protected Point	urt	The upper right top corner of the box.

Fields inherited from class org.postgresql.util.PGobject

type, value

Constructor Summary

Constructors

Constructor	Description
PGboxbase()
PGboxbase(String value)
PGboxbase(Point llb, Point urt)

Method Summary

Modifier and Type	Method	Description
Object	clone()
protected static boolean	compareLazyDim(Point first, Point second)	Compare two coordinates with lazy dimension checking.
boolean	equals(Object other)
Point	getLLB()	Returns the lower left bottom corner of the box as a Point object
abstract String	getPGtype()	The Postgres type we have (same construct as getPrefix())
abstract String	getPrefix()	The Prefix we have in WKT rep.
Point	getURT()	Returns the upper right top corner of the box as a Point object
String	getValue()
protected abstract PGboxbase	newInstance()	Obtain a new instance of a PGboxbase We could have used this.getClass().newInstance() here, but this forces us dealing with InstantiationException and IllegalAccessException.
void	setValue(String value)
String	toString()	Unlike geometries, toString() does _not_ contain the srid, as server-side PostGIS cannot parse this.

Methods inherited from class org.postgresql.util.PGobject

getType, hashCode, setType

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

llb

protected Point llb

The lower left bottom corner of the box.

urt

protected Point urt

The upper right top corner of the box.

Constructor Detail

PGboxbase

public PGboxbase()

PGboxbase

public PGboxbase(Point llb,
                 Point urt)

PGboxbase

public PGboxbase(String value)
          throws SQLException

Throws:

SQLException

Method Detail

getPrefix

public abstract String getPrefix()

The Prefix we have in WKT rep. I use an abstract method here so we do not need to replicate the String object in every instance.

Returns:

the prefix, as a string

getPGtype

public abstract String getPGtype()

The Postgres type we have (same construct as getPrefix())

Returns:

String containing the name of the type for this box.

setValue

public void setValue(String value)
              throws SQLException

Overrides:

setValue in class org.postgresql.util.PGobject

Throws:

SQLException

getValue

public String getValue()

Overrides:

getValue in class org.postgresql.util.PGobject

toString

public String toString()

Unlike geometries, toString() does _not_ contain the srid, as server-side PostGIS cannot parse this.

Overrides:

toString in class org.postgresql.util.PGobject

Returns:

String representation of this box

getLLB

public Point getLLB()

Returns the lower left bottom corner of the box as a Point object

Returns:

lower left bottom corner of this box

getURT

public Point getURT()

Returns the upper right top corner of the box as a Point object

Returns:

upper right top corner of this box

equals

public boolean equals(Object other)

Overrides:

equals in class org.postgresql.util.PGobject

compareLazyDim

protected static boolean compareLazyDim(Point first,
                                        Point second)

Compare two coordinates with lazy dimension checking. As the Server always returns Box3D with three dimensions, z==0 equals dimensions==2

Parameters:

first - First of two points to be compared

second - Second of two points to be compared

Returns:

true if the points are the same, false otherwise

clone

public Object clone()

Overrides:

clone in class org.postgresql.util.PGobject

newInstance

protected abstract PGboxbase newInstance()

Obtain a new instance of a PGboxbase We could have used this.getClass().newInstance() here, but this forces us dealing with InstantiationException and IllegalAccessException. Due to the PGObject.clone() brokennes that does not allow clone() to throw CloneNotSupportedException, we cannot even pass this exceptions down to callers in a sane way.

Returns:

a new instance of PGboxbase