org.postgresql.geometric

Class PGlseg

java.lang.Object

org.postgresql.util.PGobject

org.postgresql.geometric.PGlseg

All Implemented Interfaces:

Serializable, Cloneable

public class PGlseg
extends PGobject
implements Serializable, Cloneable

This implements a lseg (line segment) consisting of two points.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
PGpoint[]	point These are the two points.

Fields inherited from class org.postgresql.util.PGobject

type, value

Constructor Summary

Constructors

Constructor and Description
PGlseg() required by the driver.
PGlseg(double x1, double y1, double x2, double y2)
PGlseg(PGpoint p1, PGpoint p2)
PGlseg(String s)

Method Summary

Modifier and Type	Method and Description
Object	clone() This must be overidden to allow the object to be cloned.
boolean	equals(Object obj) This must be overidden to allow comparisons of objects.
String	getValue() This must be overidden, to return the value of the object, in the form required by org.postgresql.
int	hashCode() Compute hash.
void	setValue(String s) This method sets the value of this object.

Methods inherited from class org.postgresql.util.PGobject

getType, setType, toString

Methods inherited from class java.lang.Object

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

Field Detail

point

public PGpoint[] point

These are the two points.

Constructor Detail

PGlseg

public PGlseg(double x1,
              double y1,
              double x2,
              double y2)

Parameters:

x1 - coordinate for first point

y1 - coordinate for first point

x2 - coordinate for second point

y2 - coordinate for second point

PGlseg

public PGlseg(PGpoint p1,
              PGpoint p2)

Parameters:

p1 - first point

p2 - second point

PGlseg

public PGlseg(String s)
       throws SQLException

Parameters:

s - definition of the line segment in PostgreSQL's syntax.

Throws:

SQLException - on conversion failure

PGlseg

public PGlseg()

required by the driver.

Method Detail

setValue

public void setValue(String s)
              throws SQLException

Description copied from class: PGobject

This method sets the value of this object. It must be overridden.

Overrides:

setValue in class PGobject

Parameters:

s - Definition of the line segment in PostgreSQL's syntax

Throws:

SQLException - on conversion failure

equals

public boolean equals(Object obj)

Description copied from class: PGobject

This must be overidden to allow comparisons of objects.

Overrides:

equals in class PGobject

Parameters:

obj - Object to compare with

Returns:

true if the two line segments are identical

See Also:

Object.hashCode(), HashMap

hashCode

public int hashCode()

Description copied from class: PGobject

Compute hash. As equals() use only value. Return the same hash for the same value.

Overrides:

hashCode in class PGobject

Returns:

Value hashcode, 0 if value is null Objects.hashCode(Object)

See Also:

Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)

clone

public Object clone()
             throws CloneNotSupportedException

Description copied from class: PGobject

This must be overidden to allow the object to be cloned.

Overrides:

clone in class PGobject

Returns:

a clone of this instance.

Throws:

CloneNotSupportedException - if the object's class does not support the Cloneable interface. Subclasses that override the clone method can also throw this exception to indicate that an instance cannot be cloned.

See Also:

Cloneable

getValue

public String getValue()

Description copied from class: PGobject

This must be overidden, to return the value of the object, in the form required by org.postgresql.

Overrides:

getValue in class PGobject

Returns:

the PGlseg in the syntax expected by org.postgresql