org.postgresql.geometric

Class PGbox

java.lang.Object

org.postgresql.util.PGobject

org.postgresql.geometric.PGbox

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, PGBinaryObject

public class PGbox
extends PGobject
implements PGBinaryObject, java.io.Serializable, java.lang.Cloneable

This represents the box datatype within org.postgresql.

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
PGbox() Required constructor.
PGbox(double x1, double y1, double x2, double y2)
PGbox(PGpoint p1, PGpoint p2)
PGbox(java.lang.String s)

Method Summary

Modifier and Type	Method and Description
java.lang.Object	clone() This must be overidden to allow the object to be cloned.
boolean	equals(java.lang.Object obj) This must be overidden to allow comparisons of objects.
java.lang.String	getValue() This must be overidden, to return the value of the object, in the form required by org.postgresql.
int	hashCode() Compute hash.
int	lengthInBytes() This method is called to return the number of bytes needed to store this object in the binary form required by org.postgresql.
void	setByteValue(byte[] b, int offset) This method is called to set the value of this object.
void	setValue(java.lang.String value) This method sets the value of this object.
void	toBytes(byte[] bytes, int offset) This method is called the to store the value of the object, in the binary form required by org.postgresql.

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

PGbox

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

Parameters:

x1 - first x coordinate

y1 - first y coordinate

x2 - second x coordinate

y2 - second y coordinate

PGbox

public PGbox(PGpoint p1,
             PGpoint p2)

Parameters:

p1 - first point

p2 - second point

PGbox

public PGbox(java.lang.String s)
      throws java.sql.SQLException

Parameters:

s - Box definition in PostgreSQL syntax

Throws:

java.sql.SQLException - if definition is invalid

PGbox

public PGbox()

Required constructor.

Method Detail

setValue

public void setValue(java.lang.String value)
              throws java.sql.SQLException

This method sets the value of this object. It should be overidden, but still called by subclasses.

Overrides:

setValue in class PGobject

Parameters:

value - a string representation of the value of the object

Throws:

java.sql.SQLException - thrown if value is invalid for this type

setByteValue

public void setByteValue(byte[] b,
                         int offset)

Description copied from interface: PGBinaryObject

This method is called to set the value of this object.

Specified by:

setByteValue in interface PGBinaryObject

Parameters:

b - Definition of this point in PostgreSQL's binary syntax

offset - the offset in the byte array where object data starts

equals

public boolean equals(java.lang.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 boxes are identical

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)

clone

public java.lang.Object clone()
                       throws java.lang.CloneNotSupportedException

Description copied from class: PGobject

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

Overrides:

clone in class PGobject

Throws:

java.lang.CloneNotSupportedException

getValue

public java.lang.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 PGbox in the syntax expected by org.postgresql

lengthInBytes

public int lengthInBytes()

Description copied from interface: PGBinaryObject

This method is called to return the number of bytes needed to store this object in the binary form required by org.postgresql.

Specified by:

lengthInBytes in interface PGBinaryObject

Returns:

the number of bytes needed to store this object

toBytes

public void toBytes(byte[] bytes,
                    int offset)

Description copied from interface: PGBinaryObject

This method is called the to store the value of the object, in the binary form required by org.postgresql.

Specified by:

toBytes in interface PGBinaryObject

Parameters:

bytes - the array to store the value, it is guaranteed to be at lest PGBinaryObject.lengthInBytes() in size.

offset - the offset in the byte array where object must be stored