Package org.postgresql.geometric
Class PGpoint
- java.lang.Object
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- org.postgresql.util.PGobject
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- org.postgresql.geometric.PGpoint
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- All Implemented Interfaces:
java.io.Serializable
,java.lang.Cloneable
,PGBinaryObject
public class PGpoint extends PGobject implements PGBinaryObject, java.io.Serializable, java.lang.Cloneable
It maps to the point datatype in org.postgresql.
This implements a version of java.awt.Point, except it uses double to represent the coordinates.
- See Also:
- Serialized Form
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method 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
move(double x, double y)
Moves the point to the supplied coordinates.void
move(int x, int y)
Moves the point to the supplied coordinates.void
setByteValue(byte[] b, int offset)
This method is called to set the value of this object.void
setLocation(int x, int y)
Moves the point to the supplied coordinates.void
setLocation(java.awt.Point p)
Moves the point to the supplied java.awt.Point refer to java.awt.Point for description of this.void
setValue(java.lang.String s)
This method sets the value of this object.void
toBytes(byte[] b, int offset)
Populate the byte array with PGpoint in the binary syntax expected by org.postgresql.void
translate(double x, double y)
Translate the point by the supplied amount.void
translate(int x, int y)
Translate the point by the supplied amount.
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Constructor Detail
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PGpoint
public PGpoint(double x, double y)
- Parameters:
x
- coordinatey
- coordinate
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PGpoint
public PGpoint(java.lang.String value) throws java.sql.SQLException
This is called mainly from the other geometric types, when a point is embedded within their definition.- Parameters:
value
- Definition of this point in PostgreSQL's syntax- Throws:
java.sql.SQLException
- if something goes wrong
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PGpoint
public PGpoint()
Required by the driver.
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Method Detail
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setValue
public void setValue(java.lang.String s) throws java.sql.SQLException
Description copied from class:PGobject
This method sets the value of this object. It must be overridden.
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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 interfacePGBinaryObject
- Parameters:
b
- Definition of this point in PostgreSQL's binary syntaxoffset
- the offset in the byte array where object data starts
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equals
public boolean equals(java.lang.Object obj)
Description copied from class:PGobject
This must be overidden to allow comparisons of objects.
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hashCode
public int hashCode()
Description copied from class:PGobject
Compute hash. As equals() use only value. Return the same hash for the same value.
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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.
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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 interfacePGBinaryObject
- Returns:
- the number of bytes needed to store this object
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toBytes
public void toBytes(byte[] b, int offset)
Populate the byte array with PGpoint in the binary syntax expected by org.postgresql.- Specified by:
toBytes
in interfacePGBinaryObject
- Parameters:
b
- the array to store the value, it is guaranteed to be at lestPGBinaryObject.lengthInBytes()
in size.offset
- the offset in the byte array where object must be stored
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translate
public void translate(int x, int y)
Translate the point by the supplied amount.- Parameters:
x
- integer amount to add on the x axisy
- integer amount to add on the y axis
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translate
public void translate(double x, double y)
Translate the point by the supplied amount.- Parameters:
x
- double amount to add on the x axisy
- double amount to add on the y axis
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move
public void move(int x, int y)
Moves the point to the supplied coordinates.- Parameters:
x
- integer coordinatey
- integer coordinate
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move
public void move(double x, double y)
Moves the point to the supplied coordinates.- Parameters:
x
- double coordinatey
- double coordinate
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setLocation
public void setLocation(int x, int y)
Moves the point to the supplied coordinates. refer to java.awt.Point for description of this.- Parameters:
x
- integer coordinatey
- integer coordinate- See Also:
Point
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setLocation
public void setLocation(java.awt.Point p)
Moves the point to the supplied java.awt.Point refer to java.awt.Point for description of this.- Parameters:
p
- Point to move to- See Also:
Point
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