edu.umn.cs.spatialHadoop.core

Class Partition

java.lang.Object

edu.umn.cs.spatialHadoop.core.Rectangle

edu.umn.cs.spatialHadoop.core.CellInfo

edu.umn.cs.spatialHadoop.core.Partition

All Implemented Interfaces:

Shape, TextSerializable, java.lang.Cloneable

public class Partition
extends CellInfo

Field Summary

Fields

Modifier and Type	Field and Description
java.lang.String	filename Name of the file that contains the data
long	recordCount Total number of records in this partition
long	size Total size of data in this partition in bytes (uncompressed)

Fields inherited from class edu.umn.cs.spatialHadoop.core.CellInfo

cellId

Fields inherited from class edu.umn.cs.spatialHadoop.core.Rectangle

x1, x2, y1, y2

Constructor Summary

Constructors

Constructor and Description
Partition()
Partition(Partition other)
Partition(java.lang.String filename, CellInfo cell)

Method Summary

Methods

Modifier and Type	Method and Description
Partition	clone() Returns a clone of this shape
void	draw(java.awt.Graphics g, double xscale, double yscale) Draws the shape to the given graphics and scale.
void	draw(java.awt.Graphics g, Rectangle fileMBR, int imageWidth, int imageHeight, double scale) Draws a shape to the given graphics.
boolean	equals(java.lang.Object obj)
void	expand(Partition p)
void	fromText(Text text) Retrieve information from the given text.
int	hashCode()
void	readFields(java.io.DataInput in)
Text	toText(Text text) Store current object as string in the given text appending text already there.
void	write(java.io.DataOutput out)

Methods inherited from class edu.umn.cs.spatialHadoop.core.CellInfo

compareTo, set, toString

Methods inherited from class edu.umn.cs.spatialHadoop.core.Rectangle

buffer, compareTo, contains, contains, contains, contains, distanceTo, expand, getCenterPoint, getHeight, getIntersection, getMaxDistance, getMaxDistanceTo, getMBR, getMinDistance, getMinDistanceTo, getWidth, invalidate, isIntersected, isValid, set, set, translate, union

Methods inherited from class java.lang.Object

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

Field Detail

filename

public java.lang.String filename

Name of the file that contains the data

recordCount

public long recordCount

Total number of records in this partition

size

public long size

Total size of data in this partition in bytes (uncompressed)

Constructor Detail

Partition

public Partition()

Partition

public Partition(java.lang.String filename,
         CellInfo cell)

Partition

public Partition(Partition other)

Method Detail

write

public void write(java.io.DataOutput out)
           throws java.io.IOException

Overrides:

write in class CellInfo

Throws:

java.io.IOException

readFields

public void readFields(java.io.DataInput in)
                throws java.io.IOException

Overrides:

readFields in class CellInfo

Throws:

java.io.IOException

toText

public Text toText(Text text)

Description copied from interface: TextSerializable

Store current object as string in the given text appending text already there.

Specified by:

toText in interface TextSerializable

Overrides:

toText in class CellInfo

fromText

public void fromText(Text text)

Description copied from interface: TextSerializable

Retrieve information from the given text.

Specified by:

fromText in interface TextSerializable

Overrides:

fromText in class CellInfo

clone

public Partition clone()

Description copied from interface: Shape

Returns a clone of this shape

Specified by:

clone in interface Shape

Overrides:

clone in class CellInfo

Returns:

hashCode

public int hashCode()

Overrides:

hashCode in class CellInfo

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class CellInfo

expand

public void expand(Partition p)

draw

public void draw(java.awt.Graphics g,
        Rectangle fileMBR,
        int imageWidth,
        int imageHeight,
        double scale)

Description copied from interface: Shape

Draws a shape to the given graphics.

Specified by:

draw in interface Shape

Overrides:

draw in class Rectangle

Parameters:

g - - the graphics or canvas to draw to

fileMBR - - the MBR of the file in which the shape is contained

imageWidth - - width of the image to draw

imageHeight - - height of the image to draw

scale - - the scale used to convert shape coordinates to image coordinates

draw

public void draw(java.awt.Graphics g,
        double xscale,
        double yscale)

Description copied from interface: Shape

Draws the shape to the given graphics and scale.

Specified by:

draw in interface Shape

Overrides:

draw in class Rectangle

Parameters:

g - - the graphics to draw the shape to.

xscale - - scale of the image x-axis in terms of pixels per points.

yscale - - scale of the image y-axis in terms of pixels per points.