unipg.gila.common.coordinatewritables

Class CoordinateWritable

java.lang.Object

unipg.gila.common.coordinatewritables.MiniCoordinateWritable

unipg.gila.common.coordinatewritables.CoordinateWritable

All Implemented Interfaces:

org.apache.hadoop.io.Writable

public class CoordinateWritable
extends MiniCoordinateWritable

This class models the vertex value.

Author:

Alessio Arleo

Field Summary

Fields

Modifier and Type	Field and Description
protected LongWritableSet	analyzed A set which contains all the ids of the vertices already taken into account.
protected float	fX The X component of the forces acting on the vertex.
protected float	fY The Y component of the forces acting on the vertex.
protected boolean	justReset A switch used to know if the vertex has been reset or not; it is used to check if whether to include the attractive forces or not at the next propagator step.
protected float	shortestEdge The shortest incident edge.

Fields inherited from class unipg.gila.common.coordinatewritables.MiniCoordinateWritable

component, oneEdges, x, y

Constructor Summary

Constructors

Constructor and Description
CoordinateWritable()
CoordinateWritable(java.lang.Float x, java.lang.Float y, int component)
CoordinateWritable(float x, float y, org.json.JSONArray oEs, int component)

Method Summary

Methods

Modifier and Type	Method and Description
void	addToForceVector(float[] force) Adds to the internal force vector the values in the given 2-dimensional array.
void	analyze(org.apache.hadoop.io.LongWritable neigh) Set a new vertex as analyzed.
float[]	getCoordinates()
float[]	getForceVector()
float	getShortestEdge()
boolean	hasBeenReset() Returns true if the vertex has been reset (resetAnalyzed has been called during the last superstep).
boolean	isAnalyzed(org.apache.hadoop.io.Writable neigh)
void	readFields(java.io.DataInput in)
void	resetAnalyzed() At the end of a drawing cycle (seeding + propagation) this method resets the Analyzed set.
void	resetForceVector()
void	setAsMoving() When called, it means that for that vertex attractive forces have been already computed.
void	setCoordinates(float x, float y)
void	setShortestEdge(float shortestEdge)
void	write(java.io.DataOutput out)

Methods inherited from class unipg.gila.common.coordinatewritables.MiniCoordinateWritable

getComponent, getOneDegreeVertices, getOneDegreeVerticesQuantity

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

analyzed

protected LongWritableSet analyzed

A set which contains all the ids of the vertices already taken into account.

fX

protected float fX

The X component of the forces acting on the vertex.

fY

protected float fY

The Y component of the forces acting on the vertex.

justReset

protected boolean justReset

A switch used to know if the vertex has been reset or not; it is used to check if whether to include the attractive forces or not at the next propagator step.

shortestEdge

protected float shortestEdge

The shortest incident edge.

Constructor Detail

CoordinateWritable

public CoordinateWritable()

CoordinateWritable

public CoordinateWritable(java.lang.Float x,
                  java.lang.Float y,
                  int component)

CoordinateWritable

public CoordinateWritable(float x,
                  float y,
                  org.json.JSONArray oEs,
                  int component)
                   throws org.json.JSONException

Throws:

org.json.JSONException

Method Detail

addToForceVector

public void addToForceVector(float[] force)

Adds to the internal force vector the values in the given 2-dimensional array.

Parameters:

force - The array to add to the internal force array.

analyze

public void analyze(org.apache.hadoop.io.LongWritable neigh)

Set a new vertex as analyzed.

Parameters:

neigh - The vertex id to be set as analyzed.

getCoordinates

public float[] getCoordinates()

Overrides:

getCoordinates in class MiniCoordinateWritable

getForceVector

public float[] getForceVector()

getShortestEdge

public float getShortestEdge()

hasBeenReset

public boolean hasBeenReset()

Returns true if the vertex has been reset (resetAnalyzed has been called during the last superstep).

Returns:

true if the vertex has been reset in the last superstep.

isAnalyzed

public boolean isAnalyzed(org.apache.hadoop.io.Writable neigh)

readFields

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

Specified by:

readFields in interface org.apache.hadoop.io.Writable

Overrides:

readFields in class MiniCoordinateWritable

Throws:

java.io.IOException

resetAnalyzed

public void resetAnalyzed()

At the end of a drawing cycle (seeding + propagation) this method resets the Analyzed set.

resetForceVector

public void resetForceVector()

setAsMoving

public void setAsMoving()

When called, it means that for that vertex attractive forces have been already computed.

setCoordinates

public void setCoordinates(float x,
                  float y)

Overrides:

setCoordinates in class MiniCoordinateWritable

setShortestEdge

public void setShortestEdge(float shortestEdge)

write

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

Specified by:

write in interface org.apache.hadoop.io.Writable

Overrides:

write in class MiniCoordinateWritable

Throws:

java.io.IOException