FeatureManager
Class WindsurfFeatureManagerMySQL

java.lang.Object
  FeatureManager.FeatureManager
      FeatureManager.FeatureManagerMySQL
          FeatureManager.WindsurfFeatureManagerMySQL

public class WindsurfFeatureManagerMySQL
extends FeatureManagerMySQL

Implements the MySQL-based Feature Manager for Windsurf.

Field Summary

Fields inherited from class FeatureManager.FeatureManagerMySQL

conn, q, rs, table

Fields inherited from class FeatureManager.FeatureManager

time

Constructor Summary

WindsurfFeatureManagerMySQL(java.lang.String usr, java.lang.String pwd, java.lang.String db, java.lang.String table)
Basic constructor for a local database.

WindsurfFeatureManagerMySQL(java.lang.String host, java.lang.String port, java.lang.String usr, java.lang.String pwd, java.lang.String db, java.lang.String table)
Basic constructor for a remote database.

Method Summary

int	contains(Image i) Checks whether the given image is already contained in the database.
protected Image	createImage(ImageID id, java.sql.ResultSet rs) Creates a new Image given the image ID.
protected java.lang.String	imageFeatures2String(Image image) Generates a string containing the image features.
protected Image	loadFeaturesNext() Loads the features of the next image from the features DB.

Methods inherited from class FeatureManager.FeatureManagerMySQL

closeConnection, closeScan, contains, countDBImages, countDBRegions, countRegions, countRegions, createConnection, createScan, loadFeatures, loadRegion, nextID, saveFeatures

Methods inherited from class FeatureManager.FeatureManager

getTime, load, loadNext, resetTime, save

Methods inherited from class java.lang.Object

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

Constructor Detail

WindsurfFeatureManagerMySQL

public WindsurfFeatureManagerMySQL(java.lang.String usr,
                                   java.lang.String pwd,
                                   java.lang.String db,
                                   java.lang.String table)

Basic constructor for a local database.

Parameters:

usr - Username for the DB connection.

pwd - Password for the DB connection.

db - Name of the features database.

table - Name of the features table.

WindsurfFeatureManagerMySQL

public WindsurfFeatureManagerMySQL(java.lang.String host,
                                   java.lang.String port,
                                   java.lang.String usr,
                                   java.lang.String pwd,
                                   java.lang.String db,
                                   java.lang.String table)

Basic constructor for a remote database.

Parameters:

host - Host name for the DB connection.

port - Port name for the DB connection.

usr - Username for the DB connection.

pwd - Password for the DB connection.

db - Name of the features database.

table - Name of the features table.

Method Detail

createImage

protected Image createImage(ImageID id,
                            java.sql.ResultSet rs)

Creates a new Image given the image ID.

Specified by:

createImage in class FeatureManagerMySQL

Parameters:

id - Image ID.

rs - The result of the issued query.

Returns:

The new WindsurfImage.

loadFeaturesNext

protected Image loadFeaturesNext()

Loads the features of the next image from the features DB.

Specified by:

loadFeaturesNext in class FeatureManager

Returns:

WindsurfImage object containing loaded features (null if no next image exists).

imageFeatures2String

protected java.lang.String imageFeatures2String(Image image)

Generates a string containing the image features.

Specified by:

imageFeatures2String in class FeatureManagerMySQL

Parameters:

image - The image whose features are to be saved.

Returns:

A string containing the features of the image.

contains

public int contains(Image i)

Checks whether the given image is already contained in the database.

Parameters:

i - Requested image.

Returns:

A number representing the ID of an existing image equal to the given image (if such image exists), a negative number otherwise.