Package edu.gsu.cs.dmlab.databases

Class SingleFeatureDBConnection

java.lang.Object

edu.gsu.cs.dmlab.databases.SingleFeatureDBConnection

All Implemented Interfaces:

IFeatureDBConnection

public class SingleFeatureDBConnection
extends Object
implements IFeatureDBConnection

This class is used to access feature descriptors ranked by some ranking method and inserted into the database by the SingleFeatureDBCreator.

Author:

Dustin Kempton, Data Mining Lab, Georgia State University

Constructor Summary

Constructors

Constructor	Description
SingleFeatureDBConnection(DataSource dsourc)	Constructor

Method Summary

Modifier and Type	Method	Description
boolean	featureTableExists(EventType type)	Checks to see if the feature table for the particular event type exists.
void	finalize()
ImageDBWaveParamPair[]	getBestFeatures(EventType type, int num)	Selects the top features in the database and returns the array of their descriptors

Methods inherited from class java.lang.Object

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

Constructor Detail

SingleFeatureDBConnection

public SingleFeatureDBConnection(DataSource dsourc)

Constructor

Parameters:

dsourc - The database connection object that we use to query the database.

Method Detail

finalize

public void finalize()
              throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable

getBestFeatures

public ImageDBWaveParamPair[] getBestFeatures(EventType type,
                                              int num)
                                       throws SQLException

Description copied from interface: IFeatureDBConnection

Selects the top features in the database and returns the array of their descriptors

Specified by:

getBestFeatures in interface IFeatureDBConnection

Parameters:

type - The event type to select features for

num - The number of features to return

Returns:

The array of the top features in the database

Throws:

SQLException - If an error occurs

featureTableExists

public boolean featureTableExists(EventType type)
                           throws SQLException

Description copied from interface: IFeatureDBConnection

Checks to see if the feature table for the particular event type exists.

Specified by:

featureTableExists in interface IFeatureDBConnection

Parameters:

type - The event type to check for.

Returns:

True if exists, else false.

Throws:

SQLException - If an error occurs