Learner.java

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package edu.tum.cs.bayesnets.learning;

import edu.ksu.cis.bnj.ver3.core.*;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import edu.tum.cs.bayesnets.core.BeliefNetworkEx;
import weka.core.Instance;
import edu.ksu.cis.bnj.ver3.core.BeliefNode;

public abstract class Learner {

        protected BeliefNetworkEx bn;
        
        protected BeliefNode[] nodes;
        
        protected boolean finished = false;
        
        public Learner(BeliefNetworkEx bn) {
                this.bn = bn;
                nodes = this.bn.bn.getNodes();
        }
        
        public Learner(BeliefNetwork bn) {
                this.bn = new BeliefNetworkEx(bn);
                nodes = this.bn.bn.getNodes();
        }
        
        public BeliefNetworkEx getNetwork() {
                return bn;
        }

        public void learn(String sqlQuery, String dbConnectString) throws Exception, SQLException {
                // connect to the database
        Connection conn = DriverManager.getConnection(dbConnectString);
      
        // execute the query
        Statement stmt = conn.createStatement(); 
        ResultSet rs = stmt.executeQuery(sqlQuery); 

                learn(rs);
        }

        public void finish() throws Exception {
                if(!finished) {
                        end_learning();
                        finished = true;
                }
        }
        
        protected abstract void end_learning() throws Exception;
        
        public abstract void learn(ResultSet rs) throws Exception;
}

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srldb
Author(s): Dominik Jain, Stefan Waldherr, Moritz Tenorth
autogenerated on Fri Jan 11 09:58:29 2013