[Javamatch-cvs] javamatch/docs/website/resources/prevayler MatchFrame.java,NONE,1.1 build.xml,NONE,1.1 screenshot.png,NONE,1.1

[Walter v. I. <it...@us...>]

Update of /cvsroot/javamatch/javamatch/docs/website/resources/prevayler
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv20888/resources/prevayler

Added Files:
	MatchFrame.java build.xml screenshot.png 
Log Message:
Add chapter "integration with Prevayler"

--- NEW FILE: MatchFrame.java ---
package org.prevayler.demos.demo2.gui;

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.table.*;

import net.sourceforge.javamatch.engine.*;
import net.sourceforge.javamatch.query.*;

import org.prevayler.Prevayler;
import org.prevayler.demos.demo2.business.*;

/**
 * Class MatchFrame shows the results of matching the data in the bank demo 
 * application
 */
class MatchFrame extends JInternalFrame {
    private Prevayler prevayler;
    private JButton refreshButton;
    private JTable matchTable;
    private DefaultTableModel matchTableModel;

    /**
     * Creates a new MatchFrame, that uses the given Prevayler persistent storage
     * mechanism, and puts itself in the given parent container.
     */
    MatchFrame(Prevayler prevayler, Container container) {
        super("Interesting accounts");
        this.prevayler = prevayler;
        initUI();
        refreshTable();
        container.add(this);
        setVisible(true);
    }

    /**
     * Initializes the user interface
     */
    private void initUI() {
        setBounds(100,70,400,250);
        getContentPane().setLayout(new BorderLayout(0, 0));
        JPanel buttonPanel = new JPanel();
        buttonPanel.setLayout(new FlowLayout(FlowLayout.RIGHT, 0, 0));
        refreshButton = new JButton("Refresh");
        refreshButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent event) {
                refreshTable();
            }
        });
        buttonPanel.add(refreshButton);
        getContentPane().add(buttonPanel, BorderLayout.SOUTH);

        matchTableModel= new DefaultTableModel();
        matchTableModel.setColumnIdentifiers(new String[] {"Match", "Account", "Balance", "#Entries"});
        matchTable = new JTable(matchTableModel);
        getContentPane().add(new JScrollPane(matchTable), BorderLayout.CENTER);
    }

    /**
     * Refreshes the table that shows the top-10 matching results
     */
    private void refreshTable() {
        matchTableModel.setRowCount(0);
        Bank bank = (Bank)prevayler.prevalentSystem();
        java.util.List accounts = bank.accounts();

        try {
            // create the match engine
            MatchEngine matchEngine = new MatchEngine();

            // create the match query
            OrList query = new OrList();
            query.addMatchQuery(new Maximum("balance()"));
            query.addMatchQuery(new Maximum("transactionHistory().size()"));
    
            // execute the match query
            MatchResult matchResult = matchEngine.executeQuery(query, accounts);

            // retrieve matching results
            Iterator resultIterator = matchResult.getResultIterator();
            while (resultIterator.hasNext()) {
                ResultItem curResultItem = (ResultItem)resultIterator.next();
                Account matchedAccount = (Account)curResultItem.getMatchedObject();
                // create a row in the table that displays the matching results
                Object[] rowData = new Object[4];
                rowData[0] = new Float(curResultItem.getMatchValue());
                rowData[1] = matchedAccount;
                rowData[2] = new Long(matchedAccount.balance());
                rowData[3] = new Integer(matchedAccount.transactionHistory().size());
                matchTableModel.addRow(rowData);
            }
        } catch (MatchException me) {
            System.out.println(me);
        }
    }
}

--- NEW FILE: build.xml ---
<project name="prevayler" default="run">
    <property name="lib_junit" value="lib/junit3.8.1.jar"/>
    <property name="lib_logging" value="lib/commons-logging-1.0.3.jar"/>
    <property name="lib_skaringa" value="lib/skaringa-r2p6.jar"/>
    <property name="lib_javamatch" value="lib/javamatch.jar"/>
    <property name="lib" value="${lib_junit}:${lib_logging}:${lib_skaringa}:${lib_javamatch}"/>

    <target name="clean" description="Cleans up all generated stuff">
        <delete dir="generated" quiet="yes"/>
    </target>
    
    <target name="run" description="Runs the sample application">
        <antcall target="compile"/>
        <java
            classname="org.prevayler.demos.demo2.Main"
            classpath="generated/classes:${lib}"
            fork="true"
            dir="generated/classes"
            failonerror="true"/>
    </target>
    
    <target name="compile">
        <mkdir dir="generated/classes"/>
        <javac srcdir="src"
            destdir="generated/classes"
            classpath="${lib}"
            debug="true">
        </javac>
    </target>
</project>

--- NEW FILE: screenshot.png ---
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