rosterbean.java

Sun公司的<J2EE Tutorial>范例代码

/*
 * Copyright (c) 2006 Sun Microsystems, Inc.  All rights reserved.  U.S.
 * Government Rights - Commercial software.  Government users are subject
 * to the Sun Microsystems, Inc. standard license agreement and
 * applicable provisions of the FAR and its supplements.  Use is subject
 * to license terms.
 *
 * This distribution may include materials developed by third parties.
 * Sun, Sun Microsystems, the Sun logo, Java and J2EE are trademarks
 * or registered trademarks of Sun Microsystems, Inc. in the U.S. and
 * other countries.
 *
 * Copyright (c) 2006 Sun Microsystems, Inc. Tous droits reserves.
 *
 * Droits du gouvernement americain, utilisateurs gouvernementaux - logiciel
 * commercial. Les utilisateurs gouvernementaux sont soumis au contrat de
 * licence standard de Sun Microsystems, Inc., ainsi qu'aux dispositions
 * en vigueur de la FAR (Federal Acquisition Regulations) et des
 * supplements a celles-ci.  Distribue par des licences qui en
 * restreignent l'utilisation.
 *
 * Cette distribution peut comprendre des composants developpes par des
 * tierces parties. Sun, Sun Microsystems, le logo Sun, Java et J2EE
 * sont des marques de fabrique ou des marques deposees de Sun
 * Microsystems, Inc. aux Etats-Unis et dans d'autres pays.
 */


package roster;

import java.util.*;
import javax.ejb.*;
import javax.ejb.*;
import javax.naming.*;
import util.*;
import team.*;


public class RosterBean implements SessionBean {
    private LocalPlayerHome playerHome = null;
    private LocalTeamHome teamHome = null;
    private LocalLeagueHome leagueHome = null;

    public RosterBean() {
    }

    // Player business methods
    public ArrayList testFinder(String parm1, String parm2, String parm3) {
        Debug.print("RosterBean testFinder");

        Collection players = null;

        try {
            players = playerHome.findByTest(parm1, parm2, parm3);
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return copyPlayersToDetails(players);
    }

    public void createPlayer(PlayerDetails details) {
        Debug.print("RosterBean createPlayer");

        try {
            LocalPlayer player =
                playerHome.create(details.getId(), details.getName(),
                    details.getPosition(), details.getSalary());
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }
    }

    public void addPlayer(String playerId, String teamId) {
        Debug.print("RosterBean addPlayer");

        try {
            LocalTeam team = teamHome.findByPrimaryKey(teamId);
            LocalPlayer player = playerHome.findByPrimaryKey(playerId);

            team.addPlayer(player);
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }
    }

    public void removePlayer(String playerId) {
        Debug.print("RosterBean removePlayer");

        try {
            LocalPlayer player = playerHome.findByPrimaryKey(playerId);

            player.remove();
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }
    }

    public void dropPlayer(String playerId, String teamId) {
        Debug.print("RosterBean dropPlayer");

        try {
            LocalPlayer player = playerHome.findByPrimaryKey(playerId);
            LocalTeam team = teamHome.findByPrimaryKey(teamId);

            team.dropPlayer(player);
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }
    }

    public PlayerDetails getPlayer(String playerId) {
        Debug.print("RosterBean getPlayer");

        PlayerDetails playerDetails = null;

        try {
            LocalPlayer player = playerHome.findByPrimaryKey(playerId);

            playerDetails = new PlayerDetails(playerId, player.getName(),
                    player.getPosition(), player.getSalary());
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return playerDetails;
    } // getPlayer

    public ArrayList getPlayersOfTeam(String teamId) {
        Debug.print("RosterBean getPlayersOfTeam");

        Collection players = null;

        try {
            LocalTeam team = teamHome.findByPrimaryKey(teamId);

            players = team.getPlayers();
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return copyPlayersToDetails(players);
    } // getPlayersOfTeam

    public ArrayList getPlayersOfTeamCopy(String teamId) {
        Debug.print("RosterBean getPlayersOfTeamCopy");

        ArrayList playersList = null;

        try {
            LocalTeam team = teamHome.findByPrimaryKey(teamId);

            playersList = team.getCopyOfPlayers();
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return playersList;
    } // getPlayersOfTeamCopy

    public ArrayList getTeamsOfLeague(String leagueId) {
        Debug.print("RosterBean getTeamsOfLeague");

        ArrayList detailsList = new ArrayList();
        Collection teams = null;

        try {
            LocalLeague league = leagueHome.findByPrimaryKey(leagueId);

            teams = league.getTeams();
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        Iterator i = teams.iterator();

        while (i.hasNext()) {
            LocalTeam team = (LocalTeam) i.next();
            TeamDetails details =
                new TeamDetails(team.getTeamId(), team.getName(), team.getCity());

            detailsList.add(details);
        }

        return detailsList;
    } // getTeamsOfLeague

    public ArrayList getPlayersByPosition(String position) {
        Debug.print("RosterBean getPlayersByPosition");

        Collection players = null;

        try {
            players = playerHome.findByPosition(position);
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return copyPlayersToDetails(players);
    } // getPlayersByPosition

    public ArrayList getPlayersByHigherSalary(String name) {
        Debug.print("RosterBean getPlayersByByHigherSalary");

        Collection players = null;

        try {
            players = playerHome.findByHigherSalary(name);
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return copyPlayersToDetails(players);
    } // getPlayersByHigherSalary

    public ArrayList getPlayersBySalaryRange(double low, double high) {
        Debug.print("RosterBean getPlayersBySalaryRange");

        Collection players = null;

        try {
            players = playerHome.findBySalaryRange(low, high);
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return copyPlayersToDetails(players);
    } // getPlayersBySalaryRange

    public ArrayList getPlayersByLeagueId(String leagueId) {
        Debug.print("RosterBean getPlayersByLeagueId");

        Collection players = null;

        try {
            LocalLeague league = leagueHome.findByPrimaryKey(leagueId);

            players = playerHome.findByLeague(league);
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return copyPlayersToDetails(players);
    } // getPlayersByLeagueId

    public ArrayList getPlayersBySport(String sport) {
        Debug.print("RosterBean getPlayersBySport");

        Collection players = null;

        try {
            players = playerHome.findBySport(sport);
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return copyPlayersToDetails(players);
    } // getPlayersBySport

    public ArrayList getPlayersByCity(String city) {
        Debug.print("RosterBean getPlayersByCity");

        Collection players = null;

        try {