appserver/tests/v2-tests/appserv-tests/devtests/cmp/rosterJava2DB/ejb/roster/RosterBean.java

/*
 * Copyright (c) 2001, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package roster;

import java.util.*;
import jakarta.ejb.*;
import jakarta.ejb.*;
import javax.naming.*;
import util.*;
import team.*;
import java.rmi.RemoteException;

public class RosterBean implements SessionBean {

    private  LocalPlayerHome playerHome = null;
    private  LocalTeamHome teamHome = null;
    private  LocalLeagueHome leagueHome = null;

    private  PlayerHome remPlayerHome = null;
    private  TeamHome remTeamHome = null;
    private  LeagueHome remLeagueHome = null;


    // 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 {
            players = playerHome.findByCity(city);
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return copyPlayersToDetails(players);
    } // getPlayersByCity

    public ArrayList getAllPlayers() {

        Debug.print("RosterBean getAllPlayers");
        Collection players = null;

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

        return copyPlayersToDetails(players);
    } // getAllPlayers

    public ArrayList getPlayersNotOnTeam() {

        Debug.print("RosterBean getPlayersNotOnTeam");
        Collection players = null;

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

        return copyPlayersToDetails(players);
    } // getPlayersNotOnTeam

    public ArrayList getPlayersByPositionAndName(String position,
        String name) {

        Debug.print("RosterBean getPlayersByPositionAndName");
        Collection players = null;

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

        return copyPlayersToDetails(players);
    } // getPlayersByPositionAndName

    public ArrayList getLeaguesOfPlayer(String playerId) {

        Debug.print("RosterBean getLeaguesOfPlayer");
        ArrayList detailsList = new ArrayList();
        Collection leagues = null;

        try {
            LocalPlayer player = playerHome.findByPrimaryKey(playerId);
            leagues = player.getLeagues();
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        Iterator i = leagues.iterator();
        while (i.hasNext()) {
            LocalLeague league = (LocalLeague) i.next();
            LeagueDetails details = new LeagueDetails(league.getLeagueId(),
                league.getName(), league.getSport());
            detailsList.add(details);
        }
        return detailsList;
    } // getLeaguesOfPlayer

    public ArrayList getSportsOfPlayer(String playerId) {

        Debug.print("RosterBean getSportsOfPlayer");
        ArrayList sportsList = new ArrayList();
        Collection sports = null;

        try {
            LocalPlayer player = playerHome.findByPrimaryKey(playerId);
            sports = player.getSports();
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        Iterator i = sports.iterator();
        while (i.hasNext()) {
            String sport = (String) i.next();
            sportsList.add(sport);
        }
        return sportsList;
    } // getSportsOfPlayer

    // Team business methods

    public void createTeamInLeague(TeamDetails details, String leagueId) {

        Debug.print("RosterBean createTeamInLeague");
        try {
            LocalLeague league = leagueHome.findByPrimaryKey(leagueId);
            LocalTeam team = teamHome.create(details.getId(),
                details.getName(), details.getCity());
            league.addTeam(team);
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }
    }

    public void removeTeam(String teamId) {

        Debug.print("RosterBean removeTeam");
        try {
            LocalTeam team = teamHome.findByPrimaryKey(teamId);
            team.remove();
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }
    }

    public TeamDetails getTeam(String teamId) {

        Debug.print("RosterBean getTeam");
        TeamDetails teamDetails = null;
        try {
            LocalTeam team = teamHome.findByPrimaryKey(teamId);
            teamDetails = new TeamDetails(teamId,
                team.getName(), team.getCity());
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }
        return teamDetails;
    }


    // League business methods

    public void createLeague(LeagueDetails details) {

        Debug.print("RosterBean createLeague");
        try {
            LocalLeague league = leagueHome.create(details.getId(),
                details.getName(), details.getSport());
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }
    }

    public void removeLeague(String leagueId) {

        Debug.print("RosterBean removeLeague");
        try {
            LocalLeague league = leagueHome.findByPrimaryKey(leagueId);
            league.remove();
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }
    }

    public LeagueDetails getLeague(String leagueId) {

        Debug.print("RosterBean getLeague");
        LeagueDetails leagueDetails = null;
        try {
            LocalLeague league = leagueHome.findByPrimaryKey(leagueId);
            leagueDetails = new LeagueDetails(leagueId,
                league.getName(), league.getSport());
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }
        return leagueDetails;
    }

    // SessionBean methods

    public void ejbCreate() throws CreateException {

        Debug.print("RosterBean ejbCreate");
        try {
            playerHome = lookupPlayer();
            teamHome = lookupTeam();
            leagueHome = lookupLeague();
            remPlayerHome = lookupRemotePlayer();
            remTeamHome = lookupRemoteTeam();
            remLeagueHome = lookupRemoteLeague();
        } catch (NamingException ex) {
            throw new CreateException(ex.getMessage());
        }
    }

    public void ejbActivate() {

        Debug.print("RosterBean ejbActivate");
        try {
            playerHome = lookupPlayer();
            teamHome = lookupTeam();
            leagueHome = lookupLeague();
            remPlayerHome = lookupRemotePlayer();
            remTeamHome = lookupRemoteTeam();
            remLeagueHome = lookupRemoteLeague();

        } catch (NamingException ex) {
            throw new EJBException(ex.getMessage());
        }
    }

    public void ejbPassivate() {

        playerHome = null;
        teamHome = null;
        leagueHome = null;
        remPlayerHome = null;
        remTeamHome = null;
        remLeagueHome = null;

    }

    public RosterBean() {}
    public void ejbRemove() {}
    public void setSessionContext(SessionContext sc) {}

    // Private methods

    private LocalPlayerHome lookupPlayer() throws NamingException {

        Context initial = new InitialContext();
        Object objref = initial.lookup("java:comp/env/ejb/SimplePlayerExt");
        return (LocalPlayerHome) objref;
   }

    private LocalTeamHome lookupTeam() throws NamingException {

        Context initial = new InitialContext();
        Object objref = initial.lookup("java:comp/env/ejb/SimpleTeamExt");
        return (LocalTeamHome) objref;
   }

    private LocalLeagueHome lookupLeague() throws NamingException {

        Context initial = new InitialContext();
        Object objref = initial.lookup("java:comp/env/ejb/SimpleLeagueExt");
        return (LocalLeagueHome) objref;
   }

    private PlayerHome lookupRemotePlayer() throws NamingException {

        Context initial = new InitialContext();
        Object objref = initial.lookup("java:comp/env/ejb/RemotePlayerExt");
        return (PlayerHome) objref;
   }

    private TeamHome lookupRemoteTeam() throws NamingException {

        Context initial = new InitialContext();
        Object objref = initial.lookup("java:comp/env/ejb/RemoteTeamExt");
        return (TeamHome) objref;
   }

    private LeagueHome lookupRemoteLeague() throws NamingException {

        Context initial = new InitialContext();
        Object objref = initial.lookup("java:comp/env/ejb/RemoteLeagueExt");
        return (LeagueHome) objref;
   }

   private ArrayList copyPlayersToDetails(Collection players) {

        ArrayList detailsList = new ArrayList();
        Iterator i = players.iterator();

        while (i.hasNext()) {
            LocalPlayer player = (LocalPlayer) i.next();
            PlayerDetails details = new PlayerDetails(player.getPlayerId(),
                player.getName(), player.getPosition(), player.getSalary());
            detailsList.add(details);
        }

        return detailsList;
   } // copyPlayersToDetails

   private ArrayList copyRemotePlayersToDetails(Collection players) throws RemoteException {

        ArrayList detailsList = new ArrayList();
        Iterator i = players.iterator();

        while (i.hasNext()) {
            Player player = (Player) i.next();
            PlayerDetails details = new PlayerDetails(player.getPlayerId(),
                player.getName(), player.getPosition(), player.getSalary());
            detailsList.add(details);
        }

        return detailsList;
   } // copyPlayersToDetails

   /**
    * dirty cleanUp method only EJBs with hardcoded PK will be removed
    */
    public void cleanUp() {
        Debug.print("Cleaning up the database");
        Collection toClean = null;
        Iterator it = null;

        try {
            //removing the player EJBs
            toClean = playerHome.findAll();
            it = toClean.iterator();
            while (it.hasNext()) {
                ((LocalPlayer)it.next()).remove();
            }

            // removing the team EJBs
            toClean = teamHome.findAll();
            it = toClean.iterator();
            while (it.hasNext()) {
                ((LocalTeam)it.next()).remove();
            }

            // removing the league EJBs
            toClean = leagueHome.findAll();
            it = toClean.iterator();
            while (it.hasNext()) {
                ((LocalLeague)it.next()).remove();
            }
        Debug.print("Cleaning up the database ... done!");
        }  catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }
    }

    /**
     *
     * @param name
     * @return
     */
    public LeagueDetails getLeagueByName(String name) {

        Debug.print("RosterBean getLeagueByName (SingleObjectFinder)");
        LeagueDetails leagueDetails = null;
        try {
            LocalLeague league = leagueHome.findByName(name);
            leagueDetails = new LeagueDetails(league.getLeagueId(),
                league.getName(), league.getSport());
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return leagueDetails;
    }
    // getLeagueByName()


    /**
     *
     * @param playerKey
     * @param leagueKey
     * @return
     */
    public ArrayList getTeamsByPlayerAndLeague(String playerKey,
                                               String leagueKey) {

        Debug.print("RosterBean getTeamsByPlayerAndLeague");
        ArrayList detailsList = new ArrayList();
        Collection teamsColl = null;

        try {
            LocalPlayer player = playerHome.findByPrimaryKey(playerKey);
            LocalLeague league = leagueHome.findByPrimaryKey(leagueKey);
            teamsColl = teamHome.findByPlayerAndLeague(player, league);
        }
        catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        Iterator it = teamsColl.iterator();
        while (it.hasNext()) {
            LocalTeam team = (LocalTeam) it.next();
            TeamDetails details = new TeamDetails(team.getTeamId(),
                team.getName(), team.getCity());
            detailsList.add(details);
        }

        return detailsList;
    }

    /**
     *
     * @param playerKey
     * @param leagueKey
     * @return
     */
    public ArrayList getTeamsByPlayerAndLeagueViaRemote(String playerKey,
                                                        String leagueKey) {

        Debug.print("RosterBean getTeamsByPlayerAndLeagueViaRemote");
        ArrayList detailsList = new ArrayList();
        Collection teamsColl = null;

        try {
            Debug.print(" ----- finding ....");
            Player player = remPlayerHome.findByPrimaryKey(playerKey);
            Debug.print(" ----- Player found");
            League league = remLeagueHome.findByPrimaryKey(leagueKey);
            Debug.print(" ----- League found");
            teamsColl = remTeamHome.findByPlayerAndLeagueViaRemote(player, league);
            Debug.print(" ----- Team found");
        }
        catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }
        try {
            Iterator it = teamsColl.iterator();
            while (it.hasNext()) {
                Team team = (Team) it.next();
                TeamDetails details = new TeamDetails(team.getTeamId(),
                team.getName(), team.getCity());
                detailsList.add(details);
            }
        }
        catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }


        return detailsList;
    }

    /**
     *
     * @param city
     * @return
     */
    public Set getCitiesOfLeague(String leagueKey) {

        Debug.print("RosterBean getCitiesOfLeague(leagueKey)");
        LocalLeague league;
        Set cities;

        try {
            league = leagueHome.findByPrimaryKey(leagueKey);
            cities = league.getCitiesOfThisLeague();
        }
        catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return cities;
    }// getCitiesOfLeague()


    public ArrayList getRemoteTeamsOfLeague(String leagueKey) {

        Debug.print("RosterBean getRemoteTeamsOfLeague(leagueKey)");
        ArrayList detailsList = new ArrayList();
        League league;
        Set teams;

        try {
            league = remLeagueHome.findByPrimaryKey(leagueKey);
            teams = league.getRemoteTeamsOfThisLeague();
        }
        catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        try {
            Iterator it = teams.iterator();
            while (it.hasNext()) {
                Team team = (Team) it.next();
                TeamDetails details = new TeamDetails(team.getTeamId(),
                team.getName(), team.getCity());
                detailsList.add(details);
            }
        }
        catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return detailsList;
    }

    /**
     *
     * @param leagueKey
     * @param city
     * @return
     */
    public TeamDetails getTeamOfLeagueByCity(String leagueKey, String city) {
        Debug.print("RosterBean getTeamOfLeagueByCity(leagueKey, city)");
        LocalLeague league;
        LocalTeam team;

        try {
            league = leagueHome.findByPrimaryKey(leagueKey);
            team = league.getTeamByCity(city);
        }
        catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return new TeamDetails(team.getTeamId(), team.getName(), team.getCity());
    }// getTeamOfLeagueByCity()


    /**
     *
     * @param leagueKey
     * @param city
     * @return
     */
    public String getTeamsNameOfLeagueByCity(String leagueKey, String city) {
        Debug.print("RosterBean getTeamsNameOfLeagueByCity(leagueKey, city)");
        LocalLeague league;
        String teamName;

        try {
            league = leagueHome.findByPrimaryKey(leagueKey);
            teamName = league.getTeamsNameByCity(city);
        }
        catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return teamName;

    }// getTeamsNameOfLeagueByCity()


    /**
     *
     * @param teamID
     * @param playerName
     * @return
     */
    public double getSalaryOfPlayerFromTeam(String teamID, String playerName) {
        Debug.print("RosterBean getSalaryOfPlayerFromTeam(teamKey, playerKey)");
        LocalTeam team;
        double salary;

        try {
            team = teamHome.findByPrimaryKey(teamID);
            salary = team.getSalaryOfPlayer(playerName);
        }
        catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return salary;
    }// getSalaryOfPlayerFromTeam()


    /**
     *
     * @param leagueId
     * @return
     */
    public ArrayList getPlayersOfLeague(String leagueId) {
       Debug.print("RosterBean getPlayersOfLeague(leagueId)");
       LocalLeague league;
       Set players;

       try {
           league = leagueHome.findByPrimaryKey(leagueId);
           players = league.getPlayersFromLeague();
       }
       catch (Exception ex) {
           throw new EJBException(ex.getMessage());
       }

       return copyPlayersToDetails(players);
    }// getPlayersOfLeague()

    /**
     *
     * @param leagueId
     * @return
     */
    public ArrayList getRemotePlayersOfLeague(String leagueId) {
       Debug.print("RosterBean getRemotePlayersOfLeague(leagueId)");
       League league;
       Collection players;
       ArrayList result;
       try {
           league = remLeagueHome.findByPrimaryKey(leagueId);
           players = league.getRemotePlayersFromLeague();
           result = copyRemotePlayersToDetails(players);
       }
       catch (Exception ex) {
           throw new EJBException(ex.getMessage());
       }

       return result;
    }// getPlayersOfLeague()

    /**
     *
     * @return
     */
    public ArrayList getPlayersWithPositionsGoalkeeperOrDefender() {
        Debug.print("RosterBean getPlayersWithPositionsGoalkeeperOrDefender()");
        Collection players = null;

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

        return copyPlayersToDetails(players);
    }// getPlayersWithPositionsGoalkeeperOrDefender()

    /**
     *
     * @return
     */
    public ArrayList getPlayersWithNameEndingWithON() {
        Debug.print("RosterBean getPlayersWithNameEndingWithON()");
        Collection players = null;

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

        return copyPlayersToDetails(players);
    }// getPlayersWithNameEndingWithON()

    /**
     *
     * @return
     */
    public ArrayList getPlayersWithNullName() {
        Debug.print("RosterBean getPlayersWithNullName()");
        Collection players = null;

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

        return copyPlayersToDetails(players);
    }// getPlayersWithNullName()



    /**
     *
     * @param teamId
     * @return
     */
    public ArrayList getPlayersWithTeam(String teamId) {
        Debug.print("RosterBean getPlayersWithTeam(teamId)");
        LocalTeam team;
        Collection players = null;

        try {
            team = teamHome.findByPrimaryKey(teamId);
            players = playerHome.findByTeam(team);
        }
        catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return copyPlayersToDetails(players);
    }// getPlayersWithTeam()


    /**
     *
     * @param teamId
     * @return
     */
    public  String getTeamNameVariations(String teamId) {
        Debug.print("RosterBean getTeamNameVariations(teamId)");
        LocalTeam team;
        StringBuffer out = new StringBuffer();

        try {
            team = teamHome.findByPrimaryKey(teamId);
            Debug.print("--- CONCAT");
            out.append(team.getTeamNameWithStringfunctionTests1());
            Debug.print("--- SUBSTRING");
            out.append(team.getTeamNameWithStringfunctionTests2());
            Debug.print("--- LOCATE AND LENGTH");
            out.append(team.getTeamNameWithStringfunctionTests3());
        }
        catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return out.toString();
    }// getTeamNameVariations()


    /**
     *
     * @param salary
     * @return
     */
    public ArrayList getPlayersWithSalaryUsingABS(double salary) {
        Debug.print("RosterBean getPlayersWithSalaryUsingABS(salary)");
        Collection players = null;

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

        return copyPlayersToDetails(players);
    }// getPlayersWithSalaryUsingABS()


    /**
     *
     * @param salary
     * @return
     */
    public ArrayList getPlayersWithSalaryUsingSQRT(double salary) {
        Debug.print("RosterBean getPlayersWithSalaryUsingSQRT(salary)");
        Collection players = null;

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

        return copyPlayersToDetails(players);
    }// getPlayersWithSalaryUsingSQRT()



    /**
     *
     * @param leagueKey
     * @param city
     * @return
     */
    public TeamDetails getRemoteTeamOfLeagueByCity(String leagueKey, String city) {
        Debug.print("RosterBean getRemoteTeamOfLeagueByCity(leagueKey, city)");
        League league;
        Team team;
        TeamDetails teamDetails;

        try {
            league = remLeagueHome.findByPrimaryKey(leagueKey);
            team = league.getRemoteTeamByCity(city);
            teamDetails = new TeamDetails(team.getTeamId(), team.getName(), team.getCity());
        }
        catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return teamDetails;
    }// getRemoteTeamOfLeagueByCity()

    public ArrayList getPlayersByLeagueIdWithNULL(String leagueId) {

        Debug.print("RosterBean getPlayersByLeagueId");
        Collection players = null;

        try {
            LocalLeague league = null; //leagueHome.findByPrimaryKey(leagueId);
            players = playerHome.findByLeague(league);
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }

        return copyPlayersToDetails(players);
    } // getPlayersByLeagueId


} // RosterBean