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Player findWinnerFromSecondPreviousMatch(long matchId); void cancelMatchWithWinner(long matchId, Player player, String comment); void cancelMatchNoWinner(long matchId, String comment); Player findFirstPlayerForMatch(long matchId); Player findSecondPlayerForMatch(long matchId); } If you look at the course of a tournament as a workflow, you ll see that there s a start and an end. The methods that return Boolean values in Listing 1-3 provide the business logic with information about the current state of the tournament. The methods that return Player objects use the information in the database to determine who won previous matches. The cancelMatchWithWinner() and cancelMatchNoWinner() methods update the state of the matches in the database. Classes that implement the MatchDao interface need a connection to the database. For this purpose, a data source is used (the javax.sql.DataSource interface) that creates a connection to the database on demand. Data sources are discussed in more detail in 5; for now, you only need to know that the javax.sql.DataSource interface is used to create connections to the database. Let s round up the dependencies in this use case. DefaultTournamentMatchManager objects need a collaborating object that implements the MatchDao interface to access the database. For the remainder of this chapter, we ll use the JdbcMatchDao class as an implementation class. The JdbcMatchDao class has a dependency on the javax.sql.DataSource interface, as shown in Listing 1-4. JdbcMatchDao objects need a DataSource object to get a connection to the database. Listing 1-4. JdbcMatchDao, Which Implements the MatchDao Interface and Queries the Database package com.apress.springbook.chapter01.jdbc; import javax.sql.DataSource; import com.apress.springbook.chapter01.MatchDao; import org.springframework.jdbc.core.JdbcTemplate; public class JdbcMatchDao implements MatchDao { private JdbcTemplate jdbcTemplate; public void setDataSource(DataSource dataSource) { this.jdbcTemplate = new JdbcTemplate(dataSource); } public boolean doesMatchExist(long matchId) { return 1 == jdbcTemplate.queryForInt( "SELECT COUNT(0) FROM T_MATCHES WHERE MATCH_ID = ", new Object[] { new Long(matchId) } ); } /* other methods omitted for brevity */ }

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So you went through all those steps, but instead of the modification, you got a cryptic PHP error message, or perhaps there s no sign of any changes. In that case, review the following troubleshooting steps: Did you upload it In the heat of the moment, it s easy to forget to upload. Make sure you uploaded the modification, and it s in the right place. Did you insert template code Most phpBB 2.0 hacks require work to be done on your template. If you are not using the subSilver template on your site, make sure you edit the templates that your site uses. If you don t, you likely won t see any result from any of your hacks. Is all the code in the right place Make sure all your code is properly placed within your files. Placement can be critical. Sometimes, the instructions are not as clear as they should be about where to put the code (it does happen). Is all the code right Rarely, bad code makes its way into a hack. While people test hacks before they go into the databases, sometimes something slips. Check with the hack author or the distributor before continuing. Is there a version incompatibility Sometimes, phpBB updates break existing hacks. If you have reason to believe this is a problem, contact the distributor of your hack or the hack author. If you continue to encounter problems, you will probably want to restore your file from a backup (particularly if there is a parse error or other unsightly problem that PHP reports) and wait to see if a fix is released. Also, feel free to use the support forums located at the various hack sites. They are there to help!

Portlet sessions provide the time when the user last accessed the session. You can use this to provide a session timeout countdown to users, to warn them that the portal will drop their session after an amount of time has passed. The getCreationTime() method returns the time when the portal created the session. This time is in milliseconds since 1970.

Some groups independent of phpBB take the phpBB codebase, add a lot of modifications to it, and re-release it in a package commonly known as a prehacked board. These can be the pinnacle of convenience, adding in just about any feature you could ever want bolted onto your phpBB software in one easy-to-install package, with no code to sweat over. However, these prehacked boards have some serious disadvantages that outweigh their advantages. For starters, prehacked boards typically come with a plethora of additional features that you may never need. With additional features comes additional bloat. Considering that the modifications applied probably have not had much mainstream performance testing, loading the package on your server when traffic is high could be quite a challenge. (Of course, this varies depending on who packaged the distribution.) Another problem is that prehacked boards may or may not be totally secure. Some boards may use older phpBB codebases, which may be vulnerable to attack. If a critical update is made available by the phpBB team, there s no telling when that same update will be available for your prehacked package, as applying the official phpBB update may break your board. Finally, distributions can come and go. If your prehacked phpBB maintainers decide to abandon their project, you could be stuck out in the cold with limited support and no updates, which is not safe when vulnerabilities strike. You are better off sticking with an official phpBB release that will be updated and supported. With an official release, you have total control over the modifications the freedom to add and remove features at will. With the prehacked packages, you are not necessarily afforded such flexibility.

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