Examples of hirondelle.web4j.database.ConnectionSource

hirondelle.web4j.database.ConnectionSource

avapractices.com/apps/fish/javadoc/src-html/hirondelle/web4j/config/ConnectionSrc.html">implementation, taken from the WEB4J example application.

There are many alternatives for creating or accessing database connections. The application programmer can use any technique whatsoever to implement this interface. For example, an implementation may :

use a connection pool configured in the server environment (the style used in the example application)
create a {@link Connection} directly, using the database driver. (Some modern drivers have connection pooling built directly into the driver.)
use some other means

The design of this interface is slightly skewed towards applications that use more than one database. If only one database is used in an application, then this interface is simply implemented 'as if' there were more than one. In practice, this should be only a minor nuisance. In addition, if a single-database application is extended to use more than one database, the changes will be absorbed naturally by the existing implementation.

If no database is used at all, then {@link #getDatabaseNames()} returns an emtpy Set.

See {@link SqlId} for related information.

    return sortMap(result);
  }


  private Map<String, Map<String, String>> getDbInfo() throws DAOException {
    Map<String, Map<String, String>> result = new HashMap<String, Map<String, String>>();
    ConnectionSource connSource = BuildImpl.forConnectionSource();
    for(String dbName : connSource.getDatabaseNames() ){
      result.put(dbName, getDbInfo(dbName, connSource));
    }
    return result;
  }


    TroubleTicket.init(aConfig, appInfo);
    initMoney(aConfig);
    
    fLogger.config("Calling ConnectionSource.init(ServletConfig).");
    ConnectionSource connSource = BuildImpl.forConnectionSource();
    connSource.init(aConfig);
    fLogger.fine("Init of internal classes, ConnectionSource completed " + stopwatch + " after start.");


    tryDatabaseInitAndStartupTasks();
    fLogger.fine("Database init and startup tasks completed " + stopwatch + " after start.");

      throw new RuntimeException("Cannot connect to one or more databases!! Cannot execute request.");
    }
  }
  
  private void tryDatabaseInitAndStartupTasks() throws DAOException, AppException {
    ConnectionSource connSrc = BuildImpl.forConnectionSource();
    if ( connSrc.getDatabaseNames().isEmpty() ) {
      fLogger.config("No databases in this application, since ConnectionSource returns an empty Set for database names.");
      fDbStartupSuccess = true; //since no db at all
    }
    else {
      fLogger.config("Attempting data layer startup tasks.");

Examples of hirondelle.web4j.database.ConnectionSource

Related Classes of hirondelle.web4j.database.ConnectionSource