/**
* Creates a connection pool (2 connections) and execututes queries on each. It then tries to get
* a third connection.
*/
public static void testConnectionPooling() {
ConnectionPool conPool = new ConnectionPool(2, driverName, connURL, username, password);
conPool.resizeConnectionPool(3);
String out = "";
try {
SQLExecutor sqlExec1 = new SQLExecutor(conPool);
SQLResults res1 = sqlExec1.runQuery("select dd * from JDBC_TEST where CODE < 'E'");
res1.setToStringFormatWidth(11);
out += res1.toString() + "\n\n";
SQLExecutor sqlExec2 = new SQLExecutor(conPool);
SQLResults res2 = sqlExec2.runQuery("select * from JDBC_TEST where CODE > 'E'");
out += res2.toString() + "\n\n";
// try to get a third connection via getConnection(). there are no available
// connections so the ConnectionPool will create a new connection, add it the
// pool, and return the new connection
SQLExecutor sqlExec3 = new SQLExecutor(conPool);
SQLResults res3 = sqlExec2.runQuery("select * from JDBC_TEST where CODE > 'E'");
out += res3.toString();
} finally {
conPool.closeAllConnections();
}
System.out.println(out);
}
