NexJ Express Connecting to PostgreSQL
1- Setup the postgresql-connection
For testing the connection, the 'AllTests.java' is being used.
- Installed the
JDBC3 Postgresql Driver, Version 9.0-801
and added it to the libraries in JDK- The driver class which is being used for NexJ Express Model is:
org.postgresql.xa.PGXADataSource
- The driver is loaded from RelationalDatabaseFragment.java and RelationalDatabase.java
- The driver class which is being used for NexJ Express Model is:
- Metadata is loaded from the particular driver
/* MySQLAdapterTest.java */
try
{
s_metadata = loadMetadata(ADAPTER_NAME);
}
/* SQLDataTest.java */
protected static Metadata loadMetadata(String sAdapter)
{
Properties props = SysUtil.getConfigProperties(); // sets DEFAULT_CONFIG_URL = '/' + NAMESPACE + "/default.config"
props = new Properties(props);
props.setProperty(XMLMetadataLoader.CONNECTIONS_URL_PROPERTY, "/nexj/" + sAdapter.toLowerCase(Locale.ENGLISH) + ".connections"); // sets the properties to postgresql.connection
- After all properties are loaded, it creates the connection through Connection Factory files.