This section assumes that you already have a PostgreSQL database set up and ready to go. Make sure that you have it set to accept incoming TCP/IP connections. This can be configured when running the postmaster command. For more information on database start-up options, see Chapter 9.

Before you can use JDBC, you must build the PostgreSQL JDBC drivers. To do this, you must have the Java source code that is used to build the driver. This source is included both in the complete PostgreSQL package, and in the opt package. These can be downloaded from the PostgreSQL site; for more information about downloading and installing these, see Chapter 2.

You also need Ant. Ant is a standard build system for Java products, somewhat similar to gmake, and is created by Apache’s Jakarta project. It is required to build the PostgreSQL JDBC driver. For more information on Ant, see: http://jakarta.apache.org/ant/index.html. Make sure that Ant’s bin directory is in your path.

First you need to configure the makefile system to recognize that you are using Java. If you did not originally build PostgreSQL with Java support, move into the top level of the PostgreSQL source tree, and type ./configure with-java, along with any other configure options you originally used. This will regenerate makefiles and, if necessary, will add support for Java.

Next you must actually build the driver and implementations. Change to the src/interfaces/jdbc directory and issue the gmake command. This will build two jar files: postgresql.jar, containing the Driver class and other concrete implementations, and postgresql-examples.jar, containing compiled example classes.