Add support for JDBC connector.

Modify params.pp to abstract the package name for the postgresql JDBC
connector and add Class['postgresql::java'].  Also update the README.md
to mention the availability of this class.

README.md

@@ -76,6 +76,17 @@ postgresql::database_grant{'grant select to marmot':
 etc, etc.
 
 
+Usage
+-----
+
+### postgresql::java
+Installs postgresql bindings for java.
+
+```Puppet
+class { 'postgresql::java': }
+```
+
+
 Automated testing
 -----------------
 

manifests/java.pp

@@ -0,0 +1,26 @@
+# Class: postgresql::java
+#
+# This class installs the postgresql jdbc connector.
+#
+# Parameters:
+#   [*java_package_name*]  - The name of the postgresql java package.
+#
+# Actions:
+#
+# Requires:
+#
+# Sample Usage:
+#
+#   class { 'postgresql::java': }
+#
+class postgresql::java (
+  $package_name   = $postgresql::params::java_package_name,
+  $package_ensure = 'present'
+) inherits postgresql::params {
+
+  package { 'postgresql-jdbc':
+    ensure => $package_ensure,
+    name   => $package_name,
+  }
+
+}

manifests/params.pp

@@ -99,6 +99,7 @@
         $client_package_name = 'postgresql'
         $server_package_name = 'postgresql-server'
         $devel_package_name  = 'postgresql-devel'
+        $java_package_name   = 'postgresql-jdbc'
         $service_name = 'postgresql'
         $bindir       = '/usr/bin'
         $datadir      = '/var/lib/pgsql/data'
@@ -109,6 +110,7 @@
         $client_package_name = "postgresql${package_version}"
         $server_package_name = "postgresql${package_version}-server"
         $devel_package_name  = "postgresql${package_version}-devel"
+        $java_package_name   = "postgresql${package_version}-jdbc"
         $service_name = "postgresql-${version}"
         $bindir       = "/usr/pgsql-${version}/bin"
         $datadir      = "/var/lib/pgsql/${version}/data"
@@ -143,6 +145,7 @@
       $client_package_name = "postgresql-client-${version}"
       $server_package_name = "postgresql-${version}"
       $devel_package_name  = 'libpq-dev'
+      $java_package_name   = 'libpostgresql-jdbc-java'
       $bindir              = "/usr/lib/postgresql/${version}/bin"
       $datadir             = "/var/lib/postgresql/${version}/main"
       $confdir             = "/etc/postgresql/${version}/main"