The properties URL init param allow to load an external file by specifying its URL. Both property and XML format are supported, see the javadoc of the java.util.Properties class for more information. When a property file is loaded the various property declarations are loaded in the order in which the properties are declared sequentially in the file.

<component>

  <key>PropertyManagerConfigurator</key>

  <type>org.exoplatform.container.PropertyConfigurator</type>

  <init-params>

    <value-param>

      <name>properties.url</name>

      <value>classpath:configuration.properties</value>

    </value-param>

  </init-params>

</component>

In the properties file corresponding to the external properties, you can reuse variables before defining to create a new variable. In this case, the prefix "portal.container." is not needed, see an example below:

my-var1=value 1
my-var2=value 2
complex-value=${my-var1}-${my-var2}