Let's have a look at the configuration of the LDAPService. It's not important to know LDAP, we only discuss the parameters.

<component>

    <key>org.exoplatform.services.ldap.LDAPService</key>

    <type>org.exoplatform.services.ldap.impl.LDAPServiceImpl</type>

    <init-params>

      <object-param>

        <name>ldap.config</name>

        <description>Default ldap config</description>

        <object type="org.exoplatform.services.ldap.impl.LDAPConnectionConfig">         

   <field  name="providerURL"><string>ldaps://10.0.0.3:636</string></field>

   <field  name="rootdn"><string>CN=Administrator,CN=Users,DC=exoplatform,DC=org</string></field>

   <field  name="password"><string>exo</string></field>

   <field  name="version"><string>3</string></field>

     <field  name="minConnection"><int>5</int></field>

       <field  name="maxConnection"><int>10</int></field>    

       <field  name="referralMode"><string>ignore</string></field>

       <field  name="serverName"><string>active.directory</string></field>

       </object>

      </object-param>

    </init-params>

</component>

You see here an object-param is being used to pass the parameters inside an object (actually a java bean). It consists of a name, a description and exactly one object. The object defines the type and a number of fields.

Here you see how the service accesses the object:

package org.exoplatform.services.ldap.impl;


public class LDAPServiceImpl implements LDAPService {

...

  public LDAPServiceImpl(InitParams params) {

    LDAPConnectionConfig config = (LDAPConnectionConfig) params.getObjectParam("ldap.config")

                                                               .getObject();

...

The passed object is LDAPConnectionConfig which is a classic java bean. It contains all fields and also the appropriate getters and setters (not listed here). You also can provide default values. The container creates a new instance of your bean and calls all setters whose values are configured in the configuration file.

package org.exoplatform.services.ldap.impl;


public class LDAPConnectionConfig {

  private String providerURL        = "ldap://127.0.0.1:389";

  private String rootdn;

  private String password;                                  

  private String version;                                   

  private String authenticationType = "simple";

  private String serverName         = "default";

  private int    minConnection;

  private int    maxConnection;

  private String referralMode       = "follow";

...

You see that the types (String, int) of the fields in the configuration correspond with the bean. A short glance in the kernel_1_0.xsd file let us discover more simple types:

Have a look on this type test xml file: object.xml.