diff --git a/projects/cadcAccessControl-Server/src/ca/nrc/cadc/ac/server/ldap/LdapUserDAO.java b/projects/cadcAccessControl-Server/src/ca/nrc/cadc/ac/server/ldap/LdapUserDAO.java
index 0e2702a586e4b41ae37c0cc415a0f407a72e611d..e7bf2dc988d1e82e371f101ff36afae836ab13d2 100755
--- a/projects/cadcAccessControl-Server/src/ca/nrc/cadc/ac/server/ldap/LdapUserDAO.java
+++ b/projects/cadcAccessControl-Server/src/ca/nrc/cadc/ac/server/ldap/LdapUserDAO.java
@@ -770,7 +770,8 @@ public class LdapUserDAO<T extends Principal> extends LdapDAO
     }
 
     /**
-     * Check whether the user is a member of the group.
+     * Check whether the user is a member of the group. This method is created
+     * to provide optimization for the LDAP server.
      *
      * @param userID  The userID.
      * @param groupID The groupID.
diff --git a/projects/cadcAccessControl-Server/src/ca/nrc/cadc/ac/server/ldap/LdapUserPersistence.java b/projects/cadcAccessControl-Server/src/ca/nrc/cadc/ac/server/ldap/LdapUserPersistence.java
index 5c85dcfc43e7aa3e27bcc810fd6a7f6166936bb7..d86455939f066cee113f219873cd79452ce8df18 100755
--- a/projects/cadcAccessControl-Server/src/ca/nrc/cadc/ac/server/ldap/LdapUserPersistence.java
+++ b/projects/cadcAccessControl-Server/src/ca/nrc/cadc/ac/server/ldap/LdapUserPersistence.java
@@ -351,7 +351,8 @@ public class LdapUserPersistence<T extends Principal>
     }
     
     /**
-     * Check whether the user is a member of the group.
+     * Check whether the user is a member of the group. This method is created
+     * to provide optimization for the LDAP server.
      *
      * @param userID The userID.
      * @param groupID The groupID.