public void setParentIdentifier(String parentIdentifier) {
        this.parentIdentifier = parentIdentifier;
    }
Sets the identifier of the parent connection group.

@param parentIdentifier
    The identifier of the parent connection group, or null if the parent
    connection group is the root connection group.
extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-base/src/main/java/org/apache/guacamole/auth/jdbc/base/ChildObjectModel.java