src/main/java/org/efaps/ui/wicket/models/objects/AbstractUIPageObject.java
public String registerOID(final String _oid)
    {
        final String ret = RandomUtil.randomAlphanumeric(8);
        getUiID2Oid().put(ret, _oid);
        return ret;
    }
public String registerOID(final String _oid)
    {
        final String ret = RandomUtil.randomAlphanumeric(8);
        getUiID2Oid().put(ret, _oid);
        return ret;
    }
Register oid.

@param _oid the oid
@return the string