@Override
protected void initValidators()
{
opfValidators.clear();
opfValidators.add(new XMLValidator("schema/30/package-30.rnc"));
opfValidators.add(new XMLValidator("schema/30/package-30.sch"));
opfValidators.add(new XMLValidator("schema/30/collection-do-30.sch"));
opfValidators.add(new XMLValidator("schema/30/collection-manifest-30.sch"));
if (opfData != null && opfData.getTypes().contains(OPFData.DC_TYPE_EDUPUB))
{
opfValidators.add(new XMLValidator("schema/30/edupub/edu-opf.sch"));
}
}