ans.modules.xml.catalog.spi.CatalogDescriptor CatalogDescriptor} describing catalog instance
<li>{@link org.netbeans.modules.xml.catalog.spi.CatalogWriter CatalogWriter} allowing to modify catalog entries
<li>SAX's org.xml.sax.EntityResolver if it can resolve more complicated cases than public => system ID mappings
</ul>


<h3>NetBeans IDE Platform Integration</h3>

An SPI implementation can register its availability using NetBeans <b>Lookup</b>.
A module providing a new SPI implementation registers its ava