

<h2>SPI Overview</h2>

The SPI is very simple, there is only one mandatory interface
to be implemented. Then the implementation must be integrated
with IDE.


<h2>SPI Implementator Guide</h2>

<p>Every SPI implementation must implement interface
{@link org.netbeans.modules.xml.catalog.spi.CatalogReader CatalogReader}
allowing quering catalog for entries, refreshing its content and optionaly
listening on its content.

<p>An SPI implementation should implement following interfaces:
<ul>
<li>{@link org.netbe