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<p>This package provides an implementation of projection documents. Projection
is a specific master/slave mapping. Non-overlapping fragments if a master document
form the segments of a slave document. The slave document is completely built
out of segments, i.e. there are no gaps between two neighboring segments. The
segments have exactly the same sequence in which they apprear as fragments in
the master document.</p>
<h2>Package Specification</h2>
<p><tt>ProjectionDocument</tt> is custom
<tt>IDocument</tt> implementation that
uses a <tt>ProjectionTextStore. </tt>The
content of the <tt>ProjectionDocument</tt>
is defined by the <tt>ProjectionMapping.
</tt>The<tt> ProjectionDocumentManager</tt>
manages the life cycle of <tt>ProjectionDocuments</tt>
and their relation to their master documents.</p>
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