org.apache.jackrabbit.core.query.lucene
Class DefaultXMLExcerpt
java.lang.Object
org.apache.jackrabbit.core.query.lucene.AbstractExcerpt
org.apache.jackrabbit.core.query.lucene.DefaultXMLExcerpt
- All Implemented Interfaces:
- ExcerptProvider, HighlightingExcerptProvider
public class DefaultXMLExcerpt
- extends AbstractExcerpt
DefaultXMLExcerpt
creates an XML excerpt of a matching node.
E.g. if you search for 'jackrabbit' and 'query' you may get the following
result for a node:
<excerpt>
<fragment><highlight>Jackrabbit</highlight> implements both the mandatory XPath and optional SQL <highlight>query</highlight> syntax.</fragment>
<fragment>Before parsing the XPath <highlight>query</highlight> in <highlight>Jackrabbit</highlight>, the statement is surrounded</fragment>
</excerpt>
Method Summary |
protected String |
createExcerpt(org.apache.lucene.index.TermPositionVector tpv,
String text,
int maxFragments,
int maxFragmentSize)
Creates an excerpt for the given text using token offset
information provided by tpv . |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
DefaultXMLExcerpt
public DefaultXMLExcerpt()
createExcerpt
protected String createExcerpt(org.apache.lucene.index.TermPositionVector tpv,
String text,
int maxFragments,
int maxFragmentSize)
throws IOException
- Creates an excerpt for the given
text
using token offset
information provided by tpv
.
- Specified by:
createExcerpt
in class AbstractExcerpt
- Parameters:
tpv
- the term position vector for the fulltext field.text
- the original text.maxFragments
- the maximum number of fragments to create.maxFragmentSize
- the maximum number of characters in a fragment.
- Returns:
- the xml excerpt.
- Throws:
IOException
- if an error occurs while creating the excerpt.
Copyright © 2004-2008 The Apache Software Foundation. All Rights Reserved.