lucene-java-3.5.0/lucene/contrib/xml-query-parser/src/test/org/apache/lucene/xmlparser/albumFilteredQuery.xsl

   1 <?xml version="1.0" encoding="ISO-8859-1"?>
   2 <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
   3 <xsl:template match="/Document">
   4 <!-- This template uses an efficient, cached filter for the "genre" field".
   5         Other query fields are fed directly through an analyzer and so do not need to adhere to
   6         traditional Lucene query syntax. Terms within a field are ORed while different fields are ANDed
   7  -->
   8 <FilteredQuery>
   9         <Query>
  10                 <BooleanQuery>
  11                         <xsl:if test="count(artist)>0">
  12                             <Clause occurs="must">
  13                               <TermsQuery fieldName="artist"><xsl:value-of select="artist"/></TermsQuery>
  14                            </Clause>
  15                    </xsl:if>
  16                         <xsl:if test="count(album)>0">
  17                             <Clause occurs="must">
  18                               <TermsQuery fieldName="album"><xsl:value-of select="album"/></TermsQuery>
  19                            </Clause>
  20                    </xsl:if>
  21                         <xsl:if test="count(releaseDate)>0">
  22                             <Clause occurs="must">
  23                               <TermsQuery fieldName="releaseDate"><xsl:value-of select="releaseDate"/></TermsQuery>
  24                            </Clause>
  25                    </xsl:if>
  26         </BooleanQuery>
  27         </Query>
  28         <Filter>
  29                 <CachedFilter>
  30                         <!-- Example filter to be cached for fast, repeated use -->
  31                         <TermsFilter fieldName="genre">
  32                                 <xsl:value-of select="genre"/>
  33                         </TermsFilter>
  34                 </CachedFilter>
  35         </Filter>
  36 </FilteredQuery>
  37 </xsl:template>
  38 </xsl:stylesheet>