Class ComplexPhraseQueryParser

QueryParser which permits complex phrase query syntax eg "(john jon jonathan~) peters*".

Performs potentially multiple passes over Query text to parse any nested logic in PhraseQueries. - First pass takes any PhraseQuery content between quotes and stores for subsequent pass. All other query content is parsed as normal - Second pass parses any stored PhraseQuery content, checking all embedded clauses are referring to the same field and therefore can be rewritten as Span queries. All PhraseQuery clauses are expressed as ComplexPhraseQuery objects

This could arguably be done in one pass using a new QueryParser but here I am working within the constraints of the existing parser as a base class. This currently simply feeds all phrase content through an analyzer to select phrase terms - any "special" syntax such as * ~ * etc are not given special status

Inheritance
System.Object
QueryParserBase
QueryParser
ComplexPhraseQueryParser
Inherited Members
Namespace: Lucene.Net.QueryParsers.ComplexPhrase
Assembly: Lucene.Net.QueryParser.dll
Syntax
public class ComplexPhraseQueryParser : QueryParser, ICommonQueryParserConfiguration

Constructors

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ComplexPhraseQueryParser(LuceneVersion, String, Analyzer)

Declaration
public ComplexPhraseQueryParser(LuceneVersion matchVersion, string f, Analyzer a)
Parameters
Type Name Description
LuceneVersion matchVersion
System.String f
Analyzer a

Properties

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InOrder

When InOrder is true, the search terms must exists in the documents as the same order as in query. Choose between ordered (true) or un-ordered (false) proximity search.

Declaration
public virtual bool InOrder { get; }
Property Value
Type Description
System.Boolean

Methods

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GetFieldQuery(String, String, Int32)

Declaration
protected override Query GetFieldQuery(string field, string queryText, int slop)
Parameters
Type Name Description
System.String field
System.String queryText
System.Int32 slop
Returns
Type Description
Query
Overrides
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GetFuzzyQuery(String, String, Single)

Declaration
protected override Query GetFuzzyQuery(string field, string termStr, float minSimilarity)
Parameters
Type Name Description
System.String field
System.String termStr
System.Single minSimilarity
Returns
Type Description
Query
Overrides
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GetRangeQuery(String, String, String, Boolean, Boolean)

Declaration
protected override Query GetRangeQuery(string field, string part1, string part2, bool startInclusive, bool endInclusive)
Parameters
Type Name Description
System.String field
System.String part1
System.String part2
System.Boolean startInclusive
System.Boolean endInclusive
Returns
Type Description
Query
Overrides
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GetWildcardQuery(String, String)

Declaration
protected override Query GetWildcardQuery(string field, string termStr)
Parameters
Type Name Description
System.String field
System.String termStr
Returns
Type Description
Query
Overrides
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NewRangeQuery(String, String, String, Boolean, Boolean)

Declaration
protected override Query NewRangeQuery(string field, string part1, string part2, bool startInclusive, bool endInclusive)
Parameters
Type Name Description
System.String field
System.String part1
System.String part2
System.Boolean startInclusive
System.Boolean endInclusive
Returns
Type Description
Query
Overrides
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NewTermQuery(Term)

Declaration
protected override Query NewTermQuery(Term term)
Parameters
Type Name Description
Term term
Returns
Type Description
Query
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Parse(String)

Declaration
public override Query Parse(string query)
Parameters
Type Name Description
System.String query
Returns
Type Description
Query
Overrides

Implements