Class QueryParserBase

So the generated QueryParser(CharStream) won't error out

Alternative form of AND

Alternative form of OR

Set to true to allow leading wildcard characters.

When set, * or ? are allowed as the first character of a PrefixQuery and WildcardQuery. Note that this can produce very slow queries on big indexes.

Default: false.

Get or Set whether or not to analyze range terms when constructing TermRangeQuerys. For example, setting this to true can enable analyzing terms into collation keys for locale-sensitive TermRangeQuery.

Set to true if phrase queries will be automatically generated when the analyzer returns more than one term from whitespace delimited text. NOTE: this behavior may not be suitable for all languages.

Set to false if phrase queries should only be generated when surrounded by double quotes.

Gets or Sets the boolean operator of the QueryParser. In default mode (OR_OPERATOR) terms without any modifiers are considered optional: for example capital of Hungary is equal to capital OR of OR Hungary.

In AND_OPERATOR mode terms are considered to be in conjunction: the above mentioned query is parsed as capital AND of AND Hungary

Returns the default field.

Get or Set the minimum similarity for fuzzy queries. Default is 2f.

Get or Set the prefix length for fuzzy queries. Default is 0.

Get or Set locale used by date range parsing, lowercasing, and other locale-sensitive operations.

By default, the culture is null, which indicates to read the culture on the fly from System.Globalization.CultureInfo.CurrentCulture. This ensures if you change the culture on the current thread, QueryParser will utilize it. You can also explicitly set a culture. Setting the culture to null will restore the default behavior if you have explicitly set a culture.

Whether terms of wildcard, prefix, fuzzy and range queries are to be automatically lower-cased or not. Default is true.

By default QueryParser uses CONSTANT_SCORE_AUTO_REWRITE_DEFAULT when creating a PrefixQuery, WildcardQuery or TermRangeQuery. This implementation is generally preferable because it a) Runs faster b) Does not have the scarcity of terms unduly influence score c) avoids any BooleanQuery.TooManyClausesException exception. However, if your application really needs to use the old-fashioned BooleanQuery expansion rewriting and the above points are not relevant then use this to change the rewrite method.

Gets or Sets the default slop for phrases. If zero, then exact phrase matches are required. Default value is zero.

Get or Set the current time zone for date and time parsing operations.

By default, the time zone is null, which indicates to read the time zone on the fly from System.TimeZoneInfo.Local. This ensures if you change the time zone on the current system, QueryParser will utilize it. You can also explicitly set a time zone. Setting the time zone to null will restore the default behavior if you have explicitly set a time zone.

Returns a string where those characters that QueryParser expects to be escaped are escaped by a preceding

\

Factory method for generating query, given a set of clauses. By default creates a boolean query composed of clauses passed in.

Can be overridden by extending classes, to modify query being returned.

Factory method for generating query, given a set of clauses. By default creates a boolean query composed of clauses passed in.

Can be overridden by extending classes, to modify query being returned.

Returns the date resolution that is used by RangeQueries for the given field. Returns null, if no default or field specific date resolution has been set for the given field.

Base implementation delegates to GetFieldQuery(String, String, Boolean). This method may be overridden, for example, to return a SpanNearQuery instead of a PhraseQuery.

Factory method for generating a query (similar to GetWildcardQuery(String, String)). Called when parser parses an input term token that has the fuzzy suffix (~) appended.

Factory method for generating a query (similar to GetWildcardQuery(String, String)). Called when parser parses an input term token that uses prefix notation; that is, contains a single '*' wildcard character as its last character. Since this is a special case of generic wildcard term, and such a query can be optimized easily, this usually results in a different query object.

Depending on settings, a prefix term may be lower-cased automatically. It will not go through the default Analyzer, however, since normal Analyzers are unlikely to work properly with wildcard templates.

Can be overridden by extending classes, to provide custom handling for wild card queries, which may be necessary due to missing analyzer calls.

Factory method for generating a query. Called when parser parses an input term token that contains a regular expression query.

Depending on settings, pattern term may be lower-cased automatically. It will not go through the default Analyzer, however, since normal Analyzers are unlikely to work properly with regular expression templates.

Can be overridden by extending classes, to provide custom handling for regular expression queries, which may be necessary due to missing analyzer calls.

Factory method for generating a query. Called when parser parses an input term token that contains one or more wildcard characters (? and *), but is not a prefix term token (one that has just a single * character at the end)

Depending on settings, prefix term may be lower-cased automatically. It will not go through the default Analyzer, however, since normal Analyzers are unlikely to work properly with wildcard templates.

Can be overridden by extending classes, to provide custom handling for wildcard queries, which may be necessary due to missing analyzer calls.

Initializes a query parser. Called by the QueryParser constructor

Builds a new BooleanClause instance

Builds a new FuzzyQuery instance

Builds a new MatchAllDocsQuery instance

Builds a new PrefixQuery instance

Builds a new TermRangeQuery instance

Builds a new RegexpQuery instance

Builds a new WildcardQuery instance

Parses a query string, returning a Query.

Gets or Sets the default date resolution used by RangeQueries for fields for which no specific date resolutions has been set. Field specific resolutions can be set with SetDateResolution(String, DateTools.Resolution).

Sets the date resolution used by RangeQueries for a specific field.