Constructor and Description |
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QueryParserUtil() |
Modifier and Type | Method and Description |
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static String |
escape(String s)
Returns a String where those characters that TextParser expects to be
escaped are escaped by a preceding
\ . |
static Query |
parse(String[] queries,
String[] fields,
Analyzer analyzer)
Parses a query which searches on the fields specified.
|
static Query |
parse(String[] queries,
String[] fields,
BooleanClause.Occur[] flags,
Analyzer analyzer)
Parses a query, searching on the fields specified.
|
static Query |
parse(String query,
String[] fields,
BooleanClause.Occur[] flags,
Analyzer analyzer)
Parses a query, searching on the fields specified.
|
public static Query parse(String[] queries, String[] fields, Analyzer analyzer) throws QueryNodeException
If x fields are specified, this effectively constructs:
(field1:query1) (field2:query2) (field3:query3)...(fieldx:queryx)
queries
- Queries strings to parsefields
- Fields to search onanalyzer
- Analyzer to useIllegalArgumentException
- if the length of the queries array differs from the length of the
fields arrayQueryNodeException
public static Query parse(String query, String[] fields, BooleanClause.Occur[] flags, Analyzer analyzer) throws QueryNodeException
Usage:
String[] fields = {"filename", "contents", "description"};
BooleanClause.Occur[] flags = {BooleanClause.Occur.SHOULD,
BooleanClause.Occur.MUST,
BooleanClause.Occur.MUST_NOT};
MultiFieldQueryParser.parse("query", fields, flags, analyzer);
The code above would construct a query:
(filename:query) +(contents:query) -(description:query)
query
- Query string to parsefields
- Fields to search onflags
- Flags describing the fieldsanalyzer
- Analyzer to useIllegalArgumentException
- if the length of the fields array differs from the length of the
flags arrayQueryNodeException
public static Query parse(String[] queries, String[] fields, BooleanClause.Occur[] flags, Analyzer analyzer) throws QueryNodeException
Usage:
String[] query = {"query1", "query2", "query3"};
String[] fields = {"filename", "contents", "description"};
BooleanClause.Occur[] flags = {BooleanClause.Occur.SHOULD,
BooleanClause.Occur.MUST,
BooleanClause.Occur.MUST_NOT};
MultiFieldQueryParser.parse(query, fields, flags, analyzer);
The code above would construct a query:
(filename:query1) +(contents:query2) -(description:query3)
queries
- Queries string to parsefields
- Fields to search onflags
- Flags describing the fieldsanalyzer
- Analyzer to useIllegalArgumentException
- if the length of the queries, fields, and flags array differQueryNodeException
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