org.apache.lucene.search.spans
Class SpanOrQuery
- Cloneable, Serializable
Matches the union of its clauses.
boolean | equals(Object o)
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void | extractTerms(Set terms) - Expert: adds all terms occuring in this query to the terms set.
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SpanQuery[] | getClauses() - Return the clauses whose spans are matched.
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String | getField() - Returns the name of the field matched by this query.
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Spans | getSpans(IndexReader reader) - Expert: Returns the matches for this query in an index.
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Collection | getTerms() - use extractTerms instead
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int | hashCode()
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Query | rewrite(IndexReader reader) - Expert: called to re-write queries into primitive queries.
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String | toString(String field) - Prints a query to a string, with
field assumed to be the
default field and omitted.
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clone , combine , createWeight , extractTerms , getBoost , getSimilarity , mergeBooleanQueries , rewrite , setBoost , toString , toString , weight |
SpanOrQuery
public SpanOrQuery(SpanQuery[] clauses)
Construct a SpanOrQuery merging the provided clauses.
equals
public boolean equals(Object o)
extractTerms
public void extractTerms(Set terms)
Expert: adds all terms occuring in this query to the terms set. Only
works if this query is in its
rewritten
form.
- extractTerms in interface Query
getClauses
public SpanQuery[] getClauses()
Return the clauses whose spans are matched.
getField
public String getField()
Returns the name of the field matched by this query.
- getField in interface SpanQuery
getSpans
public Spans getSpans(IndexReader reader)
throws IOException
Expert: Returns the matches for this query in an index. Used internally
to search for spans.
- getSpans in interface SpanQuery
getTerms
public Collection getTerms()
use extractTerms instead
Returns a collection of all terms matched by this query.
- getTerms in interface SpanQuery
hashCode
public int hashCode()
rewrite
public Query rewrite(IndexReader reader)
throws IOException
Expert: called to re-write queries into primitive queries. For example,
a PrefixQuery will be rewritten into a BooleanQuery that consists
of TermQuerys.
- rewrite in interface Query
toString
public String toString(String field)
Prints a query to a string, with
field
assumed to be the
default field and omitted.
The representation used is one that is supposed to be readable
by
QueryParser
. However,
there are the following limitations:
- If the query was created by the parser, the printed
representation may not be exactly what was parsed. For example,
characters that need to be escaped will be represented without
the required backslash.
- Some of the more complicated queries (e.g. span queries)
don't have a representation that can be parsed by QueryParser.
- toString in interface Query
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