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java.lang.Object | +--org.apache.lucene.search.Query | +--org.apache.lucene.search.PhraseQuery
A Query that matches documents containing a particular sequence of terms.
This may be combined with other terms with a BooleanQuery
.
Fields inherited from class org.apache.lucene.search.Query |
boost |
Constructor Summary | |
PhraseQuery()
Constructs an empty phrase query. |
Method Summary | |
void |
add(Term term)
Adds a term to the end of the query phrase. |
int |
getSlop()
Returns the slop. |
void |
setSlop(int s)
Sets the number of other words permitted between words in query phrase. |
String |
toString(String f)
Prints a user-readable version of this query. |
Methods inherited from class org.apache.lucene.search.Query |
getBoost, setBoost |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public PhraseQuery()
Method Detail |
public final void setSlop(int s)
WITHIN
or NEAR
operator.
The slop is in fact an edit-distance, where the units correspond to moves of terms in the query phrase out of position. For example, to switch the order of two words requires two moves (the first move places the words atop one another), so to permit re-orderings of phrases, the slop must be at least two.
More exact matches are scored higher than sloppier matches, thus search results are sorted by exactness.
The slop is zero by default, requiring exact matches.
public final int getSlop()
public final void add(Term term)
public final String toString(String f)
toString
in class Query
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