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java.lang.Objectorg.apache.lucene.search.Filter
org.apache.lucene.search.BooleanFilter
public class BooleanFilter
A container Filter that allows Boolean composition of Filters. Filters are allocated into one of three logical constructs; SHOULD, MUST NOT, MUST The results Filter BitSet is constructed as follows: SHOULD Filters are OR'd together The resulting Filter is NOT'd with the NOT Filters The resulting Filter is AND'd with the MUST Filters
| Constructor Summary | |
|---|---|
BooleanFilter()
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| Method Summary | |
|---|---|
void |
add(org.apache.lucene.search.Filter filter,
org.apache.lucene.search.BooleanClause.Occur occur)
|
void |
add(FilterClause filterClause)
Adds a new FilterClause to the Boolean Filter container |
List<FilterClause> |
clauses()
Returns the list of clauses |
boolean |
equals(Object obj)
|
org.apache.lucene.search.DocIdSet |
getDocIdSet(org.apache.lucene.index.IndexReader reader)
Returns the a DocIdSetIterator representing the Boolean composition of the filters that have been added. |
int |
hashCode()
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Iterator<FilterClause> |
iterator()
Returns an iterator on the clauses in this query. |
String |
toString()
Prints a user-readable version of this Filter. |
| Methods inherited from class java.lang.Object |
|---|
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
public BooleanFilter()
| Method Detail |
|---|
public org.apache.lucene.search.DocIdSet getDocIdSet(org.apache.lucene.index.IndexReader reader)
throws IOException
getDocIdSet in class org.apache.lucene.search.FilterIOExceptionpublic void add(FilterClause filterClause)
filterClause - A FilterClause object containing a Filter and an Occur parameter
public final void add(org.apache.lucene.search.Filter filter,
org.apache.lucene.search.BooleanClause.Occur occur)
public List<FilterClause> clauses()
public final Iterator<FilterClause> iterator()
Iterable interface to
make it possible to do:
for (FilterClause clause : booleanFilter) {}
iterator in interface Iterable<FilterClause>public boolean equals(Object obj)
equals in class Objectpublic int hashCode()
hashCode in class Objectpublic String toString()
toString in class Object
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