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java.lang.Objectorg.apache.lucene.search.Filter
org.apache.lucene.misc.ChainedFilter
public class ChainedFilter
Allows multiple Filter
s to be chained.
Logical operations such as NOT and XOR
are applied between filters. One operation can be used
for all filters, or a specific operation can be declared
for each filter.
Order in which filters are called depends on the position of the filter in the chain. It's probably more efficient to place the most restrictive filters /least computationally-intensive filters first.
Field Summary | |
---|---|
static int |
AND
|
static int |
ANDNOT
|
static int |
DEFAULT
Logical operation when none is declared. |
static int |
OR
|
static int |
XOR
|
Constructor Summary | |
---|---|
ChainedFilter(Filter[] chain)
Ctor. |
|
ChainedFilter(Filter[] chain,
int logic)
Ctor. |
|
ChainedFilter(Filter[] chain,
int[] logicArray)
Ctor. |
Method Summary | |
---|---|
protected DocIdSet |
finalResult(OpenBitSetDISI result,
int maxDocs)
Provide a SortedVIntList when it is definitely smaller than an OpenBitSet |
DocIdSet |
getDocIdSet(IndexReader reader)
Filter.getDocIdSet(org.apache.lucene.index.IndexReader) . |
java.lang.String |
toString()
|
Methods inherited from class org.apache.lucene.search.Filter |
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bits |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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public static final int OR
public static final int AND
public static final int ANDNOT
public static final int XOR
public static int DEFAULT
Constructor Detail |
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public ChainedFilter(Filter[] chain)
chain
- The chain of filterspublic ChainedFilter(Filter[] chain, int[] logicArray)
chain
- The chain of filterslogicArray
- Logical operations to apply between filterspublic ChainedFilter(Filter[] chain, int logic)
chain
- The chain of filterslogic
- Logicial operation to apply to ALL filtersMethod Detail |
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public DocIdSet getDocIdSet(IndexReader reader) throws java.io.IOException
Filter.getDocIdSet(org.apache.lucene.index.IndexReader)
.
getDocIdSet
in class Filter
java.io.IOException
protected DocIdSet finalResult(OpenBitSetDISI result, int maxDocs)
public java.lang.String toString()
toString
in class java.lang.Object
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