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java.lang.Objectorg.apache.solr.search.HashDocSet
public final class HashDocSet
HashDocSet represents an unordered set of Lucene Document Ids
using a primitive int hash table. It can be a better choice if there are few docs
in the set because it takes up less memory and is faster to iterate and take
set intersections.
| Constructor Summary | |
|---|---|
HashDocSet(HashDocSet set)
|
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HashDocSet(int[] docs,
int offset,
int len)
Create a HashDocSet from a list of *unique* ids |
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HashDocSet(int[] docs,
int offset,
int len,
float inverseLoadFactor)
Create a HashDocSet from a list of *unique* ids |
|
| Method Summary | |
|---|---|
void |
add(int doc)
Adds the specified document if it is not currently in the DocSet (optional operation). |
void |
addUnique(int doc)
Adds a document the caller knows is not currently in the DocSet (optional operation). |
DocSet |
andNot(DocSet other)
Returns the documents in this set that are not in the other set. |
int |
andNotSize(DocSet other)
Returns the number of documents in this set that are not in the other set. |
protected HashDocSet |
clone()
|
boolean |
equals(Object obj)
|
boolean |
exists(int doc)
Returns true if a document is in the DocSet. |
OpenBitSet |
getBits()
Inefficient base implementation. |
Filter |
getTopFilter()
Returns a Filter for use in Lucene search methods, assuming this DocSet was generated from the top-level MultiReader that the Lucene search methods will be invoked with. |
DocSet |
intersection(DocSet other)
Returns the intersection of this set with another set. |
int |
intersectionSize(DocSet other)
Returns the number of documents of the intersection of this set with another set. |
boolean |
intersects(DocSet other)
Returns true if these sets have any elements in common |
DocIterator |
iterator()
Returns an iterator that may be used to iterate over all of the documents in the set. |
long |
memSize()
Returns the approximate amount of memory taken by this DocSet. |
void |
setBitsOn(OpenBitSet target)
Takes the docs from this set and sets those bits on the target OpenBitSet. |
int |
size()
Returns the number of documents in the set. |
DocSet |
union(DocSet other)
Returns the union of this set with another set. |
int |
unionSize(DocSet other)
Returns the number of documents of the union of this set with another set. |
| Methods inherited from class java.lang.Object |
|---|
finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public HashDocSet(HashDocSet set)
public HashDocSet(int[] docs,
int offset,
int len)
public HashDocSet(int[] docs,
int offset,
int len,
float inverseLoadFactor)
| Method Detail |
|---|
public boolean exists(int doc)
DocSet
public int size()
DocSet
public DocIterator iterator()
DocSetThe order of the documents returned by this iterator is non-deterministic, and any scoring information is meaningless
public long memSize()
DocSet
public DocSet intersection(DocSet other)
DocSet
intersection in interface DocSetpublic int intersectionSize(DocSet other)
DocSet
intersectionSize in interface DocSetpublic boolean intersects(DocSet other)
DocSet
intersects in interface DocSetpublic DocSet andNot(DocSet other)
DocSet
andNot in interface DocSetpublic DocSet union(DocSet other)
DocSet
union in interface DocSetprotected HashDocSet clone()
clone in class Objectpublic boolean equals(Object obj)
equals in class Objectpublic void add(int doc)
DocSet
add in interface DocSetSolrException - Base implementation does not allow modificationsDocSet.addUnique(int)public void addUnique(int doc)
DocSet
This method may be faster then add(doc) in some
implementaions provided the caller is certain of the precondition.
addUnique in interface DocSetSolrException - Base implementation does not allow modificationsDocSet.add(int)public OpenBitSet getBits()
getBits in interface DocSetBitDocSet.getBits()public int unionSize(DocSet other)
DocSet
unionSize in interface DocSetpublic int andNotSize(DocSet other)
DocSet
andNotSize in interface DocSetpublic Filter getTopFilter()
DocSet
getTopFilter in interface DocSetpublic void setBitsOn(OpenBitSet target)
DocSet
setBitsOn in interface DocSet
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