|
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
ObjectNearSpans
class NearSpans
Calculates spans that match several queries "near" each other. In-order matches score higher than out-of-order matches.
Nested Class Summary | |
---|---|
private class |
NearSpans.SpansCell
Wraps a Spans, and can be used to form a linked list. |
Field Summary | |
---|---|
private NearSpans.SpansCell |
firstCell
|
private boolean |
firstTime
|
private boolean |
inOrder
|
private NearSpans.SpansCell |
lastCell
|
private boolean |
more
|
private int |
nCellsInList
|
private List |
ordered
|
private SpanNearQuery |
query
|
private Similarity |
similarity
|
private int |
slop
|
private int |
totalLength
|
private float |
totalScore
|
private int |
totalSlop
|
Constructor Summary | |
---|---|
NearSpans(SpanNearQuery query,
IndexReader reader,
Searcher searcher)
|
Method Summary | |
---|---|
private boolean |
advanceOneCell()
|
private boolean |
atMatch()
|
private boolean |
checkSlop()
|
int |
doc()
Returns the document number of the current match. |
int |
end()
Returns the end position of the current match. |
Explanation |
explain()
Returns an explanation of how the score was arrived at. |
private void |
initList(int target)
|
private boolean |
matchIsOrdered()
|
boolean |
next()
Move to the next match, returning true iff any such exists. |
float |
score()
Returns the score of the current match. |
boolean |
skipTo(int target)
Skips to the first match beyond the current, whose document number is greater than or equal to target. |
int |
start()
Returns the start position of the current match. |
String |
toString()
|
private int |
totalSlop()
|
Methods inherited from class Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
---|
private SpanNearQuery query
private Similarity similarity
private List ordered
private int slop
private boolean inOrder
private NearSpans.SpansCell firstCell
private NearSpans.SpansCell lastCell
private int nCellsInList
private int totalLength
private float totalScore
private int totalSlop
private boolean more
private boolean firstTime
Constructor Detail |
---|
public NearSpans(SpanNearQuery query, IndexReader reader, Searcher searcher) throws IOException
IOException
Method Detail |
---|
public boolean next() throws IOException
Spans
next
in interface Spans
IOException
private boolean advanceOneCell() throws IOException
IOException
public boolean skipTo(int target) throws IOException
Spans
Returns true iff there is such a match.
Behaves as if written:
boolean skipTo(int target) { do { if (!next()) return false; } while (target > doc()); return true; }Most implementations are considerably more efficient than that.
skipTo
in interface Spans
IOException
public int doc()
Spans
doc
in interface Spans
public int start()
Spans
start
in interface Spans
public int end()
Spans
end
in interface Spans
public float score()
Spans
score
in interface Spans
public String toString()
toString
in class Object
private void initList(int target) throws IOException
IOException
private boolean atMatch()
private boolean checkSlop()
private boolean matchIsOrdered()
private int totalSlop()
public Explanation explain() throws IOException
Spans
explain
in interface Spans
IOException
|
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |