Class DoubleComparator.DoubleLeafComparator
java.lang.Object
NumericComparator<Double>.org.apache.lucene.search.comparators.NumericComparator.NumericLeafComparator
org.apache.lucene.search.comparators.DoubleComparator.DoubleLeafComparator
- All Implemented Interfaces:
LeafFieldComparator
- Enclosing class:
DoubleComparator
public class DoubleComparator.DoubleLeafComparator
extends NumericComparator<Double>.NumericLeafComparator
Leaf comparator for
DoubleComparator that provides skipping functionality-
Field Summary
Fields inherited from class org.apache.lucene.search.comparators.NumericComparator.NumericLeafComparator
docValues -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionprotected longintcompareBottom(int doc) Compare the bottom of the queue with this doc.intcompareTop(int doc) Compare the top value with this doc.voidcopy(int slot, int doc) This method is called when a new hit is competitive.voidsetBottom(int slot) Set the bottom slot, ie the "weakest" (sorted last) entry in the queue.protected longMethods inherited from class org.apache.lucene.search.comparators.NumericComparator.NumericLeafComparator
competitiveIterator, getNumericDocValues, setHitsThresholdReached, setScorer
-
Constructor Details
-
DoubleLeafComparator
- Throws:
IOException
-
-
Method Details
-
setBottom
Description copied from interface:LeafFieldComparatorSet the bottom slot, ie the "weakest" (sorted last) entry in the queue. WhenLeafFieldComparator.compareBottom(int)is called, you should compare against this slot. This will always be called beforeLeafFieldComparator.compareBottom(int).- Specified by:
setBottomin interfaceLeafFieldComparator- Overrides:
setBottomin classNumericComparator<Double>.NumericLeafComparator- Parameters:
slot- the currently weakest (sorted last) slot in the queue- Throws:
IOException
-
compareBottom
Description copied from interface:LeafFieldComparatorCompare the bottom of the queue with this doc. This will only invoked after setBottom has been called. This should return the same result asFieldComparator.compare(int,int)} as if bottom were slot1 and the new document were slot 2.For a search that hits many results, this method will be the hotspot (invoked by far the most frequently).
- Parameters:
doc- that was hit- Returns:
- any
N < 0if the doc's value is sorted after the bottom entry (not competitive), anyN > 0if the doc's value is sorted before the bottom entry and0if they are equal. - Throws:
IOException
-
compareTop
Description copied from interface:LeafFieldComparatorCompare the top value with this doc. This will only invoked after setTopValue has been called. This should return the same result asFieldComparator.compare(int,int)} as if topValue were slot1 and the new document were slot 2. This is only called for searches that use searchAfter (deep paging).- Parameters:
doc- that was hit- Returns:
- any
N < 0if the doc's value is sorted after the top entry (not competitive), anyN > 0if the doc's value is sorted before the top entry and0if they are equal. - Throws:
IOException
-
copy
Description copied from interface:LeafFieldComparatorThis method is called when a new hit is competitive. You should copy any state associated with this document that will be required for future comparisons, into the specified slot.- Specified by:
copyin interfaceLeafFieldComparator- Overrides:
copyin classNumericComparator<Double>.NumericLeafComparator- Parameters:
slot- which slot to copy the hit todoc- docID relative to current reader- Throws:
IOException
-
bottomAsComparableLong
protected long bottomAsComparableLong()- Specified by:
bottomAsComparableLongin classNumericComparator<Double>.NumericLeafComparator
-
topAsComparableLong
protected long topAsComparableLong()- Specified by:
topAsComparableLongin classNumericComparator<Double>.NumericLeafComparator
-