org.apache.lucene.search
Class FieldComparator.NumericComparator<T extends Number>
java.lang.Object
org.apache.lucene.search.FieldComparator<T>
org.apache.lucene.search.FieldComparator.NumericComparator<T>
- Direct Known Subclasses:
- FieldComparator.ByteComparator, FieldComparator.DoubleComparator, FieldComparator.FloatComparator, FieldComparator.IntComparator, FieldComparator.LongComparator, FieldComparator.ShortComparator
- Enclosing class:
- FieldComparator<T>
public abstract static class FieldComparator.NumericComparator<T extends Number>
- extends FieldComparator<T>
Base FieldComparator class for numeric types
Nested classes/interfaces inherited from class org.apache.lucene.search.FieldComparator |
FieldComparator.ByteComparator, FieldComparator.DocComparator, FieldComparator.DoubleComparator, FieldComparator.FloatComparator, FieldComparator.IntComparator, FieldComparator.LongComparator, FieldComparator.NumericComparator<T extends Number>, FieldComparator.RelevanceComparator, FieldComparator.ShortComparator, FieldComparator.TermOrdValComparator, FieldComparator.TermValComparator |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
missingValue
protected final T extends Number missingValue
field
protected final String field
docsWithField
protected Bits docsWithField
FieldComparator.NumericComparator
public FieldComparator.NumericComparator(String field,
T missingValue)
setNextReader
public FieldComparator<T> setNextReader(AtomicReaderContext context)
throws IOException
- Description copied from class:
FieldComparator
- Set a new
AtomicReaderContext
. All subsequent docIDs are relative to
the current reader (you must add docBase if you need to
map it to a top-level docID).
- Specified by:
setNextReader
in class FieldComparator<T extends Number>
- Parameters:
context
- current reader context
- Returns:
- the comparator to use for this segment; most
comparators can just return "this" to reuse the same
comparator across segments
- Throws:
IOException
- if there is a low-level IO error
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