public abstract class ValueSource extends Object
Constructor and Description |
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ValueSource() |
Modifier and Type | Method and Description |
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void |
createWeight(Map context,
IndexSearcher searcher)
Implementations should propagate createWeight to sub-ValueSources which can optionally store
weight info in the context.
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abstract String |
description()
description of field, used in explain()
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abstract boolean |
equals(Object o) |
SortField |
getSortField(boolean reverse)
EXPERIMENTAL: This method is subject to change.
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abstract FunctionValues |
getValues(Map context,
AtomicReaderContext readerContext)
Gets the values for this reader and the context that was previously
passed to createWeight()
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abstract int |
hashCode() |
static Map |
newContext(IndexSearcher searcher)
Returns a new non-threadsafe context map.
|
String |
toString() |
public abstract FunctionValues getValues(Map context, AtomicReaderContext readerContext) throws IOException
IOException
public abstract String description()
public void createWeight(Map context, IndexSearcher searcher) throws IOException
IOException
public static Map newContext(IndexSearcher searcher)
public SortField getSortField(boolean reverse)
Get the SortField for this ValueSource. Uses the getValues(java.util.Map, AtomicReaderContext)
to populate the SortField.
reverse
- true if this is a reverse sort.SortField
for the ValueSourceCopyright © 2000-2014 Apache Software Foundation. All Rights Reserved.