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java.lang.Object org.apache.lucene.search.suggest.SortedInputIterator
public class SortedInputIterator
This wrapper buffers incoming elements and makes sure they are sorted based on given comparator.
Nested Class Summary |
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Nested classes/interfaces inherited from interface org.apache.lucene.search.suggest.InputIterator |
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InputIterator.InputIteratorWrapper |
Field Summary |
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Fields inherited from interface org.apache.lucene.search.suggest.InputIterator |
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EMPTY |
Constructor Summary | |
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SortedInputIterator(InputIterator source)
Creates a new sorted wrapper, using BytesRef.getUTF8SortedAsUnicodeComparator() for
sorting. |
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SortedInputIterator(InputIterator source,
Comparator<BytesRef> comparator)
Creates a new sorted wrapper, sorting by BytesRef (ascending) then cost (ascending). |
Method Summary | |
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protected long |
decode(BytesRef scratch,
ByteArrayDataInput tmpInput)
decodes the weight at the current position |
protected BytesRef |
decodePayload(BytesRef scratch,
ByteArrayDataInput tmpInput)
decodes the payload at the current position |
protected void |
encode(Sort.ByteSequencesWriter writer,
ByteArrayDataOutput output,
byte[] buffer,
BytesRef spare,
BytesRef payload,
long weight)
encodes an entry (bytes+(payload)+weight) to the provided writer |
Comparator<BytesRef> |
getComparator()
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boolean |
hasPayloads()
Returns true if the iterator has payloads |
BytesRef |
next()
|
BytesRef |
payload()
An arbitrary byte[] to record per suggestion. |
long |
weight()
A term's weight, higher numbers mean better suggestions. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public SortedInputIterator(InputIterator source) throws IOException
BytesRef.getUTF8SortedAsUnicodeComparator()
for
sorting.
IOException
public SortedInputIterator(InputIterator source, Comparator<BytesRef> comparator) throws IOException
IOException
Method Detail |
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public BytesRef next() throws IOException
next
in interface BytesRefIterator
IOException
public long weight()
InputIterator
weight
in interface InputIterator
public BytesRef payload()
InputIterator
Lookup.LookupResult.payload
to retrieve the payload
for each suggestion.
payload
in interface InputIterator
public boolean hasPayloads()
InputIterator
hasPayloads
in interface InputIterator
public Comparator<BytesRef> getComparator()
getComparator
in interface BytesRefIterator
protected void encode(Sort.ByteSequencesWriter writer, ByteArrayDataOutput output, byte[] buffer, BytesRef spare, BytesRef payload, long weight) throws IOException
IOException
protected long decode(BytesRef scratch, ByteArrayDataInput tmpInput)
protected BytesRef decodePayload(BytesRef scratch, ByteArrayDataInput tmpInput)
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