public class BufferedInputIterator extends Object implements InputIterator
InputIterator.InputIteratorWrapper
Modifier and Type | Field and Description |
---|---|
protected List<Set<BytesRef>> |
contextSets
buffered context set entries
|
protected int |
curPos
current buffer position
|
protected BytesRefArray |
entries
buffered term entries
|
protected long[] |
freqs
buffered weights, parallel with
entries |
protected BytesRefArray |
payloads
buffered payload entries
|
EMPTY
Constructor and Description |
---|
BufferedInputIterator(InputIterator source)
Creates a new iterator, buffering entries from the specified iterator
|
Modifier and Type | Method and Description |
---|---|
Set<BytesRef> |
contexts()
A term's contexts context can be used to filter suggestions.
|
Comparator<BytesRef> |
getComparator()
Return the
BytesRef Comparator used to sort terms provided by the
iterator. |
boolean |
hasContexts()
Returns true if the iterator has contexts
|
boolean |
hasPayloads()
Returns true if the iterator has payloads
|
BytesRef |
next()
Increments the iteration to the next
BytesRef in the iterator. |
BytesRef |
payload()
An arbitrary byte[] to record per suggestion.
|
long |
weight()
A term's weight, higher numbers mean better suggestions.
|
protected BytesRefArray entries
protected BytesRefArray payloads
protected int curPos
protected long[] freqs
entries
public BufferedInputIterator(InputIterator source) throws IOException
IOException
public long weight()
InputIterator
weight
in interface InputIterator
public BytesRef next() throws IOException
BytesRefIterator
BytesRef
in the iterator.
Returns the resulting BytesRef
or null
if the end of
the iterator is reached. The returned BytesRef may be re-used across calls
to next. After this method returns null, do not call it again: the results
are undefined.next
in interface BytesRefIterator
BytesRef
in the iterator or null
if
the end of the iterator is reached.IOException
- If there is a low-level I/O error.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()
BytesRefIterator
BytesRef
Comparator used to sort terms provided by the
iterator. This may return null if there are no items or the iterator is not
sorted. Callers may invoke this method many times, so it's best to cache a
single instance & reuse it.getComparator
in interface BytesRefIterator
public Set<BytesRef> contexts()
InputIterator
contexts
in interface InputIterator
public boolean hasContexts()
InputIterator
hasContexts
in interface InputIterator
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