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java.lang.Object org.apache.lucene.index.Terms org.apache.lucene.codecs.BlockTreeTermsReader.FieldReader
public final class BlockTreeTermsReader.FieldReader
BlockTree's implementation of Terms
.
Field Summary 

Fields inherited from class org.apache.lucene.index.Terms 

EMPTY_ARRAY 
Method Summary  

BlockTreeTermsReader.Stats 
computeStats()
For debugging  used by CheckIndex too 
Comparator<BytesRef> 
getComparator()
Return the BytesRef Comparator used to sort terms provided by the iterator. 
int 
getDocCount()
Returns the number of documents that have at least one term for this field, or 1 if this measure isn't stored by the codec. 
long 
getSumDocFreq()
Returns the sum of TermsEnum.docFreq() for
all terms in this field, or 1 if this measure isn't
stored by the codec. 
long 
getSumTotalTermFreq()
Returns the sum of TermsEnum.totalTermFreq() for
all terms in this field, or 1 if this measure isn't
stored by the codec (or if this fields omits term freq
and positions). 
boolean 
hasFreqs()
Returns true if documents in this field store perdocument term frequency ( DocsEnum.freq() ). 
boolean 
hasOffsets()
Returns true if documents in this field store offsets. 
boolean 
hasPayloads()
Returns true if documents in this field store payloads. 
boolean 
hasPositions()
Returns true if documents in this field store positions. 
TermsEnum 
intersect(CompiledAutomaton compiled,
BytesRef startTerm)
Returns a TermsEnum that iterates over all terms that are accepted by the provided CompiledAutomaton . 
TermsEnum 
iterator(TermsEnum reuse)
Returns an iterator that will step through all terms. 
long 
ramBytesUsed()
Returns approximate RAM bytes used 
long 
size()
Returns the number of terms for this field, or 1 if this measure isn't stored by the codec. 
Methods inherited from class java.lang.Object 

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait 
Method Detail 

public BlockTreeTermsReader.Stats computeStats() throws IOException
IOException
public Comparator<BytesRef> getComparator()
Terms
getComparator
in class Terms
public boolean hasFreqs()
Terms
DocsEnum.freq()
).
hasFreqs
in class Terms
public boolean hasOffsets()
Terms
hasOffsets
in class Terms
public boolean hasPositions()
Terms
hasPositions
in class Terms
public boolean hasPayloads()
Terms
hasPayloads
in class Terms
public TermsEnum iterator(TermsEnum reuse) throws IOException
Terms
iterator
in class Terms
IOException
public long size()
Terms
size
in class Terms
public long getSumTotalTermFreq()
Terms
TermsEnum.totalTermFreq()
for
all terms in this field, or 1 if this measure isn't
stored by the codec (or if this fields omits term freq
and positions). Note that, just like other term
measures, this measure does not take deleted documents
into account.
getSumTotalTermFreq
in class Terms
public long getSumDocFreq()
Terms
TermsEnum.docFreq()
for
all terms in this field, or 1 if this measure isn't
stored by the codec. Note that, just like other term
measures, this measure does not take deleted documents
into account.
getSumDocFreq
in class Terms
public int getDocCount()
Terms
getDocCount
in class Terms
public TermsEnum intersect(CompiledAutomaton compiled, BytesRef startTerm) throws IOException
Terms
CompiledAutomaton
. If the startTerm
is
provided then the returned enum will only accept terms
> startTerm
, but you still must call
next() first to get to the first term. Note that the
provided startTerm
must be accepted by
the automaton.
NOTE: the returned TermsEnum cannot seek
.
intersect
in class Terms
IOException
public long ramBytesUsed()


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