Class VersionBlockTreeTermsReader
- java.lang.Object
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- org.apache.lucene.index.Fields
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- org.apache.lucene.codecs.FieldsProducer
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- org.apache.lucene.codecs.idversion.VersionBlockTreeTermsReader
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- All Implemented Interfaces:
java.io.Closeable
,java.lang.AutoCloseable
,java.lang.Iterable<java.lang.String>
,Accountable
public final class VersionBlockTreeTermsReader extends FieldsProducer
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Field Summary
Fields Modifier and Type Field Description private java.util.TreeMap<java.lang.String,VersionFieldReader>
fields
(package private) IndexInput
in
(package private) PostingsReaderBase
postingsReader
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Fields inherited from class org.apache.lucene.index.Fields
EMPTY_ARRAY
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Constructor Summary
Constructors Constructor Description VersionBlockTreeTermsReader(PostingsReaderBase postingsReader, SegmentReadState state)
Sole constructor.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description (package private) java.lang.String
brToString(BytesRef b)
void
checkIntegrity()
Checks consistency of this reader.void
close()
java.util.Collection<Accountable>
getChildResources()
Returns nested resources of this class.java.util.Iterator<java.lang.String>
iterator()
Returns an iterator that will step through all fields names.long
ramBytesUsed()
Return the memory usage of this object in bytes.private static BytesRef
readBytesRef(IndexInput in)
private void
seekDir(IndexInput input)
Seekinput
to the directory offset.int
size()
Returns the number of fields or -1 if the number of distinct field names is unknown.Terms
terms(java.lang.String field)
Get theTerms
for this field.java.lang.String
toString()
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Methods inherited from class org.apache.lucene.codecs.FieldsProducer
getMergeInstance
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Field Detail
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in
final IndexInput in
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postingsReader
final PostingsReaderBase postingsReader
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fields
private final java.util.TreeMap<java.lang.String,VersionFieldReader> fields
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Constructor Detail
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VersionBlockTreeTermsReader
public VersionBlockTreeTermsReader(PostingsReaderBase postingsReader, SegmentReadState state) throws java.io.IOException
Sole constructor.- Throws:
java.io.IOException
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Method Detail
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readBytesRef
private static BytesRef readBytesRef(IndexInput in) throws java.io.IOException
- Throws:
java.io.IOException
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seekDir
private void seekDir(IndexInput input) throws java.io.IOException
Seekinput
to the directory offset.- Throws:
java.io.IOException
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close
public void close() throws java.io.IOException
- Specified by:
close
in interfacejava.lang.AutoCloseable
- Specified by:
close
in interfacejava.io.Closeable
- Specified by:
close
in classFieldsProducer
- Throws:
java.io.IOException
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iterator
public java.util.Iterator<java.lang.String> iterator()
Description copied from class:Fields
Returns an iterator that will step through all fields names. This will not return null.
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terms
public Terms terms(java.lang.String field) throws java.io.IOException
Description copied from class:Fields
Get theTerms
for this field. This will return null if the field does not exist.
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size
public int size()
Description copied from class:Fields
Returns the number of fields or -1 if the number of distinct field names is unknown. If >= 0,Fields.iterator()
will return as many field names.
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brToString
java.lang.String brToString(BytesRef b)
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ramBytesUsed
public long ramBytesUsed()
Description copied from interface:Accountable
Return the memory usage of this object in bytes. Negative values are illegal.
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getChildResources
public java.util.Collection<Accountable> getChildResources()
Description copied from interface:Accountable
Returns nested resources of this class. The result should be a point-in-time snapshot (to avoid race conditions).- See Also:
Accountables
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checkIntegrity
public void checkIntegrity() throws java.io.IOException
Description copied from class:FieldsProducer
Checks consistency of this reader.Note that this may be costly in terms of I/O, e.g. may involve computing a checksum value against large data files.
- Specified by:
checkIntegrity
in classFieldsProducer
- Throws:
java.io.IOException
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toString
public java.lang.String toString()
- Overrides:
toString
in classjava.lang.Object
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