Package org.apache.lucene.index
Class EmptyDocValuesProducer
java.lang.Object
org.apache.lucene.codecs.DocValuesProducer
org.apache.lucene.index.EmptyDocValuesProducer
- All Implemented Interfaces:
Closeable,AutoCloseable
Abstract base class implementing a
DocValuesProducer that has no doc values.-
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoidChecks consistency of this producervoidclose()Closes this doc values producer.ReturnsBinaryDocValuesfor this field.getNumeric(FieldInfo field) ReturnsNumericDocValuesfor this field.getSkipper(FieldInfo field) Returns aDocValuesSkipperfor this field.ReturnsSortedDocValuesfor this field.getSortedNumeric(FieldInfo field) ReturnsSortedNumericDocValuesfor this field.getSortedSet(FieldInfo field) ReturnsSortedSetDocValuesfor this field.Methods inherited from class org.apache.lucene.codecs.DocValuesProducer
getMergeInstance
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Constructor Details
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EmptyDocValuesProducer
protected EmptyDocValuesProducer()Sole constructor
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Method Details
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getNumeric
Description copied from class:DocValuesProducerReturnsNumericDocValuesfor this field. The returned instance need not be thread-safe: it will only be used by a single thread. The behavior is undefined if the doc values type of the given field is notDocValuesType.NUMERIC. The return value is nevernull.- Specified by:
getNumericin classDocValuesProducer- Throws:
IOException
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getBinary
Description copied from class:DocValuesProducerReturnsBinaryDocValuesfor this field. The returned instance need not be thread-safe: it will only be used by a single thread. The behavior is undefined if the doc values type of the given field is notDocValuesType.BINARY. The return value is nevernull.- Specified by:
getBinaryin classDocValuesProducer- Throws:
IOException
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getSorted
Description copied from class:DocValuesProducerReturnsSortedDocValuesfor this field. The returned instance need not be thread-safe: it will only be used by a single thread. The behavior is undefined if the doc values type of the given field is notDocValuesType.SORTED. The return value is nevernull.- Specified by:
getSortedin classDocValuesProducer- Throws:
IOException
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getSortedNumeric
Description copied from class:DocValuesProducerReturnsSortedNumericDocValuesfor this field. The returned instance need not be thread-safe: it will only be used by a single thread. The behavior is undefined if the doc values type of the given field is notDocValuesType.SORTED_NUMERIC. The return value is nevernull.- Specified by:
getSortedNumericin classDocValuesProducer- Throws:
IOException
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getSortedSet
Description copied from class:DocValuesProducerReturnsSortedSetDocValuesfor this field. The returned instance need not be thread-safe: it will only be used by a single thread. The behavior is undefined if the doc values type of the given field is notDocValuesType.SORTED_SET. The return value is nevernull.- Specified by:
getSortedSetin classDocValuesProducer- Throws:
IOException
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getSkipper
Description copied from class:DocValuesProducerReturns aDocValuesSkipperfor this field. The returned instance need not be thread-safe: it will only be used by a single thread. The return value is undefined ifFieldInfo.docValuesSkipIndexType()returnsDocValuesSkipIndexType.NONE.- Specified by:
getSkipperin classDocValuesProducer
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checkIntegrity
public void checkIntegrity()Description copied from class:DocValuesProducerChecks consistency of this producerNote that this may be costly in terms of I/O, e.g. may involve computing a checksum value against large data files.
- Specified by:
checkIntegrityin classDocValuesProducer
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close
public void close()Closes this doc values producer.
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