Class STBlockReader
java.lang.Object
org.apache.lucene.index.TermsEnum
org.apache.lucene.index.BaseTermsEnum
org.apache.lucene.codecs.uniformsplit.BlockReader
org.apache.lucene.codecs.uniformsplit.sharedterms.STBlockReader
- All Implemented Interfaces:
Accountable,BytesRefIterator
- Direct Known Subclasses:
STMergingBlockReader
Reads terms blocks with the Shared Terms format.
- See Also:
- WARNING: This API is experimental and might change in incompatible ways in the next release.
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Nested Class Summary
Nested classes/interfaces inherited from class org.apache.lucene.index.TermsEnum
TermsEnum.SeekStatus -
Field Summary
FieldsFields inherited from class org.apache.lucene.codecs.uniformsplit.BlockReader
blockDecoder, blockFirstLineStart, blockHeader, blockHeaderReader, blockInput, blockLine, blockLineReader, blockReadBuffer, blockStartFP, dictionaryBrowser, dictionaryBrowserSupplier, fieldMetadata, forcedTerm, lineIndexInBlock, postingsReader, scratchBlockBytes, scratchBlockLine, scratchTermState, termState, termStateForced, termStateSerializer, termStatesReadBufferFields inherited from interface org.apache.lucene.util.Accountable
NULL_ACCOUNTABLE -
Constructor Summary
ConstructorsConstructorDescriptionSTBlockReader(IndexDictionary.BrowserSupplier dictionaryBrowserSupplier, IndexInput blockInput, PostingsReaderBase postingsReader, FieldMetadata fieldMetadata, BlockDecoder blockDecoder, FieldInfos fieldInfos) -
Method Summary
Modifier and TypeMethodDescriptionprotected STBlockLine.Serializerprotected booleanisBeyondLastTerm(BytesRef searchedTerm, long blockStartFP) Indicates whether the searched term is beyond the last term of the field.next()protected BytesRefnextTerm()Moves to the next term line and reads it, whichever are the corresponding fields.protected BlockTermStateReads theBlockTermStateon the current line for this reader's field.booleanMethods inherited from class org.apache.lucene.codecs.uniformsplit.BlockReader
clearTermState, compareToMiddleAndJump, createBlockHeaderSerializer, createDeltaBaseTermStateSerializer, decodeBlockBytesIfNeeded, docFreq, getOrCreateDictionaryBrowser, impacts, initializeBlockReadLazily, initializeHeader, isCurrentTerm, newCorruptIndexException, ord, postings, ramBytesUsed, readHeader, readLineInBlock, readTermStateIfNotRead, seekExact, seekExact, seekInBlock, seekInBlock, term, termState, totalTermFreqMethods inherited from class org.apache.lucene.index.BaseTermsEnum
attributes, prepareSeekExactMethods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface org.apache.lucene.util.Accountable
getChildResources
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Field Details
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fieldInfos
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Constructor Details
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STBlockReader
public STBlockReader(IndexDictionary.BrowserSupplier dictionaryBrowserSupplier, IndexInput blockInput, PostingsReaderBase postingsReader, FieldMetadata fieldMetadata, BlockDecoder blockDecoder, FieldInfos fieldInfos) throws IOException - Throws:
IOException
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Method Details
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next
- Specified by:
nextin interfaceBytesRefIterator- Overrides:
nextin classBlockReader- Throws:
IOException
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nextTerm
Moves to the next term line and reads it, whichever are the corresponding fields. The term details are not read yet. They will be read only when needed withBlockReader.readTermStateIfNotRead().- Overrides:
nextTermin classBlockReader- Returns:
- The read term bytes.
- Throws:
IOException
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seekCeil
- Overrides:
seekCeilin classBlockReader- Throws:
IOException
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seekExact
- Overrides:
seekExactin classBlockReader- Throws:
IOException
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isBeyondLastTerm
Description copied from class:BlockReaderIndicates whether the searched term is beyond the last term of the field.- Overrides:
isBeyondLastTermin classBlockReader- Parameters:
blockStartFP- The current block start file pointer.
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createBlockLineSerializer
- Overrides:
createBlockLineSerializerin classBlockReader
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readTermState
Reads theBlockTermStateon the current line for this reader's field.- Overrides:
readTermStatein classBlockReader- Returns:
- The
BlockTermState; or null if the term does not occur for the field. - Throws:
IOException
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