Class PageReader
- java.lang.Object
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- org.apache.iotdb.tsfile.read.reader.page.PageReader
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- All Implemented Interfaces:
IPageReader
public class PageReader extends java.lang.Object implements IPageReader
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Field Summary
Fields Modifier and Type Field Description protected TSDataTypedataTypeprotected Filterfilterprotected java.nio.ByteBuffertimeBuffertime column in memoryprotected DecodertimeDecoderdecoder for time columnprotected java.nio.ByteBuffervalueBuffervalue column in memoryprotected DecodervalueDecoderdecoder for value column
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Constructor Summary
Constructors Constructor Description PageReader(java.nio.ByteBuffer pageData, TSDataType dataType, Decoder valueDecoder, Decoder timeDecoder, Filter filter)PageReader(PageHeader pageHeader, java.nio.ByteBuffer pageData, TSDataType dataType, Decoder valueDecoder, Decoder timeDecoder, Filter filter)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description TsBlockgetAllSatisfiedData()BatchDatagetAllSatisfiedPageData(boolean ascending)java.util.List<TimeRange>getDeleteIntervalList()Statistics<? extends java.io.Serializable>getStatistics()voidinitTsBlockBuilder(java.util.List<TSDataType> dataTypes)protected booleanisDeleted(long timestamp)booleanisModified()voidsetDeleteIntervalList(java.util.List<TimeRange> list)voidsetFilter(Filter filter)voidsetLimitOffset(PaginationController paginationController)-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.apache.iotdb.tsfile.read.reader.IPageReader
getAllSatisfiedPageData
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Field Detail
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dataType
protected TSDataType dataType
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valueDecoder
protected Decoder valueDecoder
decoder for value column
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timeDecoder
protected Decoder timeDecoder
decoder for time column
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timeBuffer
protected java.nio.ByteBuffer timeBuffer
time column in memory
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valueBuffer
protected java.nio.ByteBuffer valueBuffer
value column in memory
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filter
protected Filter filter
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Constructor Detail
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PageReader
public PageReader(java.nio.ByteBuffer pageData, TSDataType dataType, Decoder valueDecoder, Decoder timeDecoder, Filter filter)
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PageReader
public PageReader(PageHeader pageHeader, java.nio.ByteBuffer pageData, TSDataType dataType, Decoder valueDecoder, Decoder timeDecoder, Filter filter)
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Method Detail
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getAllSatisfiedPageData
public BatchData getAllSatisfiedPageData(boolean ascending) throws java.io.IOException
- Specified by:
getAllSatisfiedPageDatain interfaceIPageReader- Returns:
- the returned BatchData may be empty, but never be null
- Throws:
java.io.IOException
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getAllSatisfiedData
public TsBlock getAllSatisfiedData() throws java.io.IOException
- Specified by:
getAllSatisfiedDatain interfaceIPageReader- Throws:
java.io.IOException
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getStatistics
public Statistics<? extends java.io.Serializable> getStatistics()
- Specified by:
getStatisticsin interfaceIPageReader
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setFilter
public void setFilter(Filter filter)
- Specified by:
setFilterin interfaceIPageReader
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setLimitOffset
public void setLimitOffset(PaginationController paginationController)
- Specified by:
setLimitOffsetin interfaceIPageReader
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setDeleteIntervalList
public void setDeleteIntervalList(java.util.List<TimeRange> list)
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getDeleteIntervalList
public java.util.List<TimeRange> getDeleteIntervalList()
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isModified
public boolean isModified()
- Specified by:
isModifiedin interfaceIPageReader
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initTsBlockBuilder
public void initTsBlockBuilder(java.util.List<TSDataType> dataTypes)
- Specified by:
initTsBlockBuilderin interfaceIPageReader
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isDeleted
protected boolean isDeleted(long timestamp)
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