Package org.apache.iotdb.tsfile.read.reader.page

Class LazyLoadAlignedPagePointReader

java.lang.Object

org.apache.iotdb.tsfile.read.reader.page.LazyLoadAlignedPagePointReader

All Implemented Interfaces:

IPointReader

public class LazyLoadAlignedPagePointReader
extends Object
implements IPointReader

This class is used to read data of aligned-series row by row. It won't deserialize all data point of one page in memory. In contrast, it constructs row one by one as needed

Constructor Summary

Constructors

Constructor	Description
LazyLoadAlignedPagePointReader(TimePageReader timeReader, List<ValuePageReader> valueReaders)

Method Summary

Modifier and Type	Method	Description
void	close()
TimeValuePair	currentTimeValuePair()
boolean	hasNextTimeValuePair()
TimeValuePair	nextTimeValuePair()

Methods inherited from class java.lang.Object

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

Constructor Detail

LazyLoadAlignedPagePointReader

public LazyLoadAlignedPagePointReader(TimePageReader timeReader,
                                      List<ValuePageReader> valueReaders)
                               throws IOException

Throws:

IOException

Method Detail

hasNextTimeValuePair

public boolean hasNextTimeValuePair()
                             throws IOException

Specified by:

hasNextTimeValuePair in interface IPointReader

Throws:

IOException

nextTimeValuePair

public TimeValuePair nextTimeValuePair()
                                throws IOException

Specified by:

nextTimeValuePair in interface IPointReader

Throws:

IOException

currentTimeValuePair

public TimeValuePair currentTimeValuePair()
                                   throws IOException

Specified by:

currentTimeValuePair in interface IPointReader

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface IPointReader

Throws:

IOException