Package org.apache.iotdb.tsfile.write.writer

Class ForceAppendTsFileWriter

java.lang.Object

org.apache.iotdb.tsfile.write.writer.TsFileIOWriter

org.apache.iotdb.tsfile.write.writer.ForceAppendTsFileWriter

All Implemented Interfaces:

AutoCloseable

public class ForceAppendTsFileWriter
extends TsFileIOWriter

ForceAppendTsFileWriter opens a COMPLETE TsFile, reads and truncate its metadata to support appending new data.

Field Summary

Fields inherited from class org.apache.iotdb.tsfile.write.writer.TsFileIOWriter

canWrite, CHUNK_METADATA_TEMP_FILE_SUFFIX, chunkGroupMetadataList, chunkMetadataList, chunkMetadataTempFile, config, currentChunkMetadata, currentChunkMetadataSize, enableMemoryControl, endPosInCMTForDevice, file, hasChunkMetadataInDisk, MAGIC_STRING_BYTES, maxMetadataSize, out, pathCount, tempOutput, VERSION_NUMBER_BYTE

Constructor Summary

Constructors

Constructor	Description
ForceAppendTsFileWriter(File file)

Method Summary

Modifier and Type	Method	Description
void	doTruncate()
long	getTruncatePosition()

Methods inherited from class org.apache.iotdb.tsfile.write.writer.TsFileIOWriter

canWrite, checkMetadataSizeAndMayFlush, close, endChunkGroup, endCurrentChunk, endFile, filterChunks, flush, getChunkGroupMetadataList, getChunkMetadataListOfCurrentDeviceInMemory, getCurrentChunkGroupDeviceId, getDeviceChunkMetadataMap, getDeviceTimeseriesMetadataMap, getFile, getIOWriterOut, getMaxPlanIndex, getMinPlanIndex, getPos, getTsFileOutput, isWritingChunkGroup, mark, reset, setFile, setMaxPlanIndex, setMinPlanIndex, sortAndFlushChunkMetadata, startChunkGroup, startFile, startFlushChunk, truncate, writeBytesToStream, writeChunk, writeChunk, writeEmptyValueChunk, writePlanIndices

Methods inherited from class java.lang.Object

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

Constructor Detail

ForceAppendTsFileWriter

public ForceAppendTsFileWriter(File file)
                        throws IOException

Throws:

IOException

Method Detail

doTruncate

public void doTruncate()
                throws IOException

Throws:

IOException

getTruncatePosition

public long getTruncatePosition()