Package org.apache.iotdb.db.mpp.transformation.datastructure.row

Class SerializableRowRecordList

java.lang.Object

org.apache.iotdb.db.mpp.transformation.datastructure.row.SerializableRowRecordList

All Implemented Interfaces:

SerializableList

public class SerializableRowRecordList
extends java.lang.Object
implements SerializableList

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.iotdb.db.mpp.transformation.datastructure.SerializableList

SerializableList.SerializationRecorder

Field Summary

Fields

Modifier and Type	Field	Description
protected static int	MIN_ARRAY_HEADER_SIZE
protected static int	MIN_OBJECT_HEADER_SIZE

Fields inherited from interface org.apache.iotdb.db.mpp.transformation.datastructure.SerializableList

INITIAL_BYTE_ARRAY_LENGTH_FOR_MEMORY_CONTROL

Method Summary

Modifier and Type	Method	Description
protected static int	calculateCapacity(org.apache.iotdb.tsfile.file.metadata.enums.TSDataType[] dataTypes, float memoryLimitInMB, int byteArrayLengthForMemoryControl)	Calculate the number of rows that can be cached given the memory limit.
void	deserialize(java.nio.ByteBuffer byteBuffer)
java.lang.Object[]	getRowRecord(int index)
SerializableList.SerializationRecorder	getSerializationRecorder()
long	getTime(int index)
void	init()
static SerializableRowRecordList	newSerializableRowRecordList(long queryId, org.apache.iotdb.tsfile.file.metadata.enums.TSDataType[] dataTypes, int internalRowRecordListCapacity)
void	put(java.lang.Object[] rowRecord)
void	release()
void	serialize(org.apache.iotdb.tsfile.utils.PublicBAOS outputStream)
int	size()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.iotdb.db.mpp.transformation.datastructure.SerializableList

deserialize, serialize

Field Detail

MIN_OBJECT_HEADER_SIZE

protected static final int MIN_OBJECT_HEADER_SIZE

See Also:

Constant Field Values

MIN_ARRAY_HEADER_SIZE

protected static final int MIN_ARRAY_HEADER_SIZE

See Also:

Constant Field Values

Method Detail

newSerializableRowRecordList

public static SerializableRowRecordList newSerializableRowRecordList(long queryId,
                                                                     org.apache.iotdb.tsfile.file.metadata.enums.TSDataType[] dataTypes,
                                                                     int internalRowRecordListCapacity)

calculateCapacity

protected static int calculateCapacity(org.apache.iotdb.tsfile.file.metadata.enums.TSDataType[] dataTypes,
                                       float memoryLimitInMB,
                                       int byteArrayLengthForMemoryControl)
                                throws QueryProcessException

Calculate the number of rows that can be cached given the memory limit.

Parameters:

dataTypes - Data types of columns.

memoryLimitInMB - Memory limit.

byteArrayLengthForMemoryControl - Max memory usage for a TSDataType.TEXT.

Returns:

Number of rows that can be cached.

Throws:

QueryProcessException

size

public int size()

getRowRecord

public java.lang.Object[] getRowRecord(int index)

getTime

public long getTime(int index)

put

public void put(java.lang.Object[] rowRecord)

release

public void release()

Specified by:

release in interface SerializableList

init

public void init()

Specified by:

init in interface SerializableList

serialize

public void serialize(org.apache.iotdb.tsfile.utils.PublicBAOS outputStream)
               throws java.io.IOException

Specified by:

serialize in interface SerializableList

Throws:

java.io.IOException

deserialize

public void deserialize(java.nio.ByteBuffer byteBuffer)

Specified by:

deserialize in interface SerializableList

getSerializationRecorder

public SerializableList.SerializationRecorder getSerializationRecorder()

Specified by:

getSerializationRecorder in interface SerializableList