org.apache.iotdb.db.utils

类 QueryDataSetUtils

java.lang.Object

org.apache.iotdb.db.utils.QueryDataSetUtils

public class QueryDataSetUtils
extends Object

TimeValuePairUtils to convert between thrift format and TsFile format.

方法概要

限定符和类型	方法和说明
static org.apache.iotdb.service.rpc.thrift.TSQueryDataSet	convertQueryDataSetByFetchSize(QueryDataSet queryDataSet, int fetchSize, WatermarkEncoder watermarkEncoder)
static BitMap[]	readBitMapsFromBuffer(ByteBuffer buffer, int columns, int size)
static long[]	readTimesFromBuffer(ByteBuffer buffer, int size)
static Object[]	readValuesFromBuffer(ByteBuffer buffer, List<Integer> types, int columns, int size)
static Object[]	readValuesFromBuffer(ByteBuffer buffer, TSDataType[] types, int columns, int size)

从类继承的方法 java.lang.Object

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

方法详细资料

convertQueryDataSetByFetchSize

public static org.apache.iotdb.service.rpc.thrift.TSQueryDataSet convertQueryDataSetByFetchSize(QueryDataSet queryDataSet,
                                                                                                int fetchSize,
                                                                                                WatermarkEncoder watermarkEncoder)
                                                                                         throws IOException

抛出:

IOException

readTimesFromBuffer

public static long[] readTimesFromBuffer(ByteBuffer buffer,
                                         int size)

readBitMapsFromBuffer

public static BitMap[] readBitMapsFromBuffer(ByteBuffer buffer,
                                             int columns,
                                             int size)

readValuesFromBuffer

public static Object[] readValuesFromBuffer(ByteBuffer buffer,
                                            List<Integer> types,
                                            int columns,
                                            int size)

readValuesFromBuffer

public static Object[] readValuesFromBuffer(ByteBuffer buffer,
                                            TSDataType[] types,
                                            int columns,
                                            int size)

参数:

buffer - data values

columns - column number

size - value count in each column