org.apache.flink.formats.parquet.vector

类 ParquetColumnarRowSplitReader

java.lang.Object

org.apache.flink.formats.parquet.vector.ParquetColumnarRowSplitReader

所有已实现的接口:

Closeable, AutoCloseable

public class ParquetColumnarRowSplitReader
extends Object
implements Closeable

This reader is used to read a VectorizedColumnBatch from input split.

嵌套类概要

嵌套类

限定符和类型	类和说明
static interface	ParquetColumnarRowSplitReader.ColumnBatchGenerator Interface to gen VectorizedColumnBatch.

构造器概要

构造器

构造器和说明
ParquetColumnarRowSplitReader(boolean utcTimestamp, boolean caseSensitive, org.apache.hadoop.conf.Configuration conf, org.apache.flink.table.types.logical.LogicalType[] selectedTypes, String[] selectedFieldNames, ParquetColumnarRowSplitReader.ColumnBatchGenerator generator, int batchSize, org.apache.hadoop.fs.Path path, long splitStart, long splitLength)

方法概要

限定符和类型	方法和说明
void	close()
org.apache.flink.table.data.ColumnarRowData	nextRecord()
boolean	reachedEnd() Method used to check if the end of the input is reached.
void	seekToRow(long rowCount) Seek to a particular row number.

从类继承的方法 java.lang.Object

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

构造器详细资料

ParquetColumnarRowSplitReader

public ParquetColumnarRowSplitReader(boolean utcTimestamp,
                                     boolean caseSensitive,
                                     org.apache.hadoop.conf.Configuration conf,
                                     org.apache.flink.table.types.logical.LogicalType[] selectedTypes,
                                     String[] selectedFieldNames,
                                     ParquetColumnarRowSplitReader.ColumnBatchGenerator generator,
                                     int batchSize,
                                     org.apache.hadoop.fs.Path path,
                                     long splitStart,
                                     long splitLength)
                              throws IOException

抛出:

IOException

方法详细资料

reachedEnd

public boolean reachedEnd()
                   throws IOException

Method used to check if the end of the input is reached.

返回:

True if the end is reached, otherwise false.

抛出:

IOException - Thrown, if an I/O error occurred.

nextRecord

public org.apache.flink.table.data.ColumnarRowData nextRecord()

seekToRow

public void seekToRow(long rowCount)
               throws IOException

Seek to a particular row number.

抛出:

IOException

close

public void close()
           throws IOException

指定者:

close 在接口中 Closeable

指定者:

close 在接口中 AutoCloseable

抛出:

IOException