org.apache.paimon.format.parquet.reader

类 NestedPrimitiveColumnReader

java.lang.Object

org.apache.paimon.format.parquet.reader.NestedPrimitiveColumnReader

所有已实现的接口:

ColumnReader<org.apache.paimon.data.columnar.writable.WritableColumnVector>

public class NestedPrimitiveColumnReader
extends Object
implements ColumnReader<org.apache.paimon.data.columnar.writable.WritableColumnVector>

Reader to read nested primitive column.

嵌套类概要

嵌套类

限定符和类型	类和说明
protected static class	NestedPrimitiveColumnReader.NullIntIterator Reading zero always.
protected static class	NestedPrimitiveColumnReader.RLEIntIterator Reading int from RunLengthBitPackingHybridDecoder.
protected static class	NestedPrimitiveColumnReader.ValuesReaderIntIterator Reading int from ValuesReader.

构造器概要

构造器

构造器和说明
NestedPrimitiveColumnReader(org.apache.parquet.column.ColumnDescriptor descriptor, org.apache.parquet.column.page.PageReader pageReader, boolean isUtcTimestamp, org.apache.parquet.schema.Type parquetType, org.apache.paimon.types.DataType dataType, boolean readRowField, boolean readMapKey)

方法概要

限定符和类型	方法和说明
LevelDelegation	getLevelDelegation()
org.apache.paimon.data.columnar.writable.WritableColumnVector	readAndNewVector(int readNumber, org.apache.paimon.data.columnar.writable.WritableColumnVector vector)
protected void	readPage()
void	readToVector(int readNumber, org.apache.paimon.data.columnar.writable.WritableColumnVector vector)

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

NestedPrimitiveColumnReader

public NestedPrimitiveColumnReader(org.apache.parquet.column.ColumnDescriptor descriptor,
                                   org.apache.parquet.column.page.PageReader pageReader,
                                   boolean isUtcTimestamp,
                                   org.apache.parquet.schema.Type parquetType,
                                   org.apache.paimon.types.DataType dataType,
                                   boolean readRowField,
                                   boolean readMapKey)
                            throws IOException

抛出:

IOException

方法详细资料

readToVector

public void readToVector(int readNumber,
                         org.apache.paimon.data.columnar.writable.WritableColumnVector vector)
                  throws IOException

指定者:

readToVector 在接口中 ColumnReader<org.apache.paimon.data.columnar.writable.WritableColumnVector>

参数:

readNumber - number to read.

vector - vector to write.

抛出:

IOException

readAndNewVector

public org.apache.paimon.data.columnar.writable.WritableColumnVector readAndNewVector(int readNumber,
                                                                                      org.apache.paimon.data.columnar.writable.WritableColumnVector vector)
                                                                               throws IOException

抛出:

IOException

getLevelDelegation

public LevelDelegation getLevelDelegation()

readPage

protected void readPage()