org.apache.paimon.format.parquet.reader

类 FixedLenBytesColumnReader<VECTOR extends org.apache.paimon.data.columnar.writable.WritableColumnVector>

java.lang.Object

org.apache.paimon.format.parquet.reader.AbstractColumnReader<VECTOR>

org.apache.paimon.format.parquet.reader.FixedLenBytesColumnReader<VECTOR>

所有已实现的接口:

ColumnReader<VECTOR>

public class FixedLenBytesColumnReader<VECTOR extends org.apache.paimon.data.columnar.writable.WritableColumnVector>
extends AbstractColumnReader<VECTOR>

Fixed length bytes ColumnReader, just for Decimal.

字段概要

从类继承的字段 org.apache.paimon.format.parquet.reader.AbstractColumnReader

descriptor, dictionary, maxDefLevel, runLenDecoder

构造器概要

构造器

构造器和说明
FixedLenBytesColumnReader(org.apache.parquet.column.ColumnDescriptor descriptor, org.apache.parquet.column.page.PageReader pageReader, int precision)

方法概要

限定符和类型	方法和说明
protected void	readBatch(int rowId, int num, VECTOR column) Read batch from AbstractColumnReader.runLenDecoder and AbstractColumnReader.dataInputStream.
protected void	readBatchFromDictionaryIds(int rowId, int num, VECTOR column, org.apache.paimon.data.columnar.writable.WritableIntVector dictionaryIds) Decode dictionary ids to data.

从类继承的方法 org.apache.paimon.format.parquet.reader.AbstractColumnReader

afterReadPage, checkTypeName, readToVector, supportLazyDecode

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

FixedLenBytesColumnReader

public FixedLenBytesColumnReader(org.apache.parquet.column.ColumnDescriptor descriptor,
                                 org.apache.parquet.column.page.PageReader pageReader,
                                 int precision)
                          throws IOException

抛出:

IOException

方法详细资料

readBatch

protected void readBatch(int rowId,
                         int num,
                         VECTOR column)

从类复制的说明: AbstractColumnReader

Read batch from AbstractColumnReader.runLenDecoder and AbstractColumnReader.dataInputStream.

指定者:

readBatch 在类中 AbstractColumnReader<VECTOR extends org.apache.paimon.data.columnar.writable.WritableColumnVector>

readBatchFromDictionaryIds

protected void readBatchFromDictionaryIds(int rowId,
                                          int num,
                                          VECTOR column,
                                          org.apache.paimon.data.columnar.writable.WritableIntVector dictionaryIds)

从类复制的说明: AbstractColumnReader

Decode dictionary ids to data. From AbstractColumnReader.runLenDecoder and AbstractColumnReader.dictionaryIdsDecoder.

指定者:

readBatchFromDictionaryIds 在类中 AbstractColumnReader<VECTOR extends org.apache.paimon.data.columnar.writable.WritableColumnVector>