ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader (Paimon : Format 0.6.0-incubating API)

java.lang.Object
- org.apache.paimon.format.parquet.reader.ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

所有已实现的接口:

ParquetDataColumnReader

直接已知子类:

ParquetDataColumnReaderFactory.TypesFromInt96PageReader

封闭类:

ParquetDataColumnReaderFactory
```
public static class ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader
extends Object
implements ParquetDataColumnReader
```
The default data column reader for existing Parquet page reader which works for both dictionary or non dictionary types, Mirror from dictionary encoding path.

字段概要

字段
限定符和类型字段和说明

protected org.apache.parquet.column.Dictionary dict

protected org.apache.parquet.column.values.ValuesReader valuesReader

字段
限定符和类型	字段和说明
`protected org.apache.parquet.column.Dictionary`	`dict`
`protected org.apache.parquet.column.values.ValuesReader`	`valuesReader`

构造器概要

构造器
构造器和说明
`DefaultParquetDataColumnReader(org.apache.parquet.column.Dictionary dict)`
`DefaultParquetDataColumnReader(org.apache.parquet.column.values.ValuesReader valuesReader)`

方法概要

所有方法实例方法具体方法
限定符和类型	方法和说明
`org.apache.parquet.column.Dictionary`	`getDictionary()`
`void`	`initFromPage(int i, org.apache.parquet.bytes.ByteBufferInputStream in)` Initialize the reader by page data.
`boolean`	`readBoolean()`
`boolean`	`readBoolean(int id)`
`byte[]`	`readBytes()`
`byte[]`	`readBytes(int id)`
`double`	`readDouble()`
`double`	`readDouble(int id)`
`float`	`readFloat()`
`float`	`readFloat(int id)`
`int`	`readInteger()`
`int`	`readInteger(int id)`
`long`	`readLong()`
`long`	`readLong(int id)`
`org.apache.paimon.data.Timestamp`	`readMicrosTimestamp()`
`org.apache.paimon.data.Timestamp`	`readMillsTimestamp()`
`int`	`readSmallInt()`
`int`	`readSmallInt(int id)`
`org.apache.paimon.data.Timestamp`	`readTimestamp(int id)`
`int`	`readTinyInt()`
`int`	`readTinyInt(int id)`
`int`	`readValueDictionaryId()`
`void`	`skip()`

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 字段详细资料
  - valuesReader
```
protected final org.apache.parquet.column.values.ValuesReader valuesReader
```
  - dict
```
protected final org.apache.parquet.column.Dictionary dict
```
- 构造器详细资料
  - DefaultParquetDataColumnReader
```
public DefaultParquetDataColumnReader(org.apache.parquet.column.values.ValuesReader valuesReader)
```
  - DefaultParquetDataColumnReader
```
public DefaultParquetDataColumnReader(org.apache.parquet.column.Dictionary dict)
```
- 方法详细资料
  - initFromPage
```
public void initFromPage(int i,
                         org.apache.parquet.bytes.ByteBufferInputStream in)
                  throws IOException
```
    从接口复制的说明: ParquetDataColumnReader
    
    Initialize the reader by page data.
    
    指定者:
    
    initFromPage 在接口中 ParquetDataColumnReader
    
    参数:
    
    i - value count
    
    in - page data
    
    抛出:
    
    IOException - the io exception
  - readBoolean
```
public boolean readBoolean()
```
    指定者:
    
    readBoolean 在接口中 ParquetDataColumnReader
    
    返回:
    
    the next Boolean from the page
  - readBoolean
```
public boolean readBoolean(int id)
```
    指定者:
    
    readBoolean 在接口中 ParquetDataColumnReader
    
    参数:
    
    id - in dictionary
    
    返回:
    
    the Boolean from the dictionary by id
  - readBytes
```
public byte[] readBytes()
```
    指定者:
    
    readBytes 在接口中 ParquetDataColumnReader
    
    返回:
    
    the next Bytes from the page
  - readBytes
```
public byte[] readBytes(int id)
```
    指定者:
    
    readBytes 在接口中 ParquetDataColumnReader
    
    参数:
    
    id - in dictionary
    
    返回:
    
    the Bytes from the dictionary by id
  - readFloat
```
public float readFloat()
```
    指定者:
    
    readFloat 在接口中 ParquetDataColumnReader
    
    返回:
    
    the next Float from the page
  - readFloat
```
public float readFloat(int id)
```
    指定者:
    
    readFloat 在接口中 ParquetDataColumnReader
    
    参数:
    
    id - in dictionary
    
    返回:
    
    the Float from the dictionary by id
  - readDouble
```
public double readDouble()
```
    指定者:
    
    readDouble 在接口中 ParquetDataColumnReader
    
    返回:
    
    the next Double from the page
  - readDouble
```
public double readDouble(int id)
```
    指定者:
    
    readDouble 在接口中 ParquetDataColumnReader
    
    参数:
    
    id - in dictionary
    
    返回:
    
    the Double from the dictionary by id
  - readMillsTimestamp
```
public org.apache.paimon.data.Timestamp readMillsTimestamp()
```
    指定者:
    
    readMillsTimestamp 在接口中 ParquetDataColumnReader
    
    返回:
    
    the next Timestamp with millisecond precision.
  - readMicrosTimestamp
```
public org.apache.paimon.data.Timestamp readMicrosTimestamp()
```
    指定者:
    
    readMicrosTimestamp 在接口中 ParquetDataColumnReader
    
    返回:
    
    the next Timestamp with microsecond precision.
  - readTimestamp
```
public org.apache.paimon.data.Timestamp readTimestamp(int id)
```
    指定者:
    
    readTimestamp 在接口中 ParquetDataColumnReader
    
    参数:
    
    id - in dictionary
    
    返回:
    
    the TimestampData from the dictionary by id
  - readInteger
```
public int readInteger()
```
    指定者:
    
    readInteger 在接口中 ParquetDataColumnReader
    
    返回:
    
    the next Integer from the page
  - readInteger
```
public int readInteger(int id)
```
    指定者:
    
    readInteger 在接口中 ParquetDataColumnReader
    
    参数:
    
    id - in dictionary
    
    返回:
    
    the Integer from the dictionary by id
  - readLong
```
public long readLong(int id)
```
    指定者:
    
    readLong 在接口中 ParquetDataColumnReader
    
    参数:
    
    id - in dictionary
    
    返回:
    
    the Long from the dictionary by id
  - readLong
```
public long readLong()
```
    指定者:
    
    readLong 在接口中 ParquetDataColumnReader
    
    返回:
    
    the next Long from the page
  - readSmallInt
```
public int readSmallInt()
```
    指定者:
    
    readSmallInt 在接口中 ParquetDataColumnReader
    
    返回:
    
    the next SmallInt from the page
  - readSmallInt
```
public int readSmallInt(int id)
```
    指定者:
    
    readSmallInt 在接口中 ParquetDataColumnReader
    
    参数:
    
    id - in dictionary
    
    返回:
    
    the Small Int from the dictionary by id
  - readTinyInt
```
public int readTinyInt()
```
    指定者:
    
    readTinyInt 在接口中 ParquetDataColumnReader
    
    返回:
    
    the next TinyInt from the page
  - readTinyInt
```
public int readTinyInt(int id)
```
    指定者:
    
    readTinyInt 在接口中 ParquetDataColumnReader
    
    参数:
    
    id - in dictionary
    
    返回:
    
    the tiny int from the dictionary by id
  - readValueDictionaryId
```
public int readValueDictionaryId()
```
    指定者:
    
    readValueDictionaryId 在接口中 ParquetDataColumnReader
    
    返回:
    
    the next Dictionary ID from the page
  - skip
```
public void skip()
```
  - getDictionary
```
public org.apache.parquet.column.Dictionary getDictionary()
```
    指定者:
    
    getDictionary 在接口中 ParquetDataColumnReader
    
    返回:
    
    the underlying dictionary if current reader is dictionary encoded

类 ParquetDataColumnReaderFactory.DefaultParquetDataColumnReader

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

valuesReader

dict

构造器详细资料

DefaultParquetDataColumnReader

DefaultParquetDataColumnReader

方法详细资料

initFromPage

readBoolean

readBoolean

readBytes

readBytes

readFloat

readFloat

readDouble

readDouble

readMillsTimestamp

readMicrosTimestamp

readTimestamp

readInteger

readInteger

readLong

readLong

readSmallInt

readSmallInt

readTinyInt

readTinyInt

readValueDictionaryId

skip

getDictionary