java.lang.Object
- org.apache.parquet.column.values.ValuesWriter
- - org.apache.parquet.column.values.fallback.FallbackValuesWriter<I,F>

public class FallbackValuesWriter<I extends ValuesWriter & RequiresFallback,F extends ValuesWriter>
extends ValuesWriter

Field Summary

Fields
Modifier and Type Field Description

F fallBackWriter
fallback

I initialWriter
writer to start with

Constructor Summary

Constructors
Constructor Description

FallbackValuesWriter(I initialWriter, F fallBackWriter)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`close()`	Called to close the values writer.
`long`	`getAllocatedSize()`	( > `ValuesWriter.getBufferedSize()` )
`long`	`getBufferedSize()`	used to decide if we want to work to the next page
`org.apache.parquet.bytes.BytesInput`	`getBytes()`
`Encoding`	`getEncoding()`	called after getBytes() and before reset()
`String`	`memUsageString(String prefix)`
`static <I extends ValuesWriter & RequiresFallback,F extends ValuesWriter> FallbackValuesWriter<I,F>`	`of(I initialWriter, F fallBackWriter)`
`void`	`reset()`	called after getBytes() to reset the current buffer and start writing the next page
`void`	`resetDictionary()`	reset the dictionary when a new block starts
`DictionaryPage`	`toDictPageAndClose()`	Returns the dictionary generated by this writer if one was created.
`void`	`writeByte(int value)`
`void`	`writeBytes(Binary v)`
`void`	`writeDouble(double v)`
`void`	`writeFloat(float v)`
`void`	`writeInteger(int v)`
`void`	`writeLong(long v)`

Methods inherited from class org.apache.parquet.column.values.ValuesWriter
writeBoolean

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - initialWriter
```
public final I extends ValuesWriter & RequiresFallback initialWriter
```
    writer to start with
  - fallBackWriter
```
public final F extends ValuesWriter fallBackWriter
```
    fallback
- Constructor Detail
  - FallbackValuesWriter
```
public FallbackValuesWriter(I initialWriter,
                            F fallBackWriter)
```
- Method Detail
  - of
```
public static <I extends ValuesWriter & RequiresFallback,F extends ValuesWriter> FallbackValuesWriter<I,F> of(I initialWriter,
                                                                                                                          F fallBackWriter)
```
  - getBufferedSize
```
public long getBufferedSize()
```
    Description copied from class: ValuesWriter
    
    used to decide if we want to work to the next page
    
    Specified by:
    
    getBufferedSize in class ValuesWriter
    
    Returns:
    
    the size of the currently buffered data (in bytes)
  - getBytes
```
public org.apache.parquet.bytes.BytesInput getBytes()
```
    Specified by:
    
    getBytes in class ValuesWriter
    
    Returns:
    
    the bytes buffered so far to write to the current page
  - getEncoding
```
public Encoding getEncoding()
```
    Description copied from class: ValuesWriter
    
    called after getBytes() and before reset()
    
    Specified by:
    
    getEncoding in class ValuesWriter
    
    Returns:
    
    the encoding that was used to encode the bytes
  - reset
```
public void reset()
```
    Description copied from class: ValuesWriter
    
    called after getBytes() to reset the current buffer and start writing the next page
    
    Specified by:
    
    reset in class ValuesWriter
  - close
```
public void close()
```
    Description copied from class: ValuesWriter
    
    Called to close the values writer. Any output stream is closed and can no longer be used. All resources are released.
    
    Overrides:
    
    close in class ValuesWriter
  - toDictPageAndClose
```
public DictionaryPage toDictPageAndClose()
```
    Description copied from class: ValuesWriter
    
    Returns the dictionary generated by this writer if one was created. As part of this operation the dictionary is closed and will not have any new values written into it.
    
    Overrides:
    
    toDictPageAndClose in class ValuesWriter
    
    Returns:
    
    the dictionary page or null if not dictionary based
  - resetDictionary
```
public void resetDictionary()
```
    Description copied from class: ValuesWriter
    
    reset the dictionary when a new block starts
    
    Overrides:
    
    resetDictionary in class ValuesWriter
  - getAllocatedSize
```
public long getAllocatedSize()
```
    Description copied from class: ValuesWriter
    
    ( > ValuesWriter.getBufferedSize() )
    
    Specified by:
    
    getAllocatedSize in class ValuesWriter
    
    Returns:
    
    the allocated size of the buffer
  - memUsageString
```
public String memUsageString(String prefix)
```
    Specified by:
    
    memUsageString in class ValuesWriter
  - writeByte
```
public void writeByte(int value)
```
    Overrides:
    
    writeByte in class ValuesWriter
    
    Parameters:
    
    value - the value to encode
  - writeBytes
```
public void writeBytes(Binary v)
```
    Overrides:
    
    writeBytes in class ValuesWriter
    
    Parameters:
    
    v - the value to encode
  - writeInteger
```
public void writeInteger(int v)
```
    Overrides:
    
    writeInteger in class ValuesWriter
    
    Parameters:
    
    v - the value to encode
  - writeLong
```
public void writeLong(long v)
```
    Overrides:
    
    writeLong in class ValuesWriter
    
    Parameters:
    
    v - the value to encode
  - writeFloat
```
public void writeFloat(float v)
```
    Overrides:
    
    writeFloat in class ValuesWriter
    
    Parameters:
    
    v - the value to encode
  - writeDouble
```
public void writeDouble(double v)
```
    Overrides:
    
    writeDouble in class ValuesWriter
    
    Parameters:
    
    v - the value to encode

Modifier and Type	Field	Description
`F`	`fallBackWriter`	fallback
`I`	`initialWriter`	writer to start with

Class FallbackValuesWriter<I extends ValuesWriter & RequiresFallback,​F extends ValuesWriter>

Field Summary

Constructor Summary

Method Summary

Methods inherited from class org.apache.parquet.column.values.ValuesWriter

Methods inherited from class java.lang.Object

Field Detail

initialWriter

fallBackWriter

Constructor Detail

FallbackValuesWriter

Method Detail

of

getBufferedSize

getBytes

getEncoding

reset

close

toDictPageAndClose

resetDictionary

getAllocatedSize

memUsageString

writeByte

writeBytes

writeInteger

writeLong

writeFloat

writeDouble

Class FallbackValuesWriter<I extends ValuesWriter & RequiresFallback,F extends ValuesWriter>