ArrowFieldWriter (Flink : Python 2.0-preview1 API)

java.lang.Object
- org.apache.flink.table.runtime.arrow.writers.ArrowFieldWriter<IN>

Type Parameters:

IN - Type of the row to write.

Direct Known Subclasses:

ArrayWriter, BigIntWriter, BinaryWriter, BooleanWriter, DateWriter, DecimalWriter, DoubleWriter, FloatWriter, IntWriter, MapWriter, NullWriter, RowWriter, SmallIntWriter, TimestampWriter, TimeWriter, TinyIntWriter, VarBinaryWriter, VarCharWriter
```
@Internal
public abstract class ArrowFieldWriter<IN>
extends Object
```
Base class for arrow field writer which is used to convert a field to an Arrow format.

Constructor Summary

Constructors
Constructor Description

ArrowFieldWriter(org.apache.arrow.vector.ValueVector valueVector)

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract void`	`doWrite(IN row, int ordinal)`	Sets the field value as the field at the specified ordinal of the specified row.
`void`	`finish()`	Finishes the writing of the current row batch.
`int`	`getCount()`	Returns the current count of elements written.
`org.apache.arrow.vector.ValueVector`	`getValueVector()`	Returns the underlying container which stores the sequence of values of a column.
`void`	`reset()`	Resets the state of the writer to write the next batch of fields.
`void`	`write(IN row, int ordinal)`	Writes the specified ordinal of the specified row.

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

- Constructor Detail
  - ArrowFieldWriter
```
public ArrowFieldWriter(org.apache.arrow.vector.ValueVector valueVector)
```
- Method Detail
  - getValueVector
```
public org.apache.arrow.vector.ValueVector getValueVector()
```
    Returns the underlying container which stores the sequence of values of a column.
  - getCount
```
public int getCount()
```
    Returns the current count of elements written.
  - doWrite
```
public abstract void doWrite(IN row,
                             int ordinal)
```
    Sets the field value as the field at the specified ordinal of the specified row.
  - write
```
public void write(IN row,
                  int ordinal)
```
    Writes the specified ordinal of the specified row.
  - finish
```
public void finish()
```
    Finishes the writing of the current row batch.
  - reset
```
public void reset()
```
    Resets the state of the writer to write the next batch of fields.