ValueWriter (Drill : 1.20.3 API)

All Known Subinterfaces:

OffsetVectorWriter, ScalarWriter

All Known Implementing Classes:

AbstractConvertFromString, AbstractFixedWidthWriter, AbstractFixedWidthWriter.BaseFixedWidthWriter, AbstractFixedWidthWriter.BaseIntWriter, AbstractScalarWriter, AbstractScalarWriterImpl, BaseScalarWriter, BaseVarWidthWriter, BitColumnWriter, ColumnAccessors.BigIntColumnWriter, ColumnAccessors.DateColumnWriter, ColumnAccessors.Decimal18ColumnWriter, ColumnAccessors.Decimal28SparseColumnWriter, ColumnAccessors.Decimal38SparseColumnWriter, ColumnAccessors.Decimal9ColumnWriter, ColumnAccessors.Float4ColumnWriter, ColumnAccessors.Float8ColumnWriter, ColumnAccessors.IntColumnWriter, ColumnAccessors.IntervalColumnWriter, ColumnAccessors.IntervalDayColumnWriter, ColumnAccessors.IntervalYearColumnWriter, ColumnAccessors.SmallIntColumnWriter, ColumnAccessors.TimeColumnWriter, ColumnAccessors.TimeStampColumnWriter, ColumnAccessors.TinyIntColumnWriter, ColumnAccessors.UInt1ColumnWriter, ColumnAccessors.UInt2ColumnWriter, ColumnAccessors.UInt4ColumnWriter, ColumnAccessors.UInt8ColumnWriter, ColumnAccessors.Var16CharColumnWriter, ColumnAccessors.VarBinaryColumnWriter, ColumnAccessors.VarCharColumnWriter, ColumnAccessors.VarDecimalColumnWriter, ConvertBooleanToString, ConvertDateToString, ConvertDecimalToString, ConvertDoubleToDecimal, ConvertDoubleToString, ConvertFloatToDecimal, ConvertIntervalToString, ConvertIntToDecimal, ConvertIntToString, ConvertLongToDecimal, ConvertLongToString, ConvertStringToBoolean, ConvertStringToDate, ConvertStringToDecimal, ConvertStringToDouble, ConvertStringToInt, ConvertStringToInterval, ConvertStringToLong, ConvertStringToTime, ConvertStringToTimeStamp, ConvertTimeStampToString, ConvertTimeToString, DirectConverter, DummyArrayWriter.DummyOffsetVectorWriter, DummyScalarWriter, NullableScalarWriter, OffsetVectorWriterImpl
```
public interface ValueWriter
```
Writer for a scalar value. Column writers implement this interface to map values directly to the underlying vector types, throwing an exception for type mis-matches. Format-specific column converters can implement this interface to perform type conversion. Since both format-specific and generic writers share the same interface they can be used interchangeably, avoiding an extra call level when no conversion is needed.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`appendBytes(byte[] value, int len)`
`void`	`setBoolean(boolean value)`
`void`	`setBytes(byte[] value, int len)`
`void`	`setDate(LocalDate value)`
`void`	`setDecimal(BigDecimal value)`
`void`	`setDouble(double value)`
`void`	`setFloat(float value)`
`void`	`setInt(int value)`
`void`	`setLong(long value)`
`void`	`setNull()` Set the current value to null.
`void`	`setPeriod(org.joda.time.Period value)`
`void`	`setString(String value)`
`void`	`setTime(LocalTime value)`
`void`	`setTimestamp(Instant value)`
`void`	`setValue(Object value)` Write value to a vector as a Java object of the "native" type for the column.

- Method Detail
  - setNull
```
void setNull()
```
    Set the current value to null. throws IllegalStateException if called on a non-nullable value.
  - setBoolean
```
void setBoolean(boolean value)
```
  - setInt
```
void setInt(int value)
```
  - setLong
```
void setLong(long value)
```
  - setFloat
```
void setFloat(float value)
```
  - setDouble
```
void setDouble(double value)
```
  - setString
```
void setString(String value)
```
  - appendBytes
```
void appendBytes(byte[] value,
                 int len)
```
  - setBytes
```
void setBytes(byte[] value,
              int len)
```
  - setDecimal
```
void setDecimal(BigDecimal value)
```
  - setPeriod
```
void setPeriod(org.joda.time.Period value)
```
  - setDate
```
void setDate(LocalDate value)
```
  - setTime
```
void setTime(LocalTime value)
```
  - setTimestamp
```
void setTimestamp(Instant value)
```
  - setValue
```
void setValue(Object value)
```
    Write value to a vector as a Java object of the "native" type for the column. This form is available only on scalar writers. The object must be of the form for the primary write method above.
    Primarily to be used when the code already knows the object type.
    
    Parameters:
    
    value - a value that matches the primary setter above, or null to set the column to null
    
    See Also:
    
    for the generic case

Interface ValueWriter

Method Summary

Method Detail

setNull

setBoolean

setInt

setLong

setFloat

setDouble

setString

appendBytes

setBytes

setDecimal

setPeriod

setDate

setTime

setTimestamp

setValue