VectorColumnSelectorFactory (druid-processing 0.19.0 API)

All Superinterfaces:

ColumnInspector

All Known Implementing Classes:

QueryableIndexVectorColumnSelectorFactory
```
public interface VectorColumnSelectorFactory
extends ColumnInspector
```
See Also:

org.apache.druid.segment.ColumnSelectorFactory, the non-vectorized version.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`ColumnCapabilities`	`getColumnCapabilities(String column)` Returns capabilities of a particular column, or null if the column doesn't exist.
`default int`	`getMaxVectorSize()` Returns the maximum vector size for the `VectorCursor` that generated this object.
`VectorSizeInspector`	`getVectorSizeInspector()` Returns a `VectorSizeInspector` for the `VectorCursor` that generated this object.
`MultiValueDimensionVectorSelector`	`makeMultiValueDimensionSelector(DimensionSpec dimensionSpec)` Returns a string-typed, multi-value-per-row column selector.
`VectorObjectSelector`	`makeObjectSelector(String column)` Returns an object selector, useful for complex columns.
`SingleValueDimensionVectorSelector`	`makeSingleValueDimensionSelector(DimensionSpec dimensionSpec)` Returns a string-typed, single-value-per-row column selector.
`VectorValueSelector`	`makeValueSelector(String column)` Returns a primitive column selector.

- Method Detail
  - getVectorSizeInspector
```
VectorSizeInspector getVectorSizeInspector()
```
    Returns a VectorSizeInspector for the VectorCursor that generated this object.
  - getMaxVectorSize
```
default int getMaxVectorSize()
```
    Returns the maximum vector size for the VectorCursor that generated this object.
    
    See Also:
    
    VectorSizeInspector.getMaxVectorSize()
  - makeSingleValueDimensionSelector
```
SingleValueDimensionVectorSelector makeSingleValueDimensionSelector(DimensionSpec dimensionSpec)
```
    Returns a string-typed, single-value-per-row column selector.
  - makeMultiValueDimensionSelector
```
MultiValueDimensionVectorSelector makeMultiValueDimensionSelector(DimensionSpec dimensionSpec)
```
    Returns a string-typed, multi-value-per-row column selector.
  - makeValueSelector
```
VectorValueSelector makeValueSelector(String column)
```
    Returns a primitive column selector.
  - makeObjectSelector
```
VectorObjectSelector makeObjectSelector(String column)
```
    Returns an object selector, useful for complex columns.
  - getColumnCapabilities
```
@Nullable
ColumnCapabilities getColumnCapabilities(String column)
```
    Returns capabilities of a particular column, or null if the column doesn't exist. Unlike ColumnSelectorFactory, null does not potentially indicate a dynamically discovered column.
    
    Specified by:
    
    getColumnCapabilities in interface ColumnInspector
    
    Parameters:
    
    column - column name
    
    Returns:
    
    capabilities, or null if the column doesn't exist.

Interface VectorColumnSelectorFactory

Method Summary

Method Detail

getVectorSizeInspector

getMaxVectorSize

makeSingleValueDimensionSelector

makeMultiValueDimensionSelector

makeValueSelector

makeObjectSelector

getColumnCapabilities