org.apache.druid.segment.vector

Class QueryableIndexVectorColumnSelectorFactory

java.lang.Object

org.apache.druid.segment.vector.QueryableIndexVectorColumnSelectorFactory

All Implemented Interfaces:

ColumnInspector, VectorColumnSelectorFactory

public class QueryableIndexVectorColumnSelectorFactory
extends Object
implements VectorColumnSelectorFactory

Constructor Summary

Constructors

Constructor and Description
QueryableIndexVectorColumnSelectorFactory(QueryableIndex index, ReadableVectorOffset offset, Closer closer, Map<String,BaseColumn> columnCache)

Method Summary

Modifier and Type	Method and Description
ColumnCapabilities	getColumnCapabilities(String columnName) Returns capabilities of a particular column, or null if the column doesn't exist.
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 columnName) 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 columnName) Returns a primitive column selector.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.druid.segment.vector.VectorColumnSelectorFactory

getMaxVectorSize

Constructor Detail

QueryableIndexVectorColumnSelectorFactory

public QueryableIndexVectorColumnSelectorFactory(QueryableIndex index,
                                                 ReadableVectorOffset offset,
                                                 Closer closer,
                                                 Map<String,BaseColumn> columnCache)

Method Detail

getVectorSizeInspector

public VectorSizeInspector getVectorSizeInspector()

Description copied from interface: VectorColumnSelectorFactory

Returns a VectorSizeInspector for the VectorCursor that generated this object.

Specified by:

getVectorSizeInspector in interface VectorColumnSelectorFactory

makeMultiValueDimensionSelector

public MultiValueDimensionVectorSelector makeMultiValueDimensionSelector(DimensionSpec dimensionSpec)

Description copied from interface: VectorColumnSelectorFactory

Returns a string-typed, multi-value-per-row column selector.

Specified by:

makeMultiValueDimensionSelector in interface VectorColumnSelectorFactory

makeSingleValueDimensionSelector

public SingleValueDimensionVectorSelector makeSingleValueDimensionSelector(DimensionSpec dimensionSpec)

Description copied from interface: VectorColumnSelectorFactory

Returns a string-typed, single-value-per-row column selector.

Specified by:

makeSingleValueDimensionSelector in interface VectorColumnSelectorFactory

makeValueSelector

public VectorValueSelector makeValueSelector(String columnName)

Description copied from interface: VectorColumnSelectorFactory

Returns a primitive column selector.

Specified by:

makeValueSelector in interface VectorColumnSelectorFactory

makeObjectSelector

public VectorObjectSelector makeObjectSelector(String columnName)

Description copied from interface: VectorColumnSelectorFactory

Returns an object selector, useful for complex columns.

Specified by:

makeObjectSelector in interface VectorColumnSelectorFactory

getColumnCapabilities

@Nullable
public ColumnCapabilities getColumnCapabilities(String columnName)

Description copied from interface: VectorColumnSelectorFactory

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

Specified by:

getColumnCapabilities in interface VectorColumnSelectorFactory

Parameters:

columnName - column name

Returns:

capabilities, or null if the column doesn't exist.