org.apache.druid.segment

Interface ColumnInspector

All Known Subinterfaces:

ColumnSelectorFactory, StorageAdapter, VectorColumnSelectorFactory

All Known Implementing Classes:

AllNullColumnSelectorFactory, HashJoinSegmentStorageAdapter, IncrementalIndexStorageAdapter, IndexedTableColumnSelectorFactory, LookupColumnSelectorFactory, QueryableIndexStorageAdapter, QueryableIndexVectorColumnSelectorFactory, RowBasedColumnSelectorFactory, RowBasedStorageAdapter, VirtualizedColumnSelectorFactory

public interface ColumnInspector

Method Summary

Modifier and Type	Method and Description
ColumnCapabilities	getColumnCapabilities(String column) Returns capabilities of a particular column.

Method Detail

getColumnCapabilities

@Nullable
ColumnCapabilities getColumnCapabilities(String column)

Returns capabilities of a particular column.

Parameters:

column - column name

Returns:

capabilities, or null