Uses of Class
org.apache.druid.segment.column.ColumnCapabilities.Capable

Packages that use ColumnCapabilities.Capable

Package	Description
org.apache.druid.query.filter
org.apache.druid.segment
org.apache.druid.segment.column
org.apache.druid.segment.virtual

Uses of ColumnCapabilities.Capable in org.apache.druid.query.filter

Methods in org.apache.druid.query.filter that return ColumnCapabilities.Capable

Modifier and Type	Method and Description
ColumnCapabilities.Capable	BitmapIndexSelector.hasMultipleValues(String dimension)

Uses of ColumnCapabilities.Capable in org.apache.druid.segment

Methods in org.apache.druid.segment that return ColumnCapabilities.Capable

Modifier and Type	Method and Description
ColumnCapabilities.Capable	ColumnSelectorBitmapIndexSelector.hasMultipleValues(String dimension)

Uses of ColumnCapabilities.Capable in org.apache.druid.segment.column

Methods in org.apache.druid.segment.column that return ColumnCapabilities.Capable

Modifier and Type	Method and Description
ColumnCapabilities.Capable	ColumnCapabilities.Capable.and(ColumnCapabilities.Capable other)
ColumnCapabilities.Capable	ColumnCapabilitiesImpl.areDictionaryValuesSorted()
ColumnCapabilities.Capable	ColumnCapabilities.areDictionaryValuesSorted() If the column is dictionary encoded, are those values sorted? Useful to know for optimizations that can defer looking up values and allowing sorting with the dictionary ids directly
ColumnCapabilities.Capable	ColumnCapabilitiesImpl.areDictionaryValuesUnique()
ColumnCapabilities.Capable	ColumnCapabilities.areDictionaryValuesUnique() If the column is dictionary encoded, is there a 1:1 mapping of dictionary ids to values? If this is true, it unlocks optimizations such as allowing for things like grouping directly on dictionary ids and deferred value lookup
ColumnCapabilities.Capable	ColumnCapabilities.Capable.coerceUnknownToBoolean(boolean unknownIsTrue)
ColumnCapabilities.Capable	ColumnCapabilitiesImpl.hasMultipleValues()
ColumnCapabilities.Capable	ColumnCapabilities.hasMultipleValues() String columns are sneaky, and might have multiple values, this is to allow callers to know and appropriately prepare themselves
ColumnCapabilities.Capable	ColumnCapabilitiesImpl.hasNulls()
ColumnCapabilities.Capable	ColumnCapabilities.hasNulls() Does this column contain null values? If so, callers, especially for primitive numeric columns, will need to check for null value rows and act accordingly
ColumnCapabilities.Capable	ColumnCapabilitiesImpl.isDictionaryEncoded()
ColumnCapabilities.Capable	ColumnCapabilities.isDictionaryEncoded() Is the column dictionary encoded? If so, a DimensionDictionarySelector may be used instead of using a value selector, allowing algorithms to operate on primitive integer dictionary ids rather than the looked up dictionary values
static ColumnCapabilities.Capable	ColumnCapabilities.Capable.of(boolean bool)
static ColumnCapabilities.Capable	ColumnCapabilities.Capable.ofNullable(Boolean bool)
ColumnCapabilities.Capable	ColumnCapabilities.Capable.or(ColumnCapabilities.Capable other)
static ColumnCapabilities.Capable	ColumnCapabilities.Capable.valueOf(String name) Returns the enum constant of this type with the specified name.
static ColumnCapabilities.Capable[]	ColumnCapabilities.Capable.values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods in org.apache.druid.segment.column with parameters of type ColumnCapabilities.Capable

Modifier and Type	Method and Description
ColumnCapabilities.Capable	ColumnCapabilities.Capable.and(ColumnCapabilities.Capable other)
ColumnCapabilities.Capable	ColumnCapabilities.Capable.or(ColumnCapabilities.Capable other)
ColumnCapabilitiesImpl	ColumnCapabilitiesImpl.setHasNulls(ColumnCapabilities.Capable hasNulls)
ColumnBuilder	ColumnBuilder.setHasNulls(ColumnCapabilities.Capable nullable)

Uses of ColumnCapabilities.Capable in org.apache.druid.segment.virtual

Methods in org.apache.druid.segment.virtual with parameters of type ColumnCapabilities.Capable

Modifier and Type	Method and Description
static boolean	ExpressionSelectors.canMapOverDictionary(Expr.BindingAnalysis bindingAnalysis, ColumnCapabilities.Capable hasMultipleValues) Returns whether an expression can be applied to unique values of a particular column (like those in a dictionary) rather than being applied to each row individually.