org.apache.cassandra.cql3.restrictions

Interface Restriction

All Known Subinterfaces:

Restrictions, SingleRestriction

All Known Implementing Classes:

MultiColumnRestriction, MultiColumnRestriction.EQRestriction, MultiColumnRestriction.INRestriction, MultiColumnRestriction.InRestrictionWithMarker, MultiColumnRestriction.InRestrictionWithValues, MultiColumnRestriction.NotNullRestriction, MultiColumnRestriction.SliceRestriction, SingleColumnRestriction, SingleColumnRestriction.ContainsRestriction, SingleColumnRestriction.EQRestriction, SingleColumnRestriction.INRestriction, SingleColumnRestriction.InRestrictionWithMarker, SingleColumnRestriction.InRestrictionWithValues, SingleColumnRestriction.IsNotNullRestriction, SingleColumnRestriction.LikeRestriction, SingleColumnRestriction.SliceRestriction

public interface Restriction

Implementation of this class must be immutable.

Method Summary

Modifier and Type	Method and Description
void	addFunctionsTo(java.util.List<Function> functions) Adds all functions (native and user-defined) used by any component of the restriction to the specified list.
void	addRowFilterTo(RowFilter filter, IndexRegistry indexRegistry, QueryOptions options) Adds to the specified row filter the expressions corresponding to this Restriction.
java.util.List<ColumnMetadata>	getColumnDefs() Returns the column definitions in position order.
ColumnMetadata	getFirstColumn() Returns the definition of the first column.
ColumnMetadata	getLastColumn() Returns the definition of the last column.
boolean	hasSupportingIndex(IndexRegistry indexRegistry) Check if the restriction is on indexed columns.
default boolean	isOnToken()

Method Detail

isOnToken

default boolean isOnToken()

getFirstColumn

ColumnMetadata getFirstColumn()

Returns the definition of the first column.

Returns:

the definition of the first column.

getLastColumn

ColumnMetadata getLastColumn()

Returns the definition of the last column.

Returns:

the definition of the last column.

getColumnDefs

java.util.List<ColumnMetadata> getColumnDefs()

Returns the column definitions in position order.

Returns:

the column definitions in position order.

addFunctionsTo

void addFunctionsTo(java.util.List<Function> functions)

Adds all functions (native and user-defined) used by any component of the restriction to the specified list.

Parameters:

functions - the list to add to

hasSupportingIndex

boolean hasSupportingIndex(IndexRegistry indexRegistry)

Check if the restriction is on indexed columns.

Parameters:

indexRegistry - the index registry

Returns:

true if the restriction is on indexed columns, false

addRowFilterTo

void addRowFilterTo(RowFilter filter,
                    IndexRegistry indexRegistry,
                    QueryOptions options)

Adds to the specified row filter the expressions corresponding to this Restriction.

Parameters:

filter - the row filter to add expressions to

indexRegistry - the index registry

options - the query options