org.apache.cassandra.index.internal

Interface CassandraIndexFunctions

public interface CassandraIndexFunctions

Field Summary

Fields

Modifier and Type	Field and Description
static CassandraIndexFunctions	CLUSTERING_COLUMN_INDEX_FUNCTIONS
static CassandraIndexFunctions	COLLECTION_ENTRY_INDEX_FUNCTIONS
static CassandraIndexFunctions	COLLECTION_KEY_INDEX_FUNCTIONS
static CassandraIndexFunctions	COLLECTION_VALUE_INDEX_FUNCTIONS
static CassandraIndexFunctions	KEYS_INDEX_FUNCTIONS
static CassandraIndexFunctions	PARTITION_KEY_INDEX_FUNCTIONS
static CassandraIndexFunctions	REGULAR_COLUMN_INDEX_FUNCTIONS

Method Summary

Modifier and Type	Method and Description
default CFMetaData.Builder	addIndexClusteringColumns(CFMetaData.Builder builder, CFMetaData baseMetadata, ColumnDefinition cfDef) Add the clustering columns for a specific type of index table to the a CFMetaData.Builder (which is being used to construct the index table's CFMetadata.
default AbstractType<?>	getIndexedValueType(ColumnDefinition indexedColumn) Returns the type of the the values in the index.
CassandraIndex	newIndexInstance(ColumnFamilyStore baseCfs, IndexMetadata indexMetadata)

Field Detail

KEYS_INDEX_FUNCTIONS

static final CassandraIndexFunctions KEYS_INDEX_FUNCTIONS

REGULAR_COLUMN_INDEX_FUNCTIONS

static final CassandraIndexFunctions REGULAR_COLUMN_INDEX_FUNCTIONS

CLUSTERING_COLUMN_INDEX_FUNCTIONS

static final CassandraIndexFunctions CLUSTERING_COLUMN_INDEX_FUNCTIONS

PARTITION_KEY_INDEX_FUNCTIONS

static final CassandraIndexFunctions PARTITION_KEY_INDEX_FUNCTIONS

COLLECTION_KEY_INDEX_FUNCTIONS

static final CassandraIndexFunctions COLLECTION_KEY_INDEX_FUNCTIONS

COLLECTION_VALUE_INDEX_FUNCTIONS

static final CassandraIndexFunctions COLLECTION_VALUE_INDEX_FUNCTIONS

COLLECTION_ENTRY_INDEX_FUNCTIONS

static final CassandraIndexFunctions COLLECTION_ENTRY_INDEX_FUNCTIONS

Method Detail

newIndexInstance

CassandraIndex newIndexInstance(ColumnFamilyStore baseCfs,
                                IndexMetadata indexMetadata)

Parameters:

baseCfs -

indexMetadata -

Returns:

getIndexedValueType

default AbstractType<?> getIndexedValueType(ColumnDefinition indexedColumn)

Returns the type of the the values in the index. For most columns this is simply its type, but for collections it depends on whether the index is on the collection name/value element or on a frozen collection

Parameters:

indexedColumn -

Returns:

addIndexClusteringColumns

default CFMetaData.Builder addIndexClusteringColumns(CFMetaData.Builder builder,
                                                     CFMetaData baseMetadata,
                                                     ColumnDefinition cfDef)

Add the clustering columns for a specific type of index table to the a CFMetaData.Builder (which is being used to construct the index table's CFMetadata. In the default implementation, the clustering columns of the index table hold the partition key & clustering columns of the base table. This is overridden in several cases: * When the indexed value is itself a clustering column, in which case, we only need store the base table's *other* clustering values in the index - the indexed value being the index table's partition key * When the indexed value is a collection value, in which case we also need to capture the cell path from the base table * In a KEYS index (for thrift/compact storage/static column indexes), where only the base partition key is held in the index table. Called from indexCfsMetadata

Parameters:

builder -

baseMetadata -

cfDef -

Returns: