com.bigdata.btree

Interface HTreeIndexMetadata.Options

All Superinterfaces:

IndexMetadata.Options

Enclosing class:

HTreeIndexMetadata

public static interface HTreeIndexMetadata.Options
extends IndexMetadata.Options

HTree specific options.

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEFAULT_HTREE_ADDRESS_BITS
static String	DEFAULT_HTREE_KEY_LEN
static String	HTREE_ADDRESS_BITS The name of an optional property whose value specifies the number of address bits for an HTree (default "10").
static String	HTREE_CLASS_NAME The name of a class derived from HTree that will be used to re-load the index.
static String	HTREE_KEY_LEN The name of an optional property whose value specifies the fixed by length of the keys in the HTree -or- ZERO (0) if the key length is unconstrained, in which case variable length keys may be used (default "0").

Fields inherited from interface com.bigdata.btree.IndexMetadata.Options

BLOOM_FILTER, BTREE_BRANCHING_FACTOR, BTREE_CLASS_NAME, BTREE_RECORD_COMPRESSOR_FACTORY, DEFAULT_BLOOM_FILTER, DEFAULT_BTREE_BRANCHING_FACTOR, DEFAULT_BTREE_RECORD_COMPRESSOR_FACTORY, DEFAULT_INDEX_SEGMENT_BRANCHING_FACTOR, DEFAULT_INDEX_SEGMENT_BUFFER_NODES, DEFAULT_INDEX_SEGMENT_RECORD_COMPRESSOR_FACTORY, DEFAULT_MASTER_CHUNK_SIZE, DEFAULT_MASTER_CHUNK_TIMEOUT_NANOS, DEFAULT_MASTER_QUEUE_CAPACITY, DEFAULT_MAX_PARALLEL_EVICT_THREADS, DEFAULT_MAX_REC_LEN, DEFAULT_MIN_DIRTY_LIST_SIZE_FOR_PARALLEL_EVICT, DEFAULT_SCATTER_SPLIT_DATA_SERVICE_COUNT, DEFAULT_SCATTER_SPLIT_ENABLED, DEFAULT_SCATTER_SPLIT_INDEX_PARTITION_COUNT, DEFAULT_SCATTER_SPLIT_PERCENT_OF_SPLIT_THRESHOLD, DEFAULT_SINK_CHUNK_SIZE, DEFAULT_SINK_CHUNK_TIMEOUT_NANOS, DEFAULT_SINK_IDLE_TIMEOUT_NANOS, DEFAULT_SINK_POLL_TIMEOUT_NANOS, DEFAULT_SINK_QUEUE_CAPACITY, DEFAULT_WRITE_RETENTION_QUEUE_CAPACITY, DEFAULT_WRITE_RETENTION_QUEUE_SCAN, INDEX_SEGMENT_BRANCHING_FACTOR, INDEX_SEGMENT_BUFFER_NODES, INDEX_SEGMENT_RECORD_COMPRESSOR_FACTORY, INITIAL_DATA_SERVICE, KEY_BUILDER_FACTORY, LEAF_KEYS_CODER, LEAF_VALUES_CODER, MASTER_CHUNK_SIZE, MASTER_CHUNK_TIMEOUT_NANOS, MASTER_QUEUE_CAPACITY, MAX_BTREE_BRANCHING_FACTOR, MAX_INDEX_SEGMENT_BRANCHING_FACTOR, MAX_PARALLEL_EVICT_THREADS, MAX_REC_LEN, MAX_WRITE_RETENTION_QUEUE_CAPACITY, MIN_BRANCHING_FACTOR, MIN_DIRTY_LIST_SIZE_FOR_PARALLEL_EVICT, MIN_WRITE_RETENTION_QUEUE_CAPACITY, NODE_KEYS_CODER, SCATTER_SPLIT_DATA_SERVICE_COUNT, SCATTER_SPLIT_ENABLED, SCATTER_SPLIT_INDEX_PARTITION_COUNT, SCATTER_SPLIT_PERCENT_OF_SPLIT_THRESHOLD, SINK_CHUNK_SIZE, SINK_CHUNK_TIMEOUT_NANOS, SINK_IDLE_TIMEOUT_NANOS, SINK_POLL_TIMEOUT_NANOS, SINK_QUEUE_CAPACITY, WRITE_RETENTION_QUEUE_CAPACITY, WRITE_RETENTION_QUEUE_SCAN

Field Detail

HTREE_CLASS_NAME

static final String HTREE_CLASS_NAME

The name of a class derived from HTree that will be used to re-load the index.

HTREE_ADDRESS_BITS

static final String HTREE_ADDRESS_BITS

The name of an optional property whose value specifies the number of address bits for an HTree (default "10").

The #of children for a directory is 2^addressBits. For example, a value of 10 means a 10 bit address space in the directory. Such a directory would provide direct addressing for 1024 child references. Given an overhead of 8 bytes per child address, that would result in an expected page size of 8k before compression.

See Also:

DEFAULT_HTREE_ADDRESS_BITS

DEFAULT_HTREE_ADDRESS_BITS

static final String DEFAULT_HTREE_ADDRESS_BITS

See Also:

Constant Field Values

HTREE_KEY_LEN

static final String HTREE_KEY_LEN

The name of an optional property whose value specifies the fixed by length of the keys in the HTree -or- ZERO (0) if the key length is unconstrained, in which case variable length keys may be used (default "0"). This may be used in combination with an appropriate IRabaCoder to optimize to search and encoding of int32 or int64 keys.

See Also:

DEFAULT_HTREE_KEY_LEN

DEFAULT_HTREE_KEY_LEN

static final String DEFAULT_HTREE_KEY_LEN

See Also:

Constant Field Values