com.bigdata.rdf.sail
Interface BigdataSail.Options

All Superinterfaces:

AbstractResource.Options, AbstractTripleStore.Options, DataLoader.Options, FullTextIndex.Options, InferenceEngine.Options, KeyBuilder.Options, Options

Enclosing class:

BigdataSail

public static interface BigdataSail.Options
extends AbstractTripleStore.Options

Additional parameters understood by the Sesame 2.x SAIL implementation.

Version:

$Id: BigdataSail.java 2265 2009-10-26 12:51:06Z thompsonbry $

Author:

Bryan Thompson

Field Summary

static String	BUFFER_CAPACITY The capacity of the statement buffer used to absorb writes.
static String	DEFAULT_BUFFER_CAPACITY
static String	DEFAULT_NATIVE_JOINS
static String	DEFAULT_QUERY_TIME_EXPANDER
static String	DEFAULT_TRUTH_MAINTENANCE
static String	NATIVE_JOINS This boolean may be used to specify whether or not to use "native" joins, bypassing the Sesame join mechanism (default "true").
static String	QUERY_TIME_EXPANDER Option (default true) may be used to explicitly disable query-time expansion for entailments NOT computed during closure.
static String	TRUTH_MAINTENANCE This optional boolean property may be used to specify whether or not RDFS entailments are maintained by eager closure of the knowledge base (the default is true).

Fields inherited from interface com.bigdata.rdf.store.AbstractTripleStore.Options

AXIOMS_CLASS, BLOOM_FILTER, CLOSURE_CLASS, DEFAULT_AXIOMS_CLASS, DEFAULT_BLOOM_FILTER, DEFAULT_CLOSURE_CLASS, DEFAULT_JUSTIFY, DEFAULT_LEXICON, DEFAULT_ONE_ACCESS_PATH, DEFAULT_QUADS, DEFAULT_STATEMENT_IDENTIFIERS, DEFAULT_STORE_BLANK_NODES, DEFAULT_TERMID_BITS_TO_REVERSE, DEFAULT_TEXT_INDEX, DEFAULT_TEXT_INDEX_DATATYPE_LITERALS, DEFAULT_VOCABULARY_CLASS, JUSTIFY, LEXICON, ONE_ACCESS_PATH, QUADS, STATEMENT_IDENTIFIERS, STORE_BLANK_NODES, TERMID_BITS_TO_REVERSE, TEXT_INDEX, TEXT_INDEX_DATATYPE_LITERALS, VOCABULARY_CLASS

Fields inherited from interface com.bigdata.relation.AbstractResource.Options

CHUNK_CAPACITY, CHUNK_OF_CHUNKS_CAPACITY, CHUNK_TIMEOUT, DEFAULT_CHUNK_CAPACITY, DEFAULT_CHUNK_OF_CHUNKS_CAPACITY, DEFAULT_CHUNK_TIMEOUT, DEFAULT_FORCE_SERIAL_EXECUTION, DEFAULT_FULLY_BUFFERED_READ_THRESHOLD, DEFAULT_MAX_PARALLEL_SUBQUERIES, FORCE_SERIAL_EXECUTION, FULLY_BUFFERED_READ_THRESHOLD, MAX_PARALLEL_SUBQUERIES, NESTED_SUBQUERY

Fields inherited from interface com.bigdata.rdf.rules.InferenceEngine.Options

DEFAULT_FORWARD_CHAIN_OWL_EQUIVALENT_CLASS, DEFAULT_FORWARD_CHAIN_OWL_EQUIVALENT_PROPERTY, DEFAULT_FORWARD_CHAIN_OWL_HAS_VALUE, DEFAULT_FORWARD_CHAIN_OWL_INVERSE_OF, DEFAULT_FORWARD_CHAIN_OWL_SAMEAS_CLOSURE, DEFAULT_FORWARD_CHAIN_OWL_SAMEAS_PROPERTIES, DEFAULT_FORWARD_CHAIN_OWL_TRANSITIVE_PROPERTY, DEFAULT_FORWARD_RDF_TYPE_RDFS_RESOURCE, FORWARD_CHAIN_OWL_EQUIVALENT_CLASS, FORWARD_CHAIN_OWL_EQUIVALENT_PROPERTY, FORWARD_CHAIN_OWL_HAS_VALUE, FORWARD_CHAIN_OWL_INVERSE_OF, FORWARD_CHAIN_OWL_SAMEAS_CLOSURE, FORWARD_CHAIN_OWL_SAMEAS_PROPERTIES, FORWARD_CHAIN_OWL_TRANSITIVE_PROPERTY, FORWARD_CHAIN_RDF_TYPE_RDFS_RESOURCE

Fields inherited from interface com.bigdata.journal.Options

ALTERNATE_ROOT_BLOCK, BUFFER_MODE, CREATE, CREATE_TEMP_FILE, CREATE_TIME, DEFAULT_BUFFER_MODE, DEFAULT_CREATE, DEFAULT_CREATE_TEMP_FILE, DEFAULT_DELETE_ON_CLOSE, DEFAULT_DELETE_ON_EXIT, DEFAULT_DOUBLE_SYNC, DEFAULT_FILE_LOCK_ENABLED, DEFAULT_FORCE_ON_COMMIT, DEFAULT_FORCE_WRITES, DEFAULT_HISTORICAL_INDEX_CACHE_CAPACITY, DEFAULT_HISTORICAL_INDEX_CACHE_TIMEOUT, DEFAULT_INITIAL_EXTENT, DEFAULT_LIVE_INDEX_CACHE_CAPACITY, DEFAULT_LIVE_INDEX_CACHE_TIMEOUT, DEFAULT_MAXIMUM_EXTENT, DEFAULT_READ_CACHE_CAPACITY, DEFAULT_READ_CACHE_MAX_RECORD_SIZE, DEFAULT_READ_ONLY, DEFAULT_USE_DIRECT_BUFFERS, DEFAULT_VALIDATE_CHECKSUM, DEFAULT_WRITE_CACHE_CAPACITY, DELETE_ON_CLOSE, DELETE_ON_EXIT, DOUBLE_SYNC, FILE, FILE_LOCK_ENABLED, FORCE_ON_COMMIT, FORCE_WRITES, HISTORICAL_INDEX_CACHE_CAPACITY, HISTORICAL_INDEX_CACHE_TIMEOUT, INITIAL_EXTENT, JNL, LIVE_INDEX_CACHE_CAPACITY, LIVE_INDEX_CACHE_TIMEOUT, MAXIMUM_EXTENT, minimumInitialExtent, minimumWriteCacheCapacity, OFFSET_BITS, READ_CACHE_CAPACITY, READ_CACHE_MAX_RECORD_SIZE, READ_ONLY, SEG, TMP_DIR, USE_DIRECT_BUFFERS, VALIDATE_CHECKSUM, WRITE_CACHE_CAPACITY

Fields inherited from interface com.bigdata.btree.keys.KeyBuilder.Options

COLLATOR, DECOMPOSITION, STRENGTH, USER_COUNTRY, USER_LANGUAGE, USER_VARIANT

Fields inherited from interface com.bigdata.rdf.store.DataLoader.Options

CLOSURE, COMMIT, DEFAULT_CLOSURE, DEFAULT_COMMIT, DEFAULT_FLUSH, DEFAULT_VERIFY_DATA, FLUSH, VERIFY_DATA

Fields inherited from interface com.bigdata.search.FullTextIndex.Options

DEFAULT_INDEXER_COLLATOR_STRENGTH, DEFAULT_INDEXER_TIMEOUT, DEFAULT_OVERWRITE, INDEXER_COLLATOR_STRENGTH, INDEXER_TIMEOUT, OVERWRITE

Field Detail

TRUTH_MAINTENANCE

static final String TRUTH_MAINTENANCE

This optional boolean property may be used to specify whether or not RDFS entailments are maintained by eager closure of the knowledge base (the default is true). This property only effects data loaded through the Sail.

DEFAULT_TRUTH_MAINTENANCE

static final String DEFAULT_TRUTH_MAINTENANCE

See Also:

Constant Field Values

BUFFER_CAPACITY

static final String BUFFER_CAPACITY

The capacity of the statement buffer used to absorb writes.

See Also:

DEFAULT_BUFFER_CAPACITY

DEFAULT_BUFFER_CAPACITY

static final String DEFAULT_BUFFER_CAPACITY

See Also:

Constant Field Values

NATIVE_JOINS

static final String NATIVE_JOINS

This boolean may be used to specify whether or not to use "native" joins, bypassing the Sesame join mechanism (default "true"). Native joins translate high-level query from an TupleExpr into an IRule and then execute the IRule. The generated IRules operate directly with the SPORelation and SPO objects using internal 64-bit term identifiers rather than RDF Values. When query results are externalized, efficient batch resolution is used to translate from those 64-bit term identifiers to BigdataValues.

See Also:

DEFAULT_NATIVE_JOINS

DEFAULT_NATIVE_JOINS

static final String DEFAULT_NATIVE_JOINS

See Also:

Constant Field Values

QUERY_TIME_EXPANDER

static final String QUERY_TIME_EXPANDER

Option (default true) may be used to explicitly disable query-time expansion for entailments NOT computed during closure. In particular, this may be used to disable the query time expansion of (x rdf:type rdfs:Resource) and owl:sameAs. (Those entailments are fast for the LocalTripleStore but have not been optimized for scale-out deployments.)

See Also:

DEFAULT_QUERY_TIME_EXPANDER

DEFAULT_QUERY_TIME_EXPANDER

static final String DEFAULT_QUERY_TIME_EXPANDER

See Also:

Constant Field Values