com.bigdata.relation

Interface AbstractResource.Options

All Known Subinterfaces:

AbstractTripleStore.Options, BigdataSail.Options, LocalTripleStore.Options, TempTripleStore.Options

Enclosing class:

AbstractResource<E>

public static interface AbstractResource.Options

Options for locatable resources.

Version:

$Id$

Author:

Bryan Thompson

Field Summary

Fields

Modifier and Type	Field and Description
static String	CHUNK_CAPACITY Deprecated. by BOp annotations.
static String	CHUNK_OF_CHUNKS_CAPACITY Deprecated. by BOp annotations.
static String	CHUNK_TIMEOUT Deprecated. by BOp annotations.
static String	DEFAULT_CHUNK_CAPACITY Deprecated. by BOp annotations.
static String	DEFAULT_CHUNK_OF_CHUNKS_CAPACITY Deprecated. by BOp annotations.
static String	DEFAULT_CHUNK_TIMEOUT Deprecated. by BOp annotations.
static String	DEFAULT_FORCE_SERIAL_EXECUTION Deprecated. by BOp annotations.
static String	DEFAULT_FULLY_BUFFERED_READ_THRESHOLD Deprecated. by BOp annotations.
static String	DEFAULT_MAX_PARALLEL_SUBQUERIES Deprecated. by BOp annotations.
static String	FORCE_SERIAL_EXECUTION Deprecated. by BOp annotations.
static String	FULLY_BUFFERED_READ_THRESHOLD Deprecated. by BOp annotations.
static String	MAX_PARALLEL_SUBQUERIES Deprecated. by BOp annotations.

Field Detail

CHUNK_OF_CHUNKS_CAPACITY

static final String CHUNK_OF_CHUNKS_CAPACITY

Deprecated. by BOp annotations.

Set the maximum #of chunks from concurrent producers that can be buffered before an IBuffer containing chunks of ISolutions would block (default DEFAULT_CHUNK_OF_CHUNKS_CAPACITY). This is used to provision a BlockingQueue for BlockingBuffer. A value of ZERO(0) indicates that a SynchronousQueue should be used instead. The best value may be more than the #of concurrent producers if the producers are generating small chunks, e.g., because there are few solutions for a join subquery.

DEFAULT_CHUNK_OF_CHUNKS_CAPACITY

static final String DEFAULT_CHUNK_OF_CHUNKS_CAPACITY

Deprecated. by BOp annotations.

Default for CHUNK_OF_CHUNKS_CAPACITY

See Also:

Constant Field Values

CHUNK_CAPACITY

static final String CHUNK_CAPACITY

Deprecated. by BOp annotations.

Sets the capacity of the IBuffers used to accumulate a chunk when evaluating rules, etc (default ). Note that many processes use a BlockingBuffer to accumulate "chunks of chunks".

See Also:

CHUNK_OF_CHUNKS_CAPACITY

DEFAULT_CHUNK_CAPACITY

static final String DEFAULT_CHUNK_CAPACITY

Deprecated. by BOp annotations.

Default for CHUNK_CAPACITY

Note: This used to be 20k, but chunks of chunks works better than just a large chunk.

See Also:

Constant Field Values

CHUNK_TIMEOUT

static final String CHUNK_TIMEOUT

Deprecated. by BOp annotations.

The timeout in milliseconds that the BlockingBuffer will wait for another chunk to combine with the current chunk before returning the current chunk (default DEFAULT_CHUNK_TIMEOUT). This may be ZERO (0) to disable the chunk combiner.

DEFAULT_CHUNK_TIMEOUT

static final String DEFAULT_CHUNK_TIMEOUT

Deprecated. by BOp annotations.

The default for CHUNK_TIMEOUT.

See Also:

Constant Field Values

FULLY_BUFFERED_READ_THRESHOLD

static final String FULLY_BUFFERED_READ_THRESHOLD

Deprecated. by BOp annotations.

If the estimated rangeCount for an AccessPath.iterator() is LTE this threshold then use a fully buffered (synchronous) iterator. Otherwise use an asynchronous iterator whose capacity is governed by CHUNK_OF_CHUNKS_CAPACITY.

DEFAULT_FULLY_BUFFERED_READ_THRESHOLD

static final String DEFAULT_FULLY_BUFFERED_READ_THRESHOLD

Deprecated. by BOp annotations.

Default for FULLY_BUFFERED_READ_THRESHOLD

See Also:

Constant Field Values

FORCE_SERIAL_EXECUTION

static final String FORCE_SERIAL_EXECUTION

Deprecated. by BOp annotations.

When true ("true"), rule sets will be forced to execute sequentially even when they are not flagged as a sequential program.

DEFAULT_FORCE_SERIAL_EXECUTION

static final String DEFAULT_FORCE_SERIAL_EXECUTION

Deprecated. by BOp annotations.

See Also:

Constant Field Values

MAX_PARALLEL_SUBQUERIES

static final String MAX_PARALLEL_SUBQUERIES

Deprecated. by BOp annotations.

The maximum #of subqueries for the first join dimension that will be issued in parallel. Use ZERO(0) to avoid submitting tasks to the ExecutorService entirely and ONE (1) to submit a single task at a time to the ExecutorService.

DEFAULT_MAX_PARALLEL_SUBQUERIES

static final String DEFAULT_MAX_PARALLEL_SUBQUERIES

Deprecated. by BOp annotations.

See Also:

Constant Field Values