com.bigdata.rdf.spo

Interface ISPOBuffer

All Known Subinterfaces:

ISPOAssertionBuffer

All Known Implementing Classes:

AbstractSPOBuffer, SPOAssertionBuffer, SPORetractionBuffer

Deprecated.

by IBuffer

public interface ISPOBuffer

A buffer for SPOs. ISPOBuffers are used to collect SPOs into chunks that can be sorted in order to support efficient batch operations on statement indices.

Version:

$Id$

Author:

Bryan Thompson

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	DEBUG Deprecated. True iff the log level is DEBUG or less.
static boolean	INFO Deprecated. True iff the log level is INFO or less.
static org.apache.log4j.Logger	log Deprecated.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	add(ISPO spo) Deprecated. Adds an ISPO.
int	flush() Deprecated. Flush any buffered statements to the backing store.
boolean	isEmpty() Deprecated. True iff there are no statements in the buffer.
int	size() Deprecated. The #of statements currently in the buffer.

Field Detail

log

static final org.apache.log4j.Logger log

Deprecated.

INFO

static final boolean INFO

Deprecated.

True iff the log level is INFO or less.

DEBUG

static final boolean DEBUG

Deprecated.

True iff the log level is DEBUG or less.

Method Detail

size

int size()

Deprecated.

The #of statements currently in the buffer.

isEmpty

boolean isEmpty()

Deprecated.

True iff there are no statements in the buffer.

add

boolean add(ISPO spo)

Deprecated.

Adds an ISPO.

Parameters:

spo - The ISPO.

Returns:

true if the buffer will store the statement (i.e., the statement is not excluded by the filter).

flush

int flush()

Deprecated.

Flush any buffered statements to the backing store.

Returns:

The cumulative #of statements that were written on the indices since the last time the counter was reset. A statement that was previously an axiom or inferred and that is converted to an explicit statement by this method will be reported in this count as well as any statement that was not pre-existing in the database. Statement removal also counts as a "write".

See Also:

#flush(boolean)