com.bigdata.rdf.sail

Class BigdataValueReplacer

java.lang.Object

com.bigdata.rdf.sail.BigdataValueReplacer

public class BigdataValueReplacer
extends Object

Utility class to manage the efficient translation of openrdf Values in a BindingSet into the BigdataValues used internally by bigdata.

Version:

$Id: BigdataValueReplacer.java 5159 2011-09-08 15:35:15Z thompsonbry $

Author:

Bryan Thompson

See Also:

BigdataOpenRDFBindingSetsResolverator

Constructor Summary

Constructors

Constructor and Description
BigdataValueReplacer(AbstractTripleStore database)

Method Summary

Methods

Modifier and Type	Method and Description
Object[]	replaceValues(org.openrdf.query.Dataset dataset, org.openrdf.query.BindingSet[] bindingSets) Batch resolve and replace all Value objects stored in variables or in the Dataset with BigdataValue objects, which have access to the 64-bit internal term identifier associated with each value in the database.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BigdataValueReplacer

public BigdataValueReplacer(AbstractTripleStore database)

Method Detail

replaceValues

public Object[] replaceValues(org.openrdf.query.Dataset dataset,
                     org.openrdf.query.BindingSet[] bindingSets)

Batch resolve and replace all Value objects stored in variables or in the Dataset with BigdataValue objects, which have access to the 64-bit internal term identifier associated with each value in the database.

Note: The native rule execution must examine the resulting BigdataValues. If any value does not exist in the lexicon then its term identifier will be ZERO (0L). Term identifiers of ZERO (0L) WILL NOT match anything in the data and MUST NOT be executed since a ZERO (0L) will be interpreted as a variable!

Returns:

yucky hack, need to return a new dataset and a new binding set. dataset is [0], binding set is [1]