org.openrdf.sail.rdbms.evaluation
Class RdbmsEvaluation

java.lang.Object
  org.openrdf.query.algebra.evaluation.impl.EvaluationStrategyImpl
      org.openrdf.sail.rdbms.evaluation.RdbmsEvaluation

All Implemented Interfaces:

EvaluationStrategy

public class RdbmsEvaluation
extends EvaluationStrategyImpl

Extends the default strategy by accepting SelectQuery and evaluating them on a database.

Author:

James Leigh

Field Summary

Fields inherited from class org.openrdf.query.algebra.evaluation.impl.EvaluationStrategyImpl

dataset, tripleSource

Constructor Summary

RdbmsEvaluation(QueryBuilderFactory factory, RdbmsTripleRepository triples, Dataset dataset, IdSequence ids)

Method Summary

CloseableIteration<BindingSet,QueryEvaluationException>

evaluate(TupleExpr expr, BindingSet bindings) Evaluates the tuple expression against the supplied triple source with the specified set of variable bindings as input.

Methods inherited from class org.openrdf.query.algebra.evaluation.impl.EvaluationStrategyImpl

evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, evaluate, getVarValue, isTrue

Methods inherited from class java.lang.Object

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

Constructor Detail

RdbmsEvaluation

public RdbmsEvaluation(QueryBuilderFactory factory,
                       RdbmsTripleRepository triples,
                       Dataset dataset,
                       IdSequence ids)

Method Detail

evaluate

public CloseableIteration<BindingSet,QueryEvaluationException> evaluate(TupleExpr expr,
                                                                        BindingSet bindings)
                                                                 throws QueryEvaluationException

Description copied from interface: EvaluationStrategy

Evaluates the tuple expression against the supplied triple source with the specified set of variable bindings as input.

Specified by:

evaluate in interface EvaluationStrategy

Overrides:

evaluate in class EvaluationStrategyImpl

Parameters:

expr - The Tuple Expression to evaluate

bindings - The variables bindings to use for evaluating the expression, if applicable.

Returns:

A closeable iterator over the variable binding sets that match the tuple expression.

Throws:

QueryEvaluationException