org.openrdf.query.algebra.evaluation.impl
Class FilterOptimizer

java.lang.Object
  org.openrdf.query.algebra.evaluation.impl.FilterOptimizer

All Implemented Interfaces:

QueryOptimizer

public class FilterOptimizer
extends Object
implements QueryOptimizer

Optimizes a query model by pushing Filters as far down in the model tree as possible.

Author:

Arjohn Kampman

Nested Class Summary

protected static class	FilterOptimizer.FilterFinder
protected static class	FilterOptimizer.FilterRelocator

Constructor Summary

FilterOptimizer()

Method Summary

void	optimize(TupleExpr tupleExpr, Dataset dataset, BindingSet bindings)

Methods inherited from class java.lang.Object

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

Constructor Detail

FilterOptimizer

public FilterOptimizer()

Method Detail

optimize

public void optimize(TupleExpr tupleExpr,
                     Dataset dataset,
                     BindingSet bindings)

Specified by:

optimize in interface QueryOptimizer