# Package org.eclipse.rdf4j.query.algebra.evaluation.util

- Class Summary
  Class | Description
  --- | ---
  EvaluationStrategies | Registry for currently active `EvaluationStrategy` objects.
  MathUtil | A utility class for evaluation of mathematical expressions on RDF literals.
  OrderComparator | A `Comparator` on `BindingSet`s that imposes a total ordering by examining supplied `Order` elements (i.e.
  QueryEvaluationUtil |
  QueryOptimizerList | A query optimizer that contains a list of other query optimizers, which are called consecutively when the list's `QueryOptimizerList.optimize(TupleExpr, Dataset, BindingSet)` method is called.
  Statements | Deprecated. since 2.0.
  TripleSources | Utility methods for working with `TripleSource`s.
  ValueComparator | A comparator that compares values according the SPARQL value ordering as specified in SPARQL Query Language for RDF.
  XMLDatatypeMathUtil | A utility class for evaluation of extended "mathematical" expressions on RDF literals.