## Uses of Interface
org.eclipse.rdf4j.query.algebra.evaluation.QueryOptimizer

- Packages that use QueryOptimizer
  Package | Description
  --- | ---
  org.eclipse.rdf4j.query.algebra.evaluation |
  org.eclipse.rdf4j.query.algebra.evaluation.impl |
  org.eclipse.rdf4j.query.algebra.evaluation.util |
  org.eclipse.rdf4j.sail.federation.optimizers |
  org.eclipse.rdf4j.sail.spin | See discussion at https://github.com/eclipse/rdf4j/issues/1262

- - ### Uses of QueryOptimizer in org.eclipse.rdf4j.query.algebra.evaluation

    Methods in org.eclipse.rdf4j.query.algebra.evaluation that return types with arguments of type QueryOptimizer
    Modifier and Type | Method and Description
    --- | ---
    `Iterable<QueryOptimizer>` | QueryOptimizerPipeline.`getOptimizers()` Get the optimizers that make up this pipeline.

  - ### Uses of QueryOptimizer in org.eclipse.rdf4j.query.algebra.evaluation.impl

    Classes in org.eclipse.rdf4j.query.algebra.evaluation.impl that implement QueryOptimizer
    Modifier and Type | Class and Description
    --- | ---
    `class` | `BindingAssigner` Assigns values to variables based on a supplied set of bindings.
    `class` | `BindingSetAssignmentInliner` Optimizes a query model by inlining `BindingSetAssignment` values where possible.
    `class` | `CompareOptimizer` A query optimizer that replaces `Compare` operators with `SameTerm`s, if possible.
    `class` | `ConjunctiveConstraintSplitter` Splits conjunctive constraints into seperate constraints.
    `class` | `ConstantOptimizer` A query optimizer that optimizes constant value expressions.
    `class` | `DisjunctiveConstraintOptimizer` A query optimizer that optimize disjunctive constraints on tuple expressions.
    `class` | `FilterOptimizer` Optimizes a query model by pushing `Filter`s as far down in the model tree as possible.
    `class` | `IterativeEvaluationOptimizer`
    `class` | `OrderLimitOptimizer` Moves the Order node above the Projection when variables are projected.
    `class` | `ParentReferenceCleaner` Cleans up `QueryModelNode.getParentNode()` references that have become inconsistent with the actual algebra tree structure due to optimization operations.
    `class` | `QueryJoinOptimizer` A query optimizer that re-orders nested Joins.
    `class` | `QueryModelNormalizer` A query optimizer that (partially) normalizes query models to a canonical form.
    `class` | `QueryModelPruner` Deprecated. Replaced by `QueryModelNormalizer`.
    `class` | `RegexAsStringFunctionOptimizer` A query optimizer that replaces REGEX with `FunctionCall`s that are equivalent operators
    `class` | `SameTermFilterOptimizer` A query optimizer that embeds `Filter`s with `SameTerm` operators in statement patterns as much as possible.
    `class` | `UnionScopeChangeOptimizer` Inspect Union clauses to check if scope change can be avoided (allowing injection of pre-bound vars into union arguments).

    Methods in org.eclipse.rdf4j.query.algebra.evaluation.impl that return types with arguments of type QueryOptimizer
    Modifier and Type | Method and Description
    --- | ---
    `Iterable<QueryOptimizer>` | StandardQueryOptimizerPipeline.`getOptimizers()`

  - ### Uses of QueryOptimizer in org.eclipse.rdf4j.query.algebra.evaluation.util

    Classes in org.eclipse.rdf4j.query.algebra.evaluation.util that implement QueryOptimizer
    Modifier and Type | Class and Description
    --- | ---
    `class` | `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.

    Fields in org.eclipse.rdf4j.query.algebra.evaluation.util with type parameters of type QueryOptimizer
    Modifier and Type | Field and Description
    --- | ---
    `protected List<QueryOptimizer>` | QueryOptimizerList.`optimizers`

    Methods in org.eclipse.rdf4j.query.algebra.evaluation.util with parameters of type QueryOptimizer
    Modifier and Type | Method and Description
    --- | ---
    `void` | QueryOptimizerList.`add(QueryOptimizer optimizer)`

    Constructors in org.eclipse.rdf4j.query.algebra.evaluation.util with parameters of type QueryOptimizer
    Constructor and Description
    `QueryOptimizerList(QueryOptimizer... optimizers)`

    Constructor parameters in org.eclipse.rdf4j.query.algebra.evaluation.util with type arguments of type QueryOptimizer
    Constructor and Description
    `QueryOptimizerList(List<QueryOptimizer> optimizers)`

  - ### Uses of QueryOptimizer in org.eclipse.rdf4j.sail.federation.optimizers

    Classes in org.eclipse.rdf4j.sail.federation.optimizers that implement QueryOptimizer
    Modifier and Type | Class and Description
    --- | ---
    `class` | `EmptyPatternOptimizer` Remove StatementPatterns that have no statements.
    `class` | `FederationJoinOptimizer` Deprecated. since 3.1.0. This module will be replaced by the new FedX federation module.
    `class` | `OwnedTupleExprPruner` Remove redundant `OwnedTupleExpr`.
    `class` | `PrepareOwnedTupleExpr` Remove redundant `OwnedTupleExpr`.
    `class` | `QueryMultiJoinOptimizer` A query optimizer that re-orders nested Joins.

  - ### Uses of QueryOptimizer in org.eclipse.rdf4j.sail.spin

    Classes in org.eclipse.rdf4j.sail.spin that implement QueryOptimizer
    Modifier and Type | Class and Description
    --- | ---
    `class` | `SpinFunctionInterpreter` QueryOptimizer that adds support for SPIN functions.
    `class` | `SpinMagicPropertyInterpreter`

Copyright © 2015-2021 Eclipse Foundation. All Rights Reserved.