Uses of Interface
com.bigdata.rdf.sparql.ast.optimizers.IASTOptimizer

Packages that use IASTOptimizer

Package	Description
com.bigdata.rdf.sparql.ast.eval
com.bigdata.rdf.sparql.ast.optimizers

Uses of IASTOptimizer in com.bigdata.rdf.sparql.ast.eval

Classes in com.bigdata.rdf.sparql.ast.eval that implement IASTOptimizer

Modifier and Type	Class and Description
class	ASTFulltextSearchOptimizer Translate FTS.SEARCH and related magic predicates into a ServiceNode which will invoke the bigdata search engine.
class	ASTGeoSpatialSearchOptimizer Translate FTS#GEOSPATIAL and related magic predicates into a ServiceNode which will invoke the bigdata geospatial service.
class	ASTSearchInSearchOptimizer Converts a BDS.SEARCH_IN_SEARCH function call (inside a filter) into an IN filter using the full text index to determine the IN set.
class	ASTSearchOptimizer Translate BDS.SEARCH and related magic predicates into a ServiceNode which will invoke the bigdata search engine.
class	ASTSearchOptimizerBase Translate FTS.SEARCH and related magic predicates into a ServiceNode which will invoke the bigdata search engine.

Uses of IASTOptimizer in com.bigdata.rdf.sparql.ast.optimizers

Classes in com.bigdata.rdf.sparql.ast.optimizers that implement IASTOptimizer

Modifier and Type	Class and Description
class	AbstractJoinGroupOptimizer This makes it easier to sit down and write an optimizer that operates on a group.
protected static class	AbstractOptimizerTestCase.ASTPropertyPathOptimizerInTest
class	AskOptimizer ASK queries have a LIMIT of ONE imposed unless they are aggregations.
class	ASTALPServiceOptimizer This ALP SERVICE IASTOptimizer provides a rewrite of a SERVICE expression that makes it possible to specify limits (minimum, maximum path length), directionality of traversal, etc.
class	ASTAttachJoinFiltersOptimizer Optimizer attaches FilterNodes which will run as "join filters" to StatementPatternNodes.
class	ASTBottomUpOptimizer Rewrites aspects of queries where bottom-up evaluation would produce different results.
class	ASTCardinalityOptimizer Calculate the estimated cardinality of a join group.
class	ASTComplexOptionalOptimizer Deprecated.
class	ASTConstructOptimizer Generates the ProjectionNode for a CONSTRUCT or DESCRIBE query.
class	ASTDescribeOptimizer This optimizer rewrites the projection node of a DESCRIBE query into, generating a CONSTRUCT clause and extending the WHERE clause to capture the semantics of the DESCRIBE query.
class	ASTDistinctTermScanOptimizer Optimizes SELECT (DISTINCT|REDUCED) ?property WHERE { ?x ?property ?y .
class	ASTEmptyGroupOptimizer Eliminate semantically empty join group nodes which are the sole child of another join groups.
class	ASTExistsOptimizer Optimizer identifies value expressions using EXISTS or NOT EXISTS and rewrites them in a form suitable for evaluation by the query engine.
class	ASTFastRangeCountOptimizer Optimizes SELECT COUNT(*) { triple-pattern } using the fast range count mechanisms when that feature would produce exact results for the KB instance.
class	ASTFilterNormalizationOptimizer The ASTFilterNormalizationOptimizer is responsible for the static decomposition and optimization of filter expressions.
class	ASTFlattenJoinGroupsOptimizer Flatten nested (non-optional,non-minus) JoinGroupNodes whenever possible.
class	ASTFlattenUnionsOptimizer Flatten nested UNIONs whenever possible.
class	ASTGraphGroupOptimizer Handles a variety of special constructions related to graph graph groups.
class	ASTHashJoinOptimizer Rewrites join groups having one or more joins which would involve a full cross product as hash joins of sub-groups where there is a constraint imposed indirectly via a FILTER operating across the variables bound by the joins.
class	ASTJoinGroupOrderOptimizer This optimizer brings a join group node into a valid order according to the SPARQL 1.1 semantics and optimizes the order of the nodes in the join group using various heuristics.
class	ASTJoinOrderByTypeOptimizer Deprecated.
class	ASTLiftPreFiltersOptimizer Lift FILTERs which can be evaluated based solely on the bindings in the parent group out of a child group.
class	ASTNamedSubqueryOptimizer Class identifies the join variables for each instance in which a named subquery solution set is incorporated into the query plan.
class	ASTOptimizerList An executable list of query optimizers.
class	ASTOrderByAggregateFlatteningOptimizer This compulsory AST transformation (not an optional optimizer!) enforces the correct treatment of aggregates in ORDER BY clauses, according to the SPARQL semantic, under the asumption that MemorySortOp does not have to deal with aggregates.
class	ASTPropertyPathOptimizer
class	ASTQueryHintOptimizer Query hints are identified applied to AST nodes based on the specified scope and the location within the AST in which they are found.
class	ASTRangeConstraintOptimizer AST optimizer recognizes datatype and/or value range constraints and applies them to as range constraints to StatementPatternNodes.
class	ASTRangeCountOptimizer Attach range counts to all statement patterns in the query.
class	ASTRangeOptimizer Attach range bops.
class	ASTRunFirstRunLastOptimizer This optimizer simply puts each type of IGroupMemberNode within a JoinGroupNode in the right order w.r.t.
class	ASTServiceNodeOptimizer Rewrites the WHERE clause of each query by lifting out ServiceNodes into a named subquery.
class	ASTSetValueExpressionsOptimizer Visit all the value expression nodes and convert them into value expressions using AST2BOpUtility#toVE(String, IValueExpressionNode).
class	ASTSimpleGroupByAndCountOptimizer Optimizes SELECT (COUNT(*) as ?count) ?z WHERE { ?x rdf:type ?z } GROUP BY ?z and similar patterns using an O(N) algorithm, where N is the number of distinct solutions.
class	ASTSimpleOptionalOptimizer A "simple optional" is an optional sub-group that contains only one statement pattern, no sub-groups of its own, and no filters that require materialized variables based on the optional statement pattern.
class	ASTSparql11SubqueryOptimizer Lift SubqueryRoots into named subqueries when appropriate.
class	ASTStaticBindingsOptimizer Optimizer that aims at the optimization of SPARQL 1.1 pattern detecting static (i.e., non runtime dependent) binding for variables, moving them to the top-level of the query where possible, and attaching them with occurrences of the variable.
class	ASTStaticJoinOptimizer This is an AST optimizer port of the old "static" optimizer - DefaultEvaluationPlan2.
class	ASTSubGroupJoinVarOptimizer Optimizer assigns join variables to sub-groups.
class	ASTUnionFiltersOptimizer
class	ASTUnknownTermOptimizer Pruning rules for unknown IVs in statement patterns: If an optional join is known to fail, then remove the optional group in which it appears from the group (which could be an optional group, a join group, or a union).
class	ASTWildcardProjectionOptimizer Rewrites any ProjectionNode with a wild card into the set of variables visible to the QueryBase having that projection.
class	DefaultOptimizerList Pre-populated list of the default optimizers.

Methods in com.bigdata.rdf.sparql.ast.optimizers with parameters of type IASTOptimizer

Modifier and Type	Method and Description
boolean	ASTOptimizerList.add(IASTOptimizer opt)

Constructors in com.bigdata.rdf.sparql.ast.optimizers with parameters of type IASTOptimizer

Constructor and Description
ASTOptimizerList(IASTOptimizer... optimizers)

Constructor parameters in com.bigdata.rdf.sparql.ast.optimizers with type arguments of type IASTOptimizer

Constructor and Description
ASTOptimizerList(Collection<IASTOptimizer> c)