Uses of Class
net.ontopia.topicmaps.query.impl.utils.QueryOptimizer.AbstractQueryOptimizer

Packages that use QueryOptimizer.AbstractQueryOptimizer

Package	Description
net.ontopia.topicmaps.query.impl.utils	Code shared between query implementations.

Uses of QueryOptimizer.AbstractQueryOptimizer in net.ontopia.topicmaps.query.impl.utils

Subclasses of QueryOptimizer.AbstractQueryOptimizer in net.ontopia.topicmaps.query.impl.utils

Modifier and Type	Class and Description
static class	QueryOptimizer.AddTypeToRolePlayer INTERNAL:
static class	QueryOptimizer.HierarchyWalker Replaces simple recursive rules with a more efficient custom implementation that just wraps the recursive step.
static class	QueryOptimizer.NextPreviousOptimizer INTERNAL: Optimizes queries that look for the next or the previous value in a sequence from a given start value to not load all values and then do it the hard way, but instead to use a sorted index.
static class	QueryOptimizer.RecursivePruner This optimizer adds RemoveDuplicatesPredicate on both sides of recursive calls within predicate rules.
static class	QueryOptimizer.Reorderer INTERNAL: Optimizes the query by reordering the clauses into the optimal order for evaluation.
static class	QueryOptimizer.RuleInliner INTERNAL: Optimizes the query by inlining all rules which are simple aliases for a single predicate.
static class	QueryOptimizer.StringPrefixOptimizer INTERNAL: Optimizes queries that do lookup of occurrences by string value, then filter the string value by a prefix.
static class	QueryOptimizer.TypeConflictResolver Finds cases of conflicting variables and resolves them by replacing predicates which can never succeed with DynamicFailurePredicate.