net.ontopia.topicmaps.query.impl.utils

Class QueryOptimizer.TypeConflictResolver

java.lang.Object

net.ontopia.topicmaps.query.impl.utils.QueryOptimizer.AbstractQueryOptimizer

net.ontopia.topicmaps.query.impl.utils.QueryOptimizer.TypeConflictResolver

All Implemented Interfaces:

QueryOptimizerIF

Enclosing class:

QueryOptimizer

public static class QueryOptimizer.TypeConflictResolver
extends QueryOptimizer.AbstractQueryOptimizer

Finds cases of conflicting variables and resolves them by replacing predicates which can never succeed with DynamicFailurePredicate.

Constructor Summary

Constructors

Constructor and Description
TypeConflictResolver()

Method Summary

Modifier and Type	Method and Description
List	optimize(List clauses, QueryContext context)

Methods inherited from class net.ontopia.topicmaps.query.impl.utils.QueryOptimizer.AbstractQueryOptimizer

optimize, optimize

Methods inherited from class java.lang.Object

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

Constructor Detail

TypeConflictResolver

public TypeConflictResolver()

Method Detail

optimize

public List optimize(List clauses,
                     QueryContext context)
              throws InvalidQueryException

Specified by:

optimize in interface QueryOptimizerIF

Overrides:

optimize in class QueryOptimizer.AbstractQueryOptimizer

Throws:

InvalidQueryException