net.ontopia.topicmaps.query.impl.utils
Class QueryOptimizer.HierarchyWalker

java.lang.Object
  net.ontopia.topicmaps.query.impl.utils.QueryOptimizer.AbstractQueryOptimizer
      net.ontopia.topicmaps.query.impl.utils.QueryOptimizer.HierarchyWalker

All Implemented Interfaces:

QueryOptimizerIF

Enclosing class:

QueryOptimizer

public static class QueryOptimizer.HierarchyWalker
extends QueryOptimizer.AbstractQueryOptimizer

Replaces simple recursive rules with a more efficient custom implementation that just wraps the recursive step.

Constructor Summary

QueryOptimizer.HierarchyWalker()

Method Summary

java.util.List

optimize(java.util.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

QueryOptimizer.HierarchyWalker

public QueryOptimizer.HierarchyWalker()

Method Detail

optimize

public java.util.List optimize(java.util.List clauses,
                               QueryContext context)

Specified by:

optimize in interface QueryOptimizerIF

Overrides:

optimize in class QueryOptimizer.AbstractQueryOptimizer