QueryOptimizer.HierarchyWalker (Ontopia)

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
  
  Constructors
  Constructor Description
  
  HierarchyWalker()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method 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
  - HierarchyWalker
```
public HierarchyWalker()
```
- Method Detail
  - optimize
```
public List optimize(List clauses,
                     QueryContext context)
```
    Specified by:
    
    optimize in interface QueryOptimizerIF
    
    Overrides:
    
    optimize in class QueryOptimizer.AbstractQueryOptimizer