QueryOptimizer.Reorderer (Ontopia)

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

All Implemented Interfaces:

QueryOptimizerIF

Enclosing class:

QueryOptimizer
```
public static class QueryOptimizer.Reorderer
extends QueryOptimizer.AbstractQueryOptimizer
```
INTERNAL: Optimizes the query by reordering the clauses into the optimal order for evaluation. See http://www.ontopia.net/topicmaps/materials/tolog.html, under 'Optimizing queries'.

- Constructor Summary
  
  Constructors
  Constructor Description
  
  Reorderer(boolean predicate_based)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  List optimize(List qclauses, QueryContext qcontext)
  - 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

Reorderer

public Reorderer(boolean predicate_based)

Method Detail
- optimize
```
public List optimize(List qclauses,
                     QueryContext qcontext)
```
  Specified by:
  
  optimize in interface QueryOptimizerIF
  
  Overrides:
  
  optimize in class QueryOptimizer.AbstractQueryOptimizer