org.apache.directory.server.core.partition.impl.btree
Class NoOpOptimizer

java.lang.Object
  org.apache.directory.server.core.partition.impl.btree.NoOpOptimizer

All Implemented Interfaces:

Optimizer

public class NoOpOptimizer
extends java.lang.Object
implements Optimizer

A do nothing optimizer which labels all nodes with BigInteger.valueOf( Integer.MAX_VALUE ) , instead of actually taking scan counts.

Version:

$Rev$, $Date$

Author:

Apache Directory Project

Constructor Summary

NoOpOptimizer()

Method Summary

void	annotate(org.apache.directory.shared.ldap.filter.ExprNode node) Annotates the expression node tree for optimized traversal metrics.

Methods inherited from class java.lang.Object

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

Constructor Detail

NoOpOptimizer

public NoOpOptimizer()

Method Detail

annotate

public void annotate(org.apache.directory.shared.ldap.filter.ExprNode node)
              throws javax.naming.NamingException

Description copied from interface: Optimizer

Annotates the expression node tree for optimized traversal metrics.

Specified by:

annotate in interface Optimizer

Parameters:

node - the root of the expression node tree

Throws:

javax.naming.NamingException - if there are failures while optimizing