org.teiid.query.optimizer

Class DdlPlanner

java.lang.Object

org.teiid.query.optimizer.DdlPlanner

All Implemented Interfaces:

CommandPlanner

public class DdlPlanner
extends Object
implements CommandPlanner

Constructor Summary

Constructors

Constructor and Description
DdlPlanner()

Method Summary

Modifier and Type	Method and Description
ProcessorPlan	optimize(Command command, IDGenerator idGenerator, QueryMetadataInterface metadata, CapabilitiesFinder capFinder, AnalysisRecord analysisRecord, CommandContext context) Allows the planner a chance to optimize the canonical plan(s) stored in the CommandTreeNode tree.

Methods inherited from class java.lang.Object

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

Constructor Detail

DdlPlanner

public DdlPlanner()

Method Detail

optimize

public ProcessorPlan optimize(Command command,
                              IDGenerator idGenerator,
                              QueryMetadataInterface metadata,
                              CapabilitiesFinder capFinder,
                              AnalysisRecord analysisRecord,
                              CommandContext context)
                       throws QueryPlannerException,
                              QueryMetadataException,
                              TeiidComponentException

Description copied from interface: CommandPlanner

Allows the planner a chance to optimize the canonical plan(s) stored in the CommandTreeNode tree. This method should be called in a bottom-up manner; from leaf nodes up to the root node.

Specified by:

optimize in interface CommandPlanner

Parameters:

command - TODO

metadata - source of metadata

capFinder - Class usable to find the connector capabilities for a particular model

Returns:

ProcessorPlan implementation specific to the CommandPlanner

Throws:

QueryPlannerException - indicating a problem in planning

QueryMetadataException - indicating an exception in accessing the metadata

TeiidComponentException - indicating an unexpected exception