org.apache.flink.optimizer.plan

Class OptimizedPlan

java.lang.Object

org.apache.flink.optimizer.plan.OptimizedPlan

All Implemented Interfaces:

Visitable<PlanNode>

public class OptimizedPlan
extends Object
implements Visitable<PlanNode>

The execution plan generated by the Optimizer. It contains PlanNodes and Channels that describe exactly how the program should be executed.

The optimized plan defines all ship strategies (local pipe, shuffle, broadcast, rebalance), all operator strategies (sorting-merge join, hash join, sorted grouping, ...), and the data exchange modes (batched, pipelined).

Constructor Summary

Constructors

Constructor and Description
OptimizedPlan(Collection<SourcePlanNode> sources, Collection<SinkPlanNode> sinks, Collection<PlanNode> allNodes, String jobName, Plan programPlan) Creates a new instance of this optimizer plan container.

Method Summary

Modifier and Type	Method and Description
void	accept(Visitor<PlanNode> visitor) Applies the given visitor top down to all nodes, starting at the sinks.
Collection<PlanNode>	getAllNodes() Gets all the nodes from this OptimizedPlan.
Collection<SinkPlanNode>	getDataSinks() Gets the data sinks from this OptimizedPlan.
Collection<SourcePlanNode>	getDataSources() Gets the data sources from this OptimizedPlan.
String	getJobName() Returns the name of the program.
Plan	getOriginalPlan() Gets the original program's dataflow plan from which this optimized plan was created.

Methods inherited from class java.lang.Object

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

Constructor Detail

OptimizedPlan

public OptimizedPlan(Collection<SourcePlanNode> sources,
                     Collection<SinkPlanNode> sinks,
                     Collection<PlanNode> allNodes,
                     String jobName,
                     Plan programPlan)

Creates a new instance of this optimizer plan container. The plan is given and fully described by the data sources, sinks and the collection of all nodes.

Parameters:

sources - The data sources.

sinks - The data sinks.

allNodes - A collection containing all nodes in the plan.

jobName - The name of the program

Method Detail

getDataSources

public Collection<SourcePlanNode> getDataSources()

Gets the data sources from this OptimizedPlan.

Returns:

The data sources.

getDataSinks

public Collection<SinkPlanNode> getDataSinks()

Gets the data sinks from this OptimizedPlan.

Returns:

The data sinks.

getAllNodes

public Collection<PlanNode> getAllNodes()

Gets all the nodes from this OptimizedPlan.

Returns:

All nodes.

getJobName

public String getJobName()

Returns the name of the program.

Returns:

The name of the program.

getOriginalPlan

public Plan getOriginalPlan()

Gets the original program's dataflow plan from which this optimized plan was created.

Returns:

The original program's dataflow plan.

accept

public void accept(Visitor<PlanNode> visitor)

Applies the given visitor top down to all nodes, starting at the sinks.

Specified by:

accept in interface Visitable<PlanNode>

Parameters:

visitor - The visitor to apply to the nodes in this plan.

See Also:

Visitable.accept(org.apache.flink.util.Visitor)