com.vertica.sdk.ExecutorPlanContext Class Reference

Inheritance diagram for com.vertica.sdk.ExecutorPlanContext:

Collaboration diagram for com.vertica.sdk.ExecutorPlanContext:

Public Member Functions
	ExecutorPlanContext (ExecutorParamWriter writer, ArrayList< String > clusterNodes, ArrayList< String > targetNodes, boolean canApportionSource, int maxAllowedThreads)
	ExecutorPlanContext (ExecutorParamWriter writer, ArrayList< String > clusterNodes, ArrayList< String > targetNodes, boolean canApportionSource, int maxAllowedThreads, int actualThreads)
boolean	canApportionSource ()
ArrayList< String >	getClusterNodes ()
int	getLoadConcurrency ()
int	getMaxAllowedThreads ()
ParamReader	getReader ()
SourceIterator	getSources ()
ArrayList< String >	getTargetNodes ()
ExecutorParamWriter	getWriter ()
void	setSources (SourceIterator sources)
void	setTargetNodes (ArrayList< String > nodes) throws UdfException

Detailed Description

A PlanContext object whose scope is limited to a single executor node: it and its parameters will never be serialized. In addition to providing information about nodes involved in a query, it indicates how many threads are available and allocated for a load. This class is used for UDLs.

Member Function Documentation

getClusterNodes()

ArrayList<String> com.vertica.sdk.PlanContext.getClusterNodes ( )

inherited

Returns

A list of all of the nodes in the current cluster, by node name

Referenced by com.vertica.sdk.NodeSpecifyingPlanContext.setTargetNodes().

getReader()

ParamReader com.vertica.sdk.PlanContext.getReader ( )

inherited

Returns

A read-only instance of the current context

getTargetNodes()

ArrayList<String> com.vertica.sdk.NodeSpecifyingPlanContext.getTargetNodes ( )

inherited

Returns

The set of nodes that this query is currently set to run on

setTargetNodes()

void com.vertica.sdk.NodeSpecifyingPlanContext.setTargetNodes ( ArrayList< String >  nodes ) throws UdfException

inherited

Change the set of nodes that the query is intended to run on.

Parameters

nodes

new target nodes

Exceptions

UdfException

if any of the specified node names is not actually the name of any node in the cluster.