Package org.teiid.query.processor.proc

Class ExecDynamicSqlInstruction

java.lang.Object

org.teiid.query.processor.proc.ProgramInstruction

org.teiid.query.processor.proc.ExecDynamicSqlInstruction

All Implemented Interfaces:

Cloneable

public class ExecDynamicSqlInstruction
extends ProgramInstruction

Executes a SQL statement, and remove its results from the buffer manager. Executing this instruction does not modify the values of any of the variables, hence it's results are not important so they are removed immediately.

Constructor Summary

Constructors

Constructor	Description
ExecDynamicSqlInstruction(CreateProcedureCommand parentProcCommand, DynamicCommand command, QueryMetadataInterface metadata, IDGenerator idGenerator, CapabilitiesFinder capFinder, boolean returnable)

Method Summary

Modifier and Type	Method	Description
ExecDynamicSqlInstruction	clone()	Returns a deep clone
PlanNode	getDescriptionProperties()
boolean	isReturnable()
void	process(ProcedurePlan procEnv)	Processing this instruction executes the ProcessorPlan for the command on the CommandStatement of the update procedure language.
Boolean	requiresTransaction(boolean transactionalReads)
void	setReturnable(boolean returnable)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ExecDynamicSqlInstruction

public ExecDynamicSqlInstruction(CreateProcedureCommand parentProcCommand,
                                 DynamicCommand command,
                                 QueryMetadataInterface metadata,
                                 IDGenerator idGenerator,
                                 CapabilitiesFinder capFinder,
                                 boolean returnable)

Method Detail

process

public void process(ProcedurePlan procEnv)
             throws BlockedException,
                    TeiidComponentException,
                    TeiidProcessingException

Processing this instruction executes the ProcessorPlan for the command on the CommandStatement of the update procedure language. Executing this plan does not effect the values of any of the variables defined as part of the update procedure and hence the results of the ProcessPlan execution need not be stored for further processing. The results are removed from the buffer manager immediately after execution. The program counter is incremented after execution of the plan.

Specified by:

process in class ProgramInstruction

Throws:

BlockedException - if this processing the plan throws a currentVarContext

TeiidComponentException

TeiidProcessingException

clone

public ExecDynamicSqlInstruction clone()

Returns a deep clone

Overrides:

clone in class ProgramInstruction

Returns:

shallow clone

toString

public String toString()

Overrides:

toString in class Object

getDescriptionProperties

public PlanNode getDescriptionProperties()

Specified by:

getDescriptionProperties in class ProgramInstruction

isReturnable

public boolean isReturnable()

setReturnable

public void setReturnable(boolean returnable)

requiresTransaction

public Boolean requiresTransaction(boolean transactionalReads)

Overrides:

requiresTransaction in class ProgramInstruction