org.teiid.query.processor.proc

Class BlockInstruction

java.lang.Object

org.teiid.query.processor.proc.ProgramInstruction

org.teiid.query.processor.proc.BlockInstruction

All Implemented Interfaces:

Cloneable

public class BlockInstruction
extends ProgramInstruction

Constructor Summary

Constructors

Constructor and Description
BlockInstruction(Program ifProgram)

Method Summary

Modifier and Type	Method and Description
BlockInstruction	clone() Returns a deep clone
PlanNode	getDescriptionProperties()
Program	getProgram()
void	process(ProcedurePlan procEnv) Allow this instruction to do whatever processing it needs, and to in turn manipulate the running program.
Boolean	requiresTransaction(boolean transactionalReads)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

BlockInstruction

public BlockInstruction(Program ifProgram)

Method Detail

process

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

Description copied from class: ProgramInstruction

Allow this instruction to do whatever processing it needs, and to in turn manipulate the running program. A typical instruction should simply increment the program counter of the current program, but specialized instructions may add sub programs to the stack or not increment the counter (so that they are executed again.)

Specified by:

process in class ProgramInstruction

Throws:

BlockedException

TeiidComponentException

TeiidProcessingException

getProgram

public Program getProgram()

clone

public BlockInstruction 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

requiresTransaction

public Boolean requiresTransaction(boolean transactionalReads)

Overrides:

requiresTransaction in class ProgramInstruction