org.teiid.query.processor.relational
Class RelationalNodeUtil

java.lang.Object
  org.teiid.query.processor.relational.RelationalNodeUtil

public class RelationalNodeUtil
extends java.lang.Object

Since:

4.2

Method Summary

static boolean	isUpdate(Command command) Returns whether the relational command is an update.
static boolean	shouldExecute(Command command, boolean simplifyCriteria) Decides whether a command needs to be executed.
static boolean	shouldExecute(Command command, boolean simplifyCriteria, boolean duringPlanning)

Methods inherited from class java.lang.Object

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

Method Detail

shouldExecute

public static boolean shouldExecute(Command command,
                                    boolean simplifyCriteria)
                             throws TeiidComponentException,
                                    ExpressionEvaluationException

Decides whether a command needs to be executed.
NOTE: This method has a side-effect. If the criteria of this command always evaluate to true, and the simplifyCriteria flag is true, then the command criteria are set to null.

Parameters:

command -

simplifyCriteria - whether to simplify the criteria of the command if they always evaluate to true

Returns:

true if this command should be executed by the connector; false otherwise.

Throws:

TeiidComponentException

ExpressionEvaluationException

Since:

4.2

shouldExecute

public static boolean shouldExecute(Command command,
                                    boolean simplifyCriteria,
                                    boolean duringPlanning)
                             throws TeiidComponentException,
                                    ExpressionEvaluationException

Throws:

TeiidComponentException

ExpressionEvaluationException

isUpdate

public static boolean isUpdate(Command command)

Returns whether the relational command is an update.

Parameters:

command -

Returns:

Since:

4.2