*** This class is subject to change ***

com.sas.iquery.metadata.business.step
Class CompoundStep

java.lang.Object
  |
  +--com.sas.iquery.metadata.impl.IQModelImplUtilities
        |
        +--com.sas.iquery.metadata.business.impl.AbstractBase
              |
              +--com.sas.iquery.metadata.business.impl.AbstractModelItem
                    |
                    +--com.sas.iquery.metadata.business.step.CompoundStep

All Implemented Interfaces:

Base, BusinessModelResourceReferencer, ModelItem, PropertyChangeListenee, StepInterface, UsabilityInterface

public class CompoundStep

extends AbstractModelItem

implements StepInterface

Enables a user to group a set of steps together. A compound step brings the notion of parentheses within the list of steps. For example, (Blue Car Models with Sales GT 1M) and (Red Car Models with Sales GT 2M). CompoundSteps, like simple Steps are managed by the StepManager. Each CompoundStep can contains any number of Steps or CompoundSteps.

The following is a brief description of how AND/OR is applied by step

• OR condition for filter is: Filter( (Blue Car Models with Sales GT 1M) OR (Red Car Models with Sales GT2M) )
• OR condition for ranking is: {TopCount(Blue Car Models Top 25), BottomCount(Blue Car Models Bottom 25))
• OR condition for navigation is: Union(Blue Car Models.children, Red Car Models.children)
• OR condition for a mixed steps of ranking and filter is: Union(TopCount(Blue Car Models Top 25), Blue Car Model with Sales GT 1M)
• OR condition for a mixed steps of ranking and filter using NOT: Except(TopCount (Blue Car Models Top 25), Blue Car Model with Sales GT 1M)
• AND condition for filter is: Filter( (Blue Car Model with Sales GT 1M) AND (Red Car Models with Sales GT 2M) )
• AND condition for ranking is: {TopCount(BottomCount(Blue Car Model, 100), 25)}
• AND condition for navigation is: Intersection(Blue Car Model.children, Red Car Models. children)
• AND condition for navigation using NOT is: Intersection (Blue Car Model. children, Red Car Models. children)
• AND condition for mixed steps of ranking and filter is: TopCount(Filter(BlueCar Model with Sales GT 1M), 25)

See Also:

DataItem, StepInterface

Field Summary

static String	AND_CONDITION Definition of an AND condition in a compound step.
static String	EVENT_CONDITION_TYPE_CHANGED Indication that a condition defined in a step has changed
static String	EVENT_NEGATION_CHANGED Indication that a NOT condition in the MDX phraase has changed.
static String	EVENT_STEPS_CHANGED Indication that the list of steps defined in a compound step has changed
static String	OR_CONDITION Definition of an OR condition in a compound step.

Fields inherited from interface com.sas.iquery.metadata.business.Base

EVENT_OBJECT_DEFINITION_CHANGED

Fields inherited from interface com.sas.iquery.metadata.business.ModelItem

EVENT_OBJECT_PROPERTY_CHANGED

Constructor Summary

CompoundStep()
A constructor that initializes a CompoundStep

Method Summary

void	addStep(StepInterface step) This method adds a Step to the ordered list of Steps.
List	getSteps() This method returns an ordered list of Steps.
List	getStepsConditions() This method returns an ordered list of the condition (AND/OR) applied to steps.
boolean	isNegated() Tests if the expression defined in the compound step are negated or defined with a NOT
void	setConditionType(String stepCondition) This method defines whether AND/OR condition for step connection.
void	setNegated(boolean isNegated) Set that this compound step is negated

Methods inherited from class com.sas.iquery.metadata.business.impl.AbstractBase

accumulateDirectlyReferencedModelsInDownwardDefinition, getDirectlyReferencedBaseObjectsInDownwardDefinition, hasCycleInDownwardDefinition

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.sas.iquery.metadata.business.BusinessModelResourceReferencer

getResources

Methods inherited from interface java.beans.PropertyChangeListener

propertyChange

Methods inherited from interface com.sas.iquery.metadata.PropertyChangeListenee

addListener, getListeners, removeListener

Methods inherited from interface com.sas.iquery.metadata.business.UsabilityInterface

getReasonsUnusable, isUsableInQuery

Field Detail

EVENT_NEGATION_CHANGED

public static final String EVENT_NEGATION_CHANGED

Indication that a NOT condition in the MDX phraase has changed.

EVENT_STEPS_CHANGED

public static final String EVENT_STEPS_CHANGED

Indication that the list of steps defined in a compound step has changed

EVENT_CONDITION_TYPE_CHANGED

public static final String EVENT_CONDITION_TYPE_CHANGED

Indication that a condition defined in a step has changed

AND_CONDITION

public static final String AND_CONDITION

Definition of an AND condition in a compound step.

OR_CONDITION

public static final String OR_CONDITION

Definition of an OR condition in a compound step.

Constructor Detail

CompoundStep

public CompoundStep()

A constructor that initializes a CompoundStep

Method Detail

addStep

public void addStep(StepInterface step)

This method adds a Step to the ordered list of Steps.

Parameters:

step - The step to be added to the CompoundStep

isNegated

public boolean isNegated()

Tests if the expression defined in the compound step are negated or defined with a NOT

setNegated

public void setNegated(boolean isNegated)

Set that this compound step is negated

setConditionType

public void setConditionType(String stepCondition)

This method defines whether AND/OR condition for step connection. If an AND or OR must be applied, If neither is used, OR is assumed.

Parameters:

stepCondition - The stepCondition defines whether this is a AND/OR condition.

getSteps

public List getSteps()

This method returns an ordered list of Steps. A CompoundStep can contain CompoundSteps or Steps, but can't directly or indirectly contain itself.

Returns:

An ordered list of Steps

getStepsConditions

public List getStepsConditions()

This method returns an ordered list of the condition (AND/OR) applied to steps.

Returns:

An ordered list of step conditions

*** This class is subject to change ***