atg.projects.store.scenario
Class MerchandiseTotalCondition

java.lang.Object
  atg.process.filter.Filter
      atg.process.filter.ExpressionFilter
          atg.projects.store.scenario.MerchandiseTotalCondition

public class MerchandiseTotalCondition
extends atg.process.filter.ExpressionFilter

This expression filter (Scenario Condition) allows us to write scenarios that say "Order contains [less than] [$24.00] merchandise where items [in category ] [x]. This is specifically to handle the case where a merchant wishes to give a free gift when a user purchases at least $24.50 of items from a specific category.

Field Summary

static java.lang.String	CLASS_VERSION Class version string.
static int	EQUAL_TO Equal constant.
static int	GREATER_THAN Greater than constant.
static int	LESS_THAN Less than constant.
static java.lang.String	MESSAGE_ORDER_PROPERTY The property of the message that points to the order.

Fields inherited from class atg.process.filter.Filter

FALSE, TRUE

Constructor Summary

MerchandiseTotalCondition()

Method Summary

void	configure(java.lang.String pOperator, java.lang.Object pConfiguration) Configures this ExpressionFilter using the given configuration object.
protected atg.process.filter.Filter	evaluate(atg.process.ProcessExecutionContext pContext) This filter takes the amount entered by the business user an the pmdl rule.
protected boolean	evaluatePMDLRule(atg.process.ProcessExecutionContext pContext, atg.commerce.order.Order pOrder, atg.commerce.order.CommerceItem pItem) Evaluate the rule put before us for the commerce item in question.
void	initialize(java.lang.String pOperator, atg.process.expression.Expression[] pOperands) Initializes this ExpressionFilter, given its operator and operands.

Methods inherited from class atg.process.filter.ExpressionFilter

equals, getOperands, getOperator, operandsEquals, setOperands, setOperator, toString

Methods inherited from class atg.process.filter.Filter

andFilters, andFilters, assumeFalse, assumeTrue, createProcessInstanceQuery, createSubjectQuery, getResourceBundle, getSubjectType, hashCode, implies, isCacheable, negate, orFilters, orFilters, setCacheable, test

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

CLASS_VERSION

public static java.lang.String CLASS_VERSION

Class version string.

LESS_THAN

public static final int LESS_THAN

Less than constant.

See Also:

Constant Field Values

EQUAL_TO

public static final int EQUAL_TO

Equal constant.

See Also:

Constant Field Values

GREATER_THAN

public static final int GREATER_THAN

Greater than constant.

See Also:

Constant Field Values

MESSAGE_ORDER_PROPERTY

public static final java.lang.String MESSAGE_ORDER_PROPERTY

The property of the message that points to the order.

See Also:

Constant Field Values

Constructor Detail

MerchandiseTotalCondition

public MerchandiseTotalCondition()

Method Detail

configure

public void configure(java.lang.String pOperator,
                      java.lang.Object pConfiguration)
               throws atg.process.ProcessException

Configures this ExpressionFilter using the given configuration object. The configuration object is typically a global Nucleus component which is configured with the information necessary for the filter's operation.

Overrides:

configure in class atg.process.filter.ExpressionFilter

Parameters:

pOperator - - operator

pConfiguration - - configuration

Throws:

atg.process.ProcessException - if the filter could not be configured - for example, because some of the required properties are missing from the configuration

initialize

public void initialize(java.lang.String pOperator,
                       atg.process.expression.Expression[] pOperands)
                throws atg.process.ProcessException

Initializes this ExpressionFilter, given its operator and operands. The default implementation of this method simply sets the operator and operands properties.

This implementation, in addition, verifies that there is exactly one operand, and that its value is a constant. The constant value of the operand is the PMDL string that defines this filter.

Overrides:

initialize in class atg.process.filter.ExpressionFilter

Parameters:

pOperator - - operator

pOperands - - operands

Throws:

atg.process.ProcessException - if the operands argument is invalid

evaluate

protected atg.process.filter.Filter evaluate(atg.process.ProcessExecutionContext pContext)
                                      throws atg.process.ProcessException

This filter takes the amount entered by the business user an the pmdl rule. It then finds all the commerce items in the order that match the given pmdl rule. Of those that match this filter totals up their ItemPriceInfo.amount fields and applies the logic supplied by the business user to determine if the total amount of all the items matches the price criteria.

Evaluates this filter in the given scenario execution context. The context may not yet contain all of the information necessary to evaluate the filter - specifically, it may be missing the particular scenario instance and/or profile that the scenario is being executed on. If that is the case, the filter is evaluated as much as possible, and the simplified filter is returned.

The possible return values of this method are as follows:

• Filter.TRUE - if the filter can be fully evaluated, and is satisfied in the given context
• Filter.FALSE - if the filter can be fully evaluated, and is not satisfied in the given context
• this or another, simplified, Filter - if the filter cannot be fully evaluated because of the missing information in the context
• null - if the filter cannot be evaluated because of a null expression encountered during evaluation (e.g., filter refers to a profile property which evaluates to null)

Specified by:

evaluate in class atg.process.filter.Filter

Parameters:

pContext - - process execution context

Returns:

The Filter object or null after evaluation of the context

Throws:

atg.process.ProcessException - if there is a problem evaluating the filter (other than information missing from the context)

evaluatePMDLRule

protected boolean evaluatePMDLRule(atg.process.ProcessExecutionContext pContext,
                                   atg.commerce.order.Order pOrder,
                                   atg.commerce.order.CommerceItem pItem)
                            throws atg.process.ProcessException

Evaluate the rule put before us for the commerce item in question.

Parameters:

pContext - - process execution context

pOrder - - order

pItem - - the commerce item to evaluate the rule for

Returns:

rule

Throws:

atg.process.ProcessException - if process error occurs