Podcast
Questions and Answers
What is the primary function of a pipe with an order of 110 in the pipeline?
What is the primary function of a pipe with an order of 110 in the pipeline?
- To ignore the pipeline's execution order
- To replace the existing CreateGetCartLineResult pipe
- To execute after the CreateGetCartLineResult pipe (correct)
- To execute before the CreateGetCartLineResult pipe
What is necessary for a custom pipe to override an existing pipe in a pipeline?
What is necessary for a custom pipe to override an existing pipe in a pipeline?
- It must have a higher order number than the existing pipe
- It must implement a different interface
- It must have the same name as the existing pipe (correct)
- It must be executed before the existing pipe
How can a pipe stop the execution of a pipeline?
How can a pipe stop the execution of a pipeline?
- By executing a stop command
- By setting an error code or an exit flag (correct)
- By returning a null result object
- By reducing its order number
What will happen if a pipe sets the exit flag during execution?
What will happen if a pipe sets the exit flag during execution?
In the context of a custom pipe, what does returning a new CreateGetCartLineResultResult signify?
In the context of a custom pipe, what does returning a new CreateGetCartLineResultResult signify?
Which of the following statements about pipe ordering is true?
Which of the following statements about pipe ordering is true?
What role does the Execute method play in a pipe implementation?
What role does the Execute method play in a pipe implementation?
If a custom pipe has the same order as a standard pipe, what happens?
If a custom pipe has the same order as a standard pipe, what happens?
What is the primary purpose of the CalculatePrice class?
What is the primary purpose of the CalculatePrice class?
What does the Order property in the CalculatePrice class signify?
What does the Order property in the CalculatePrice class signify?
Which method is responsible for adding product price DTOs to the result?
Which method is responsible for adding product price DTOs to the result?
What does the translationLocalizer in the CalculatePrice class help to handle?
What does the translationLocalizer in the CalculatePrice class help to handle?
What is the expected behavior when parameter.PricingServiceParameters is empty?
What is the expected behavior when parameter.PricingServiceParameters is empty?
What is the primary function of a pipe within a pipeline?
What is the primary function of a pipe within a pipeline?
How should the order of pipes be configured in a pipeline?
How should the order of pipes be configured in a pipeline?
What happens if a pipe does not return the result object after its execution?
What happens if a pipe does not return the result object after its execution?
Which aspect of the IPipe interface specifies the execution outcome of a pipe?
Which aspect of the IPipe interface specifies the execution outcome of a pipe?
If you need to modify the data created by a pipe, what should you do?
If you need to modify the data created by a pipe, what should you do?
What is the base order assigned to the first pipe in any pipeline?
What is the base order assigned to the first pipe in any pipeline?
Which of the following statements is true regarding the IPipe interface in the context of pipelines?
Which of the following statements is true regarding the IPipe interface in the context of pipelines?
Flashcards
Pipe Order (110)
Pipe Order (110)
A pipe with order 110 executes after the CreateGetCartLineResult pipe in the pipeline.
Custom Pipe Override
Custom Pipe Override
A custom pipe overrides an existing pipe if it has the same name.
Pipeline Termination
Pipeline Termination
A pipe can stop the entire pipeline by setting an error, or exit flag.
Exit Flag
Exit Flag
When a pipe sets the exit flag, the pipeline immediately ends.
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Successful Pipe Execution
Successful Pipe Execution
Returning CreateGetCartLineResultResult means a custom pipe completed its task successfully.
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Pipe Ordering
Pipe Ordering
Lower order numbers in a pipeline indicate higher execution precedence.
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Execute Method
Execute Method
The Execute method contains the logic for a pipe's execution.
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Custom Pipe Replacement
Custom Pipe Replacement
A custom pipe with the same order as a standard pipe replaces the standard pipe.
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CalculatePrice Class
CalculatePrice Class
This class handles pricing calculations and storing results.
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Order Property (CalculatePrice)
Order Property (CalculatePrice)
The Order property determines the pipe's priority in the pipeline.
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Adding Price DTOs
Adding Price DTOs
The Execute method is responsible for adding product price DTOs to the result.
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Localization (CalculatePrice)
Localization (CalculatePrice)
The translationLocalizer helps handle pricing result localization in CalculatePrice.
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Empty Parameters
Empty Parameters
With empty parameter.PricingServiceParameters, the method returns an empty result.
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Pipe Function
Pipe Function
A pipe completes a specific task in a pipeline.
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Pipe Order Configuration
Pipe Order Configuration
Configure pipe order by incrementing the order number for each pipe.
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IExtension Interface
IExtension Interface
All pipes must implement the IExtension interface.
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Missing Result Object
Missing Result Object
If a pipe doesn't return the result object after execution, the pipeline might stop.
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IPipe Interface and Outcomes
IPipe Interface and Outcomes
The Execute method of the IPipe interface determines the execution outcome of a pipe.
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Modifying Existing Pipe Data
Modifying Existing Pipe Data
To modify data created by a pipe, add a new pipe after the one you want to change to process and modify output data
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Base Pipe Order
Base Pipe Order
The first pipe in a pipeline is assigned order 100.
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Pipe Parameter/Result Type
Pipe Parameter/Result Type
Pipes must specify the same object type for both parameter and result.
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Pipelines
- Pipelines are composed of individual units called Pipes.
- Pipes are responsible for completing a single task within a pipeline.
- Each pipe implements the IPipe interface.
- IPipe defines the parameter and result objects used by the pipe.
- Pipes execute in a defined order.
- Each pipe has an Order property in code.
- Pipes implement the IPipe interface with consistent parameter and result types.
- Pipes can be inserted into a pipeline in any order.
- To override an existing pipe, create a custom pipe with the same name and order.
Pipe Execution
- A pipe can stop the pipeline execution by setting the result object's error code or exit flag.
Example Pipeline: Product Pricing
- The CalculatePrice pipe retrieves product prices using a pricing service.
- The CalculatePrice pipe uses the IPricingServiceFactory to get the appropriate pricing service.
- The CalculatePrice pipe calculates the price for each pricing service parameter.
- The CalculatePrice pipe adds the calculated prices to the result object's ProductPriceDtos list.
Pipe Order Visualizer
- Configured Commerce provides a Visual Studio extension to visually show the order of pipes in a pipeline.
Using Pipelines in Code
- Inject a pipeline instance into the class constructor, like other objects.
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