Class EmptyProductException

java.lang.Object

java.lang.Throwable

java.lang.Exception

com.goldenleaf.shop.exception.EmptyProductException

All Implemented Interfaces:

Serializable

public class EmptyProductException
extends Exception

Checked exception thrown when an attempt is made to perform an operation that requires a valid Product instance, but the provided product is null.

This exception is typically used in review-related logic where a review must be unambiguously linked to an existing, persisted product. Allowing null products would break referential integrity and lead to orphaned or meaningless reviews.

Common scenarios that trigger this exception:

• Calling Customer.makeReview(com.goldenleaf.shop.model.Product, java.lang.String, int) with null product
• Creating a Review entity with a null product reference
• Adding a review via service/admin tools without selecting a product
• Validation failure during batch import of reviews where the product is missing

This is a checked exception, forcing the caller to explicitly handle the missing product case. It represents an expected, recoverable validation error rather than a programming defect.

Since:

1.0

See Also:

• Review
• Customer.makeReview(com.goldenleaf.shop.model.Product, java.lang.String, int)
• Product
• Serialized Form

Constructor Summary

Constructors

Constructor	Description
EmptyProductException(String message)	Constructs a new empty-product exception with the specified detail message.
EmptyProductException(String message, Throwable cause)	Constructs a new empty-product exception with the specified detail message and cause.

Method Summary

Methods inherited from class java.lang.Throwable

addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

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

Constructor Details

EmptyProductException

public EmptyProductException(String message)

Constructs a new empty-product exception with the specified detail message.

Parameters:

message - the detail message (e.g. "Product cannot be null when creating a review") Saved for later retrieval by Throwable.getMessage()

EmptyProductException

public EmptyProductException(String message,
 Throwable cause)

Constructs a new empty-product exception with the specified detail message and cause.

Useful when wrapping a lower-level exception (e.g., entity not found, persistence error, or validation framework issue).

Parameters:

message - the detail message

cause - the root cause of this exception

Since:

1.2