Class DiscountRequest

java.lang.Object
com.university.bookstore.chain.DiscountRequest
public class DiscountRequest extends Object
Request object for discount approval in the Chain of Responsibility pattern. Contains all information needed to process a discount request.
Since:
2024-09-15
Version:
3.0
Author:
Navid Mohaghegh

  • Constructor Details

    • DiscountRequest

      public DiscountRequest(Material material, double requestedDiscount, String customerId, String reason)
      Creates a new discount request.
      Parameters:
      material - the material for which discount is requested
      requestedDiscount - the requested discount rate (0.0 to 1.0)
      customerId - the customer requesting the discount
      reason - the reason for the discount request
      Throws:
      IllegalArgumentException - if parameters are invalid

  • Method Details

    • getMaterial

      public Material getMaterial()
      Gets the material for which discount is requested.
      Returns:
      the material

    • getRequestedDiscount

      public double getRequestedDiscount()
      Gets the requested discount rate.
      Returns:
      the discount rate (0.0 to 1.0)

    • getRequestedDiscountPercentage

      public double getRequestedDiscountPercentage()
      Gets the requested discount percentage.
      Returns:
      the discount percentage (0.0 to 100.0)

    • getCustomerId

      public String getCustomerId()
      Gets the customer ID.
      Returns:
      the customer ID

    • getReason

      public String getReason()
      Gets the reason for the discount request.
      Returns:
      the reason

    • isApproved

      public boolean isApproved()
      Checks if the request is approved.
      Returns:
      true if approved

    • setApproved

      public void setApproved(boolean approved)
      Sets the approval status.
      Parameters:
      approved - the approval status

    • getApprovedBy

      public String getApprovedBy()
      Gets who approved the request.
      Returns:
      the approver name

    • setApprovedBy

      public void setApprovedBy(String approvedBy)
      Sets who approved the request.
      Parameters:
      approvedBy - the approver name

    • getRejectionReason

      public String getRejectionReason()
      Gets the rejection reason.
      Returns:
      the rejection reason

    • setRejectionReason

      public void setRejectionReason(String rejectionReason)
      Sets the rejection reason.
      Parameters:
      rejectionReason - the rejection reason

    • getTimestamp

      public long getTimestamp()
      Gets the request timestamp.
      Returns:
      the timestamp in milliseconds

    • getDiscountedPrice

      public double getDiscountedPrice()
      Calculates the discounted price if approved.
      Returns:
      the discounted price

    • getSavingsAmount

      public double getSavingsAmount()
      Calculates the savings amount if approved.
      Returns:
      the savings amount

    • getSummary

      public String getSummary()
      Gets a summary of the discount request.
      Returns:
      the request summary

    • equals

      public boolean equals(Object obj)
      Overrides:
      equals in class Object

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • toString

      public String toString()
      Overrides:
      toString in class Object