Record Class ItemOrder

java.lang.Object
java.lang.Record
edu.uw.tcss.model.ItemOrder
Record Components:
item - the Item being ordered
quantity - the quantity of the item being ordered
public record ItemOrder(Item item, int quantity) extends Record
Represents a purchase order for an item - an immutable pairing of an Item with a desired quantity.

This is a pure data holder implemented as a Java record. It does not contain display logic or business logic - it simply holds the item and quantity. The GUI or other code is responsible for formatting this data for display.

Being a record, this class automatically provides: - Constructor with all fields - Accessor methods: item() and quantity() - equals() and hashCode() based on all fields - toString() in debug format: "ItemOrder[item=..., quantity=...]" - Immutability (all fields are final)

Version:
Winter 2026
Author:
Charles Bryan

  • Constructor Summary

    Constructors
    Constructor
    Description
    ItemOrder(Item item, int quantity)
    Compact constructor that validates the item and quantity.

  • Method Summary

    Modifier and Type
    Method
    Description
    final boolean
    equals(Object o)
    Indicates whether some other object is "equal to" this one.
    final int
    hashCode()
    Returns a hash code value for this object.
    Item
    item()
    Returns the value of the item record component.
    int
    quantity()
    Returns the value of the quantity record component.
    final String
    toString()
    Returns a string representation of this record class.

    Methods inherited from class Object

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

  • Constructor Details

  • Method Details

    • toString

      public final String toString()
      Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.
      Specified by:
      toString in class Record
      Returns:
      a string representation of this object

    • hashCode

      public final int hashCode()
      Returns a hash code value for this object. The value is derived from the hash code of each of the record components.
      Specified by:
      hashCode in class Record
      Returns:
      a hash code value for this object

    • equals

      public final boolean equals(Object o)
      Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. Reference components are compared with Objects::equals(Object,Object); primitive components are compared with the compare method from their corresponding wrapper classes.
      Specified by:
      equals in class Record
      Parameters:
      o - the object with which to compare
      Returns:
      true if this object is the same as the o argument; false otherwise.

    • item

      public Item item()
      Returns the value of the item record component.
      Returns:
      the value of the item record component

    • quantity

      public int quantity()
      Returns the value of the quantity record component.
      Returns:
      the value of the quantity record component