import random

class Query:
    """
    Query represents the request  from a user for information

    @type request_id: int
    """
    #: @type: int probably unique identifier of this for long time
    request_id = None
    #: @type: string X{product_id} requested
    product_id = None

    def __init__(self):
        self.request_id = random.randint(100000,999999)
        self.product_id = None

    def __eq__(self, other):
        """
        Equality based on product_id only
        @type other: Query
        @rtype: boolean
        @returns: True if both queries are for same product_id
        regardless of request_id's. False otherwise.
        """
        if other == None:
            return False
        return self.product_id == other.product_id

    def __str__(self):
        return 'request_id:%s\nproduct_id:%s\n' % (str(self.request_id),
                                                   str(self.product_id))

#class ProductIdQuery:
#    """
#    ProductQuery is a L{Query} specifically on a single product_id
#    """
#    #: X{product_id} requested (long)
#    product_id = None