defxmlschema/chapter16¶

Example 16-7 Defining derived types¶

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:include schemaLocation="../chapter22/example2207.xsd" />
  <xs:complexType name="ShirtType">
    <xs:complexContent>
      <xs:extension base="ProductType">
        <xs:sequence>
          <xs:element name="size" type="xs:int" />
          <xs:element name="color" type="xs:string" />
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="HatType">
    <xs:complexContent>
      <xs:extension base="ProductType">
        <xs:sequence>
          <xs:element name="size" type="xs:int" />
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="UmbrellaType">
    <xs:complexContent>
      <xs:extension base="ProductType" />
    </xs:complexContent>
  </xs:complexType>
</xs:schema>

from dataclasses import dataclass, field
from typing import Optional
from tests.fixtures.defxmlschema.chapter22.example2207 import (
    ProductType,
)


@dataclass
class HatType(ProductType):
    """
    :ivar size:
    """
    size: Optional[int] = field(
        default=None,
        metadata=dict(
            name="size",
            type="Element",
            required=True
        )
    )


@dataclass
class ShirtType(ProductType):
    """
    :ivar size:
    :ivar color:
    """
    size: Optional[int] = field(
        default=None,
        metadata=dict(
            name="size",
            type="Element",
            required=True
        )
    )
    color: Optional[str] = field(
        default=None,
        metadata=dict(
            name="color",
            type="Element",
            required=True
        )
    )


@dataclass
class UmbrellaType(ProductType):
    pass

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