How to represent json array in XSD - arrays

Question

I have the below json , how can it be represented in XSD. It is a json tuple i could not find a valid construct in XSD to represent this type of json structure.
{
"type": "array",
"items": [
{
"type": "number"
},
{
"type": "string"
},
{
"type": "string",
"enum": ["Street", "Avenue", "Boulevard"]
},
{
"type": "string",
"enum": ["NW", "NE", "SW", "SE"]
}
]
}

Answer 1

It would help others if you would provide more context to your question. First, your example is from page 30 (print version) of the Understanding JSON Schema guide. Your JSON is a JSON schema (draft #4).
Because you're talking about schemas, I take your question as being about models. To be even clearer, I consider your question similar to one asked many years back: can one use UML to represent an XSD structure?
I actually do use XSD to describe JSON structures; we have an automatic conversion between XSD and JSON schemas (draft #4), since I use myself XSD as a data modeling language.
Your particular example has no natural XSD equivalent. By natural, I mean one that would make sense as XML as well, and which a "generic" XML-to-JSON transformation would yield an expected result.
If we take away simple things, such as a simple type modeled as a list:
<xsd:simpleType name="array">
<xsd:list itemType="xsd:float"/>
</xsd:simpleType>
which basically is the same as (except for the comma separator):
{
"type": "array",
"items": {
"type": "number"
}
}
then my answer is really about a "profile" that will be used by a conversion tool to take the semantics of a model represented in XSD (in other words, we're not hung up on XML documents here), into the same represented using JSON schema.
Our XSD-to-JSON schema profile uses a complex type to represent objects and arrays. When the "stereotype" applied to a complex type is "array", then the following model perfectly matches your JSON schema.
<xsd:complexType name="address">
<xsd:annotation>
<xsd:appinfo>
<xsd2json:type>array</xsd2json:type>
</xsd:appinfo>
</xsd:annotation>
<xsd:sequence>
<xsd:element name="StreetNumber" type="xsd:float"/>
<xsd:element name="StreetName" type="xsd:string"/>
<xsd:element name="StreetType">
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:enumeration value="Street"/>
<xsd:enumeration value="Avenue"/>
<xsd:enumeration value="Boulevard"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:element>
<xsd:element name="StreetDirection">
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:enumeration value="NW"/>
<xsd:enumeration value="NE"/>
<xsd:enumeration value="SW"/>
<xsd:enumeration value="SE"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:element>
</xsd:sequence>
</xsd:complexType>