How to return and array in a soap service?

and i want to return and array of buyers this is my xsd file, there is also the definition of buyer in the xsd file:

<xs:element name="getBuyerResponse">
    <xs:complexType>
        <xs:sequence>
            <xs:element name="buyer" type="tns:buyer" />
        </xs:sequence>
    </xs:complexType>
</xs:element>

<xs:element name="deleteBuyerRequest">
    <xs:complexType>
        <xs:sequence>
            <xs:element name="id" type="xs:int" />
        </xs:sequence>
    </xs:complexType>
</xs:element>

<xs:element name="deleteBuyerResponse">
    <xs:complexType>
        <xs:sequence>
            <xs:element name="response" type="xs:boolean" />
        </xs:sequence>
    </xs:complexType>
</xs:element>

<xs:complexType name="buyer">
    <xs:sequence>
        <xs:element name="id" type="xs:int" />
        <xs:element name="name" type="xs:string" />
        <xs:element name="lastname" type="xs:string" />
    </xs:sequence>
</xs:complexType>

i dont know how to write the request and response for all the buyers in the application.

I am using spring boot, java 7, maven, posgress,

Thanks