CODEWITHSUNDEEP
xmlxsd
Alexis Leclerc
Alexis Leclerc

Reputation: 1313

XML Schema invalid content found with expected element

I have an XML schema fragment that goes like this:

<xsd:complexType name="CustomStreamHandlerConfig">
    <xsd:complexContent>
        <xsd:extension base="AbstractStreamHandlerConfig">
            <xsd:choice>
                <xsd:sequence>
                    <xsd:element name="class" type="xsd:string" />
                    <xsd:group ref="CustomParameters" />
                    <xsd:group ref="NextElements" minOccurs="0" maxOccurs="unbounded" />
                </xsd:sequence>
                <xsd:element name="config-file" type="xsd:anyURI" />
            </xsd:choice>
        </xsd:extension>
    </xsd:complexContent>
</xsd:complexType>

Basically, this schema allows an XML fragment to describe a CustomStreamHandlerConfig with some parameters (class, custom parameters, etc.) or with a configuration file URI.

The CustomParameters group allows a list of single-params elements in any number and a list of multiple-params in any number:

<xsd:group name="CustomParameters">
    <xsd:sequence>
        <xsd:element name="single-params" type="KeyValue" minOccurs="0" maxOccurs="unbounded" />
        <xsd:element name="multiple-params" type="KeyMultipleValues" minOccurs="0" maxOccurs="unbounded" />
    </xsd:sequence>
</xsd:group>

The KeyValue and KeyMultipleValues complex types go like this:

<xsd:complexType name="KeyValue">
    <xsd:simpleContent>
        <xsd:extension base="xsd:string">
            <xsd:attribute name="key" type="xsd:string" use="required" />
        </xsd:extension>
    </xsd:simpleContent>
</xsd:complexType>

<xsd:complexType name="KeyMultipleValues">
    <xsd:sequence>
        <xsd:element name="value" minOccurs="2" maxOccurs="unbounded" />
    </xsd:sequence>
    <xsd:attribute name="key" type="xsd:string" use="required" />
</xsd:complexType>

When I try to assemble an XML fragment that represents a CustomStreamHandlerConfig :

<custom-stream-retriever>
    <class>MyCustomStreamHandler</class>
    <single-params key="single-key">single-value</single-params>
    <mutiple-params key="multiple-key"> <!-- Invalid content -->
        <value>multiple-value</value>
        <value>multiple-value</value>
    </mutiple-params>
</custom-stream-retriever>

I get an cvc-complex-type.2.4.a: Invalid content was found starting with element 'mutiple-params'. error.

The thing is, when I inspect the list of expected elements, I find: One of '{..., "SomeNamespace":multiple-params, ...}' is expected.

I compared SomeNamespace (example namespace name) to the targetNamespace in my schema file, and they are both the same. I must also precise that the xsd:schema tag has elementFormDefault="qualified".

Why is the XML file refusing mutiple-params elements?

Upvotes: 0

Views: 1869

Answers (1)

Petru Gardea
Petru Gardea

Reputation: 21658

Not sure if this is a trick question, or a typo... your XSD describes a multiple-params, while your XML employs a mutiple-params - there's an l (lower case L) missing in the latter.

Upvotes: 2

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