schema allowing elements to appear in any order

[john mattucci]

Im trying to create a schema which allows for elements to appear in any order i.e. ade, eda, dea .. With the following it allows me to do that however I cannot control the # of times the element appears, even with
minOccurs="1" maxOccurs="1"

<?xml version="1.0" encoding="UTF-8"?>
<!--W3C Schema for chartdefs.xml file-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="a">
<xs:complexType>
<xs:attribute name="b" use="required">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:enumeration value="test"/>

</xs:restriction>
</xs:simpleType>
</xs:attribute>
</xs:complexType>
</xs:element>
<xs:element name="c">
<xs:complexType>
<xs:choice maxOccurs="unbounded">

<xs:element ref="a"/>
<xs:element name="d" type="xs:string" minOccurs="1" maxOccurs="1"/>
<xs:element name="e" type="xs:string" minOccurs="0"/>

</xs:choice>
</xs:complexType>
</xs:element>
</xs:schema>

I saw the following on java.sun but I cant seem to get it to work, which should solve the issue

<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">

<xsd:element name="root">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="foobarelements" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>

<xsd:element name="foo" type="xsd:anyType" substitutionGroup="foobarelements"/>
<xsd:element name="bar" type="xsd:anyType" substitutionGroup="foobarelements"/>
<xsd:element name="foobar" type="xsd:anyType" substitutionGroup="foobarelements"/>
<xsd:element name="foobarelements" type="xsd:anyType"/>

</xsd:schema>

[john mattucci]

I figured it out, thought i tried this but guess not


<xs:element name="a">
<xs:complexType>
<xs:all>
<xs:element name="b"/>
<xs:element name="c"/>
<xs:element name="d"/>
</xs:all>
</xs:complexType>
</xs:element>