Styjun

I have an XSD tag as:

<xs:complexType name="ifExpression">
 <xs:annotation>
 <xs:documentation>Boolean logic depending on expressions</xs:documentation>
 </xs:annotation>
 <xs:sequence>
 <xs:element name="variableName" type="xs:string"/>
 <xs:element name="operation">
 <xs:simpleType>
 <xs:restriction base="xs:string">
 <xs:enumeration value="eq"/>
 <xs:enumeration value="ne"/>
 <xs:enumeration value="gt"/>
 <xs:enumeration value="lt"/>
 <xs:enumeration value="ge"/>
 <xs:enumeration value="le"/>
 </xs:restriction>
 </xs:simpleType>
 </xs:element>
 <xs:element name="value" type="tet:valueType"/>
 </xs:sequence>
 </xs:complexType>

I have a binding file:

<jxb:bindings schemaLocation="Selector.xsd">
 <jxb:bindings node="//xsd:element[@name='ifExpression']/xsd:sequence/xsd:element[@name='operation']">
 <jxb:typesafeEnumClass name="Operation" />
 </jxb:bindings>
 </jxb:bindings>

I have this as my global bindings:

<jxb:globalBindings generateIsSetMethod="true" enableJavaNamingConventions="true" underscoreBinding="asCharInWord" typesafeEnumMemberName="generateName" typesafeEnumBase="xsd:string" fixedAttributeAsConstantProperty="true" />

Now when I run mvn clean install, I get the following error:

com.sun.istack.SAXParseException2: compiler was unable to honor this enum customization. It is attached to a wrong place, or its inconsistent with other bindings.
 at com.sun.tools.xjc.ErrorReceiver.error (ErrorReceiver.java:86)
 at com.sun.tools.xjc.reader.xmlschema.ErrorReporter.error (ErrorReporter.java:84)
 at com.sun.tools.xjc.reader.xmlschema.UnusedCustomizationChecker.check (UnusedCustomizationChecker.java:150)
.
.
.
com.sun.istack.SAXParseException2: (the above customization is attached to the following location in the schema)
 at com.sun.tools.xjc.ErrorReceiver.error (ErrorReceiver.java:86)
 at com.sun.tools.xjc.reader.xmlschema.ErrorReporter.error (ErrorReporter.java:84)
 at com.sun.tools.xjc.reader.xmlschema.UnusedCustomizationChecker.check (UnusedCustomizationChecker.java:155)
 at com.sun.tools.xjc.reader.xmlschema.UnusedCustomizationChecker.check (UnusedCustomizationChecker.java:128)
 at com.sun.tools.xjc.reader.xmlschema.UnusedCustomizationChecker.elementDecl (UnusedCustomizationChecker.java:233)

Just wanted to know am I doing something wrong in the path in the binding file? Or am I on the wrong path completely?