Can I Override Metadata using ORM.xml for JPA 2 in JBoss EAP?

Issue

I am trying to override entity metadata as follows:

1) I need to override basic field
2) The basic filed has the following annotation

@Column(name = "OCCUPIED")
@org.hibernate.annotations.Type(type="yes_no")       
private boolean occupied;

3)My goal is to remove @org.hibernate.annotations.Type(type="yes_no") from entity and define it in ORM.xml using XML configuration. I do not know how to correctly define org.hibernate.annotations.Type or org.hibernate.type.YesNoType in ORM.xml so the ORM.xml will be compliant
4) My ORM.xml has the following

<entity-mappings version="2.0" xmlns="http://java.sun.com/xml/ns/persistence/orm" 
                 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
                 xsi:schemaLocation="http://java.sun.com/xml/ns/persistence/orm http://java.sun.com/xml/ns/persistence/orm_2_0.xsd">
    <persistence-unit-metadata>
        <persistence-unit-defaults>
            <access>FIELD</access>
        </persistence-unit-defaults>
    </persistence-unit-metadata>
    <package>some.package</package>

    <entity class="someEntity"  >

       <table name="SOME_TABLE"/>
       <attributes>
         <id name="id">
           <column name="ID" />
           <generated-value strategy="SEQUENCE" generator="SomeTypeGenerator"/>
           <sequence-generator name="RoomTypeGenerator" sequence-name="seq_room_id" allocation-size="1" />
         </id>

         <basic name="name">
           <column name="NAME" />
         </basic>

         <basic name="occupied">
           <column name="OCCUPIED"/>
           <!-- 
           <org.hibernate.type.YesNoType>yes_no</org.hibernate.type.YesNoType>
           -->
           <org.hibernate.annotations.Type value="yes_no"/>        
         </basic>        
       </attributes>
    </entity>
</entity-mappings>