问一个Entity部署的问题

ejb-jar.xml文件如下<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">
<ejb-jar>
    <enterprise-beans>
        <entity>
            <display-name>ItemMaster</display-name>
            <ejb-name>ItemMaster</ejb-name>
            <local-home>test1.ItemMasterHome</local-home>
            <local>test1.ItemMaster</local>
            <ejb-class>test1.ItemMasterBean</ejb-class>
            <persistence-type>Container</persistence-type>
            <prim-key-class>java.lang.String</prim-key-class>
            <reentrant>False</reentrant>
            <cmp-version>2.x</cmp-version>
            <abstract-schema-name>ItemMaster</abstract-schema-name>
            <cmp-field>
                <field-name>itemCode</field-name>
            </cmp-field>
            <cmp-field>
                <field-name>title</field-name>
            </cmp-field>
            <cmp-field>
                <field-name>rate</field-name>
            </cmp-field>
            <cmp-field>
                <field-name>itemDesc</field-name>
            </cmp-field>
            <cmp-field>
                <field-name>singer</field-name>
            </cmp-field>
            <cmp-field>
                <field-name>qtyOnHand</field-name>
            </cmp-field>
            <cmp-field>
                <field-name>type</field-name>
            </cmp-field>
            <cmp-field>
                <field-name>releaseDate</field-name>
            </cmp-field>
            <primkey-field>itemCode</primkey-field>
        </entity>
    </enterprise-beans>
    <assembly-descriptor>
        <container-transaction>
            <method>
                <ejb-name>ItemMaster</ejb-name>
                <method-name>*</method-name>
            </method>
            <trans-attribute>Required</trans-attribute>
        </container-transaction>
    </assembly-descriptor>
</ejb-jar>