在EJB-JAR.XML中部署
如
<?xml version="1.0"?>
<!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>
<ejb-name>CMPAccout</ejb-name>
<home>com.tongking.AccountHome</home>
<remote>com.tongking.Account</remote>
<ejb-class>com.tongking.AccountBean</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>AccountBean</abstract-schema-name>
<cmp-field>
<field-name>accountId</field-name>
</cmp-field>
<cmp-field>
<field-name>balance</field-name>
</cmp-field>
<cmp-field>
<field-name>accountType</field-name>
</cmp-field>
<primkey-field>accountId</primkey-field>
<query>
<query-method>
<method-name>findBigAccounts</method-name>
<method-params>
<method-param>double</method-param>
</method-params>
</query-method>
<ejb-ql>
<![CDATA[SELECT OBJECT FROM AccountBean AS a WHERE a.balance > ?1]]>
</ejb-ql>
</query>
<query>
<query-method>
<method-name>findNullAccounts</method-name>
<method-params></method-params>
</query-method>
<ejb-ql>
<![CDATA[SELECT OBJECT FROM AccountBean AS a WHERE a.accountType IS NULL]]>
</ejb-ql>
</query>
</entity>
</enterprise-beans>
<assembly-descriptor>
<container-transaction>
<method>
<ejb-name>CMPAccout</ejb-name>
<method-name>*</method-name>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
</assembly-descriptor>
</ejb-jar>
可以看明白吧!