请教cmp的primkey为class的ejb

05-12-20 woodworm
petstore里的creditcard bean的主键为一个名为creditcard.java的class<prim-key-class>java.lang.Object</prim-key-class>,

第一、请问用xdoclet来写的时候如何指定prim-key-class。既然没有prim-field了,那么该用什么@ejb.xxxtag?

第二.同时还要请教,这里prim-key-class指定为Object,那么这个主键是Undefined Primary Key吗???

具体程序执行时,bean是如何知道creditcard.java是他的主键的?

CreditCardEJB如下

package com.sun.j2ee.blueprints.creditcard.ejb;

import javax.ejb.EntityContext;
import javax.ejb.RemoveException;
import javax.ejb.CreateException;

public abstract class CreditCardEJB implements javax.ejb.EntityBean {

  private EntityContext context = null;

  // getters and setters for CMP fields
  //====================================
  public abstract String getCardNumber();
  public abstract void setCardNumber(String cardNumber);

  public abstract String getCardType();
  public abstract void setCardType(String cardType);

  public abstract String getExpiryDate();
  public abstract void setExpiryDate(String expiryDate);


  // EJB create method
  //===================
  public Object ejbCreate(String cardNumber, String cardType,
                          String expiryDate) throws CreateException {
                            setCardNumber(cardNumber);
                            setCardType(cardType);
                            setExpiryDate(expiryDate);
                            return null;
  }

  public void ejbPostCreate(String cardNumber, String cardType,
                            String expiryDate) throws CreateException { }

  public Object ejbCreate(CreditCard creditCard) throws CreateException {
    setCardNumber(creditCard.getCardNumber());
    setCardType(creditCard.getCardType());
    setExpiryDate(creditCard.getExpiryDate());
    return null;
  }

  public void ejbPostCreate(CreditCard creditCard) throws CreateException { }

  public Object ejbCreate() throws CreateException {
    return null;
  }

  public void ejbPostCreate() throws CreateException { }

  public String getExpiryMonth() {
    String dateString = getExpiryDate();
    if (dateString != null) {
      // get the slash and return the text before it
      int slashStart = dateString.indexOf("/");
      if (slashStart != -1) return dateString.substring(0,slashStart);
    }
    return "01";
  }

  public String getExpiryYear() {
    String dateString = getExpiryDate();
    if (dateString != null) {
      // get the slash and return the text after it
      int slashStart = dateString.indexOf("/");
      if (slashStart != -1) return dateString.substring(slashStart +1, dateString.length());

    }
    return "2010";
  }

  public CreditCard getData() {
    CreditCard creditCard = new CreditCard();
    creditCard.setCardNumber(getCardNumber());
    creditCard.setCardType(getCardType());
    creditCard.setExpiryDate(getExpiryDate());
    return creditCard;
  }

  // Misc Method
  //=============
  public void setEntityContext(EntityContext c) {
    context = c;
  }
  public void unsetEntityContext() {
    context = null;
  }
  public void ejbRemove() throws RemoveException { }
  public void ejbActivate() { }
  public void ejbPassivate() { }
  public void ejbStore() { }
  public void ejbLoad() { }
}

<p>

ejb-jar.xml:

<?xml version="1.0" encoding="UTF-8"?>
<!--
 Copyright 2004-2005 Sun Microsystems, Inc. All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions
 are met:
 
 - Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
 
 - Redistribution in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in
   the documentation and/or other materials provided with the
   distribution.
 
 Neither the name of Sun Microsystems, Inc. or the names of
 contributors may be used to endorse or promote products derived
 from this software without specific prior written permission.
 
 This software is provided "AS IS," without a warranty of any
 kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
 WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
 EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES
 SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
 DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN
 OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR
 FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR
 PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF
 LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE,
 EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 
 You acknowledge that Software is not designed, licensed or intended
 for use in the design, construction, operation or maintenance of
 any nuclear facility.
-->
<ejb-jar version="2.1" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/ejb-jar_2_1.xsd">
  <display-name>CreditCardJAR</display-name>
  <enterprise-beans>
    <entity>
      <display-name>CreditCardEB</display-name>
      <ejb-name>CreditCardEJB</ejb-name>
      <local-home>com.sun.j2ee.blueprints.creditcard.ejb.CreditCardLocalHome</local-home>
      <local>com.sun.j2ee.blueprints.creditcard.ejb.CreditCardLocal</local>
      <ejb-class>com.sun.j2ee.blueprints.creditcard.ejb.CreditCardEJB</ejb-class>
      <persistence-type>Container</persistence-type>
      <prim-key-class>java.lang.Object</prim-key-class>
      <reentrant>false</reentrant>
      <cmp-version>2.x</cmp-version>
      <abstract-schema-name>CreditCard</abstract-schema-name>
      <cmp-field>
        <description>no description</description>
        <field-name>cardType</field-name>
      </cmp-field>
      <cmp-field>
        <description>no description</description>
        <field-name>cardNumber</field-name>
      </cmp-field>
      <cmp-field>
        <description>no description</description>
        <field-name>expiryDate</field-name>
      </cmp-field>
      <security-identity>
        <use-caller-identity/>
      </security-identity>
    </entity>
  </enterprise-beans>
  <assembly-descriptor>
    <method-permission>
      <unchecked />
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-name>*</method-name>
      </method>
    </method-permission>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>getData</method-name>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>remove</method-name>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>LocalHome</method-intf>
        <method-name>remove</method-name>
        <method-params>
          <method-param>java.lang.Object</method-param>
        </method-params>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>setExpiryDate</method-name>
        <method-params>
          <method-param>java.lang.String</method-param>
        </method-params>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>getCardType</method-name>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>LocalHome</method-intf>
        <method-name>findByPrimaryKey</method-name>
        <method-params>
          <method-param>java.lang.Object</method-param>
        </method-params>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>LocalHome</method-intf>
        <method-name>create</method-name>
        <method-params>
          <method-param>com.sun.j2ee.blueprints.creditcard.ejb.CreditCard</method-param>
        </method-params>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>LocalHome</method-intf>
        <method-name>create</method-name>
        <method-params>
          <method-param>java.lang.String</method-param>
          <method-param>java.lang.String</method-param>
          <method-param>java.lang.String</method-param>
        </method-params>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>getExpiryMonth</method-name>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>setCardType</method-name>
        <method-params>
          <method-param>java.lang.String</method-param>
        </method-params>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>getExpiryDate</method-name>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>setCardNumber</method-name>
        <method-params>
          <method-param>java.lang.String</method-param>
        </method-params>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>LocalHome</method-intf>
        <method-name>create</method-name>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>getCardNumber</method-name>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>getExpiryYear</method-name>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
  </assembly-descriptor>
</ejb-jar>

<p>

主键class:CreditCard.java:

<?xml version="1.0" encoding="UTF-8"?>
<!--
 Copyright 2004-2005 Sun Microsystems, Inc. All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions
 are met:
 
 - Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
 
 - Redistribution in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in
   the documentation and/or other materials provided with the
   distribution.
 
 Neither the name of Sun Microsystems, Inc. or the names of
 contributors may be used to endorse or promote products derived
 from this software without specific prior written permission.
 
 This software is provided "AS IS," without a warranty of any
 kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
 WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
 EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES
 SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
 DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN
 OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR
 FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR
 PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF
 LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE,
 EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 
 You acknowledge that Software is not designed, licensed or intended
 for use in the design, construction, operation or maintenance of
 any nuclear facility.
-->
<ejb-jar version="2.1" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/ejb-jar_2_1.xsd">
  <display-name>CreditCardJAR</display-name>
  <enterprise-beans>
    <entity>
      <display-name>CreditCardEB</display-name>
      <ejb-name>CreditCardEJB</ejb-name>
      <local-home>com.sun.j2ee.blueprints.creditcard.ejb.CreditCardLocalHome</local-home>
      <local>com.sun.j2ee.blueprints.creditcard.ejb.CreditCardLocal</local>
      <ejb-class>com.sun.j2ee.blueprints.creditcard.ejb.CreditCardEJB</ejb-class>
      <persistence-type>Container</persistence-type>
      <prim-key-class>java.lang.Object</prim-key-class>
      <reentrant>false</reentrant>
      <cmp-version>2.x</cmp-version>
      <abstract-schema-name>CreditCard</abstract-schema-name>
      <cmp-field>
        <description>no description</description>
        <field-name>cardType</field-name>
      </cmp-field>
      <cmp-field>
        <description>no description</description>
        <field-name>cardNumber</field-name>
      </cmp-field>
      <cmp-field>
        <description>no description</description>
        <field-name>expiryDate</field-name>
      </cmp-field>
      <security-identity>
        <use-caller-identity/>
      </security-identity>
    </entity>
  </enterprise-beans>
  <assembly-descriptor>
    <method-permission>
      <unchecked />
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-name>*</method-name>
      </method>
    </method-permission>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>getData</method-name>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>remove</method-name>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>LocalHome</method-intf>
        <method-name>remove</method-name>
        <method-params>
          <method-param>java.lang.Object</method-param>
        </method-params>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>setExpiryDate</method-name>
        <method-params>
          <method-param>java.lang.String</method-param>
        </method-params>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>getCardType</method-name>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>LocalHome</method-intf>
        <method-name>findByPrimaryKey</method-name>
        <method-params>
          <method-param>java.lang.Object</method-param>
        </method-params>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>LocalHome</method-intf>
        <method-name>create</method-name>
        <method-params>
          <method-param>com.sun.j2ee.blueprints.creditcard.ejb.CreditCard</method-param>
        </method-params>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>LocalHome</method-intf>
        <method-name>create</method-name>
        <method-params>
          <method-param>java.lang.String</method-param>
          <method-param>java.lang.String</method-param>
          <method-param>java.lang.String</method-param>
        </method-params>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>getExpiryMonth</method-name>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>setCardType</method-name>
        <method-params>
          <method-param>java.lang.String</method-param>
        </method-params>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>getExpiryDate</method-name>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>setCardNumber</method-name>
        <method-params>
          <method-param>java.lang.String</method-param>
        </method-params>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>LocalHome</method-intf>
        <method-name>create</method-name>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>getCardNumber</method-name>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
    <container-transaction>
      <method>
        <ejb-name>CreditCardEJB</ejb-name>
        <method-intf>Local</method-intf>
        <method-name>getExpiryYear</method-name>
      </method>
      <trans-attribute>Required</trans-attribute>
    </container-transaction>
  </assembly-descriptor>
</ejb-jar>

<p>

一剑封喉
2005-12-20 17:04
长成马了

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