Package org.jboss.test.cmp2.cmrstress.ejb

Source Code of org.jboss.test.cmp2.cmrstress.ejb.ParentBean

/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.test.cmp2.cmrstress.ejb;

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import javax.ejb.CreateException;
import javax.ejb.EJBException;
import javax.ejb.EntityBean;
import javax.ejb.EntityContext;
import javax.ejb.RemoveException;
import javax.naming.NamingException;

import org.jboss.logging.Logger;
import org.jboss.test.cmp2.cmrstress.interfaces.ChildLocal;
import org.jboss.test.cmp2.cmrstress.interfaces.ChildUtil;

/**
* This class implements the "parent" side of 1..many unidirectional relationship.
* It doesn't do anything particularly interesting besides provide the CMR getter
* and a method (@see #getPropertyMap()) that provides a transactional context for
* iterating over the CMR collection.
*
* This code is based upon the original test case provided by Andrew May.
*
* @version <tt>$Revision: 81036 $</tt>
* @author  <a href="mailto:steve@resolvesw.com">Steve Coy</a>.
*
* @ejb.bean name="Parent"
*           type="CMP"
*           cmp-version="2.x"
*           view-type="both"
*           jndi-name="cmrstress/Parent"
*           primkey-field="id"
*
* @ejb.pk class="java.lang.String"
*         generate="false"
*
* @ejb.persistence table-name="StressedParent"
*
* @@ejb.home generate="both"
* @@ejb.interface generate="both"
*
* @ejb.ejb-ref ejb-name="Child"
*              view-type="local"
* @ejb.transaction type="Supports"
*
* @jboss.persistence
*       create-table="true"
*       remove-table="true"
* @jboss.tuned-updates tune="true"
*/
public abstract class ParentBean implements EntityBean
{
   /**
    * CMP get method for Id attribute.
    * @ejb.interface-method view-type="remote"
    * @ejb.persistent-field
    * @jboss.column-name name="id"
    * @jboss.method-attributes read-only="true"
    */
   public abstract String getId();

   /**
    * CMP set method for Id attribute.
    * @ejb.interface-method view-type="remote"
    * @ejb.transaction type="Mandatory"
    */
   public abstract void setId(String id);

   /**
    * Get Children that apply to this Parent.
    *
    * @ejb.interface-method view-type="remote"
    * @ejb.relation name="Parent-Child"
    *               role-name="Parent-has-Children"
    *               cascade-delete="no"
    *               target-ejb="Child"
    *               target-role-name="Child-of-Parent"
    *               target-cascade-delete="yes"
    * @jboss.target-relation related-pk-field="id"
    *                        fk-column="parentid"
    * jboss.method-attributes read-only="true"
    */
   public abstract Set getChildren();

   /**
    * Set Children.
    * @ejb.interface-method view-type="remote"
    * @ejb.transaction type="Mandatory"
    */
   public abstract void setChildren(Set children);

   /**
    * Get a map of Child values.
    * This is the current axis of evil.
    *
    * @ejb.interface-method view-type="remote"
    * @ejb.transaction type="Required"
    * @jboss.method-attributes read-only="true"
    */
   public Map getPropertyMap()
   {
      Map result = new HashMap();
      Set children = getChildren();
      for (Iterator i = children.iterator(); i.hasNext(); )
      {
         ChildLocal c = (ChildLocal) i.next();
         result.put(c.getName(), c.getValue());
      }

      return result;
   }

   /**
    * Adds a child bean with the given attributes to this bean.
    * @ejb.interface-method view-type="remote"
    * @ejb.transaction type="RequiresNew"
    */
   public void addChild(int k, String field1, String field2) throws CreateException
   {
      msLog.debug("Adding child with pk: " + k);
      try
      {
         getChildren().add(ChildUtil.getLocalHome().create(Integer.toString(k), field1, field2));
      }
      catch (NamingException e)
      {
         throw new EJBException(e);
      }
   }
  
  
   /**
    * Create method for Entity.
    * @ejb.create-method view-type="remote"
    * @ejb.transaction type="RequiresNew"
    */
   public String ejbCreate(String id) throws javax.ejb.CreateException
   {
      msLog.debug("Created '" + id + "'");
      setId(id);
      return null;
   }

   public void ejbPostCreate(String id)
   {
   }
  
   /**
    * @see javax.ejb.EntityBean#ejbActivate()
    */
   public void ejbActivate()
   {
   }

   /**
    * @see javax.ejb.EntityBean#ejbLoad()
    */
   public void ejbLoad()
   {
   }

   /**
    * @see javax.ejb.EntityBean#ejbPassivate()
    */
   public void ejbPassivate()
   {
   }

   /**
    * @see javax.ejb.EntityBean#ejbRemove()
    */
   public void ejbRemove() throws RemoveException
   {
      msLog.debug("Removed");
   }

   /**
    * @see javax.ejb.EntityBean#ejbStore()
    */
   public void ejbStore()
   {
   }

   /**
    * @see javax.ejb.EntityBean#setEntityContext(javax.ejb.EntityContext)
    */
   public void setEntityContext(EntityContext arg0)
   {
   }

   /**
    * @see javax.ejb.EntityBean#unsetEntityContext()
    */
   public void unsetEntityContext()
   {
   }

   private static final Logger   msLog = Logger.getLogger(ParentBean.class);

}
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