album.ejb

J2EE的一个开发实例

package music.ejb.db;

import java.util.Collection;
import javax.ejb.*;
import weblogic.ejb.*;

import music.shared.*;

/**
 * @ejbgen:entity default-transaction="Required" prim-key-class="java.lang.Integer"
 *   ejb-name = "Album"
 *   data-source-name="jdbc/MusicDataSource"
 *   table-name = "album"
 *   abstract-schema-name = "Album"
 *
 * @ejbgen:jndi-name
 *   local="ejb/Album"
 *
 * @ejbgen:file-generation local-class = "True" local-class-name = "AlbumLocal" local-home = "True" local-home-name="AlbumLocalHome" remote-class = "False" remote-home = "False"  remote-home-name = "AlbumRemoteHome" remote-class-name = "AlbumRemote" value-class = "False" value-class-name = "AlbumValue" pk-class = "True"
 *
 * @ejbgen:relation role-name="Albums-have-Artist" fk-column="Artist_Id" cmr-field="artist" target-ejb="Artist" multiplicity="Many" name="Artist-Album"
 * @ejbgen:automatic-key-generation name="id" type="SQLServer2000"
 * @ejbgen:relation role-name="Album-has-Songs" cmr-field="songs" target-ejb="Song" multiplicity="One" name="Album-Song"
 * @ejbgen:finder ejb-ql="SELECT OBJECT(o) from Album as o where o.title=?1" generate-on="Local" signature="Collection findByTitleExactly(java.lang.String title)"
 */
abstract public class Album
  extends GenericEntityBean
  implements EntityBean
{

    /**
     * @ejbgen:cmp-field ordering-number="10" primkey-field="true" column="Id"
     * @ejbgen:local-method
     */
    public abstract Integer getId();

    /**
     */
    public abstract void setId(Integer arg);

    /**
     * @ejbgen:cmp-field column="Name"
     * @ejbgen:local-method
     */
    public abstract String getTitle();

    /**
     * @ejbgen:local-method
     */
    public abstract void setTitle(String arg);

    /**
     * @ejbgen:cmp-field column="Release"
     * @ejbgen:local-method
     */
    public abstract java.util.Date getRelease();

    /**
     * @ejbgen:local-method
     */
    public abstract void setRelease(java.util.Date arg);

    /**
     * @ejbgen:cmp-field column="Genre"
     * @ejbgen:local-method
     */
    public abstract String getGenre();

    /**
     * @ejbgen:local-method
     */
    public abstract void setGenre(String arg);

    public java.lang.Integer ejbCreate(java.lang.String Title, java.lang.String Genre, java.util.Date Release)
    {
      setTitle(Title);
      setGenre(Genre);
      setRelease(Release);

      return null; // FIXME return PK value 
    }

    public void ejbPostCreate(java.lang.String Title, java.lang.String Genre, java.util.Date Release)
    {
    }

    public java.lang.Integer ejbCreate(java.lang.String Title)
    {
      setTitle(Title);

      return null; // FIXME return PK value 
    }

    public void ejbPostCreate(java.lang.String Title)
    {
    }

    /**
     * @ejbgen:cmr-field
     * @ejbgen:local-method
     */
    public abstract ArtistLocal getArtist();

    /**
     * @ejbgen:local-method
     */
    public abstract void setArtist(ArtistLocal arg);

    /**
     * @ejbgen:cmr-field
     * @ejbgen:local-method
     */
    public abstract java.util.Collection getSongs();

    /**
     * @ejbgen:local-method
     */
    public abstract void setSongs(java.util.Collection arg);

    /**
     * @ejbgen:local-method
     */
    public AlbumVO copy()
    {
        return new AlbumVO(getId().intValue(), getTitle(), getGenre(), getRelease());
    }

    /**
     * @ejbgen:local-method
     */
    public Collection fullPath()
    {
        Collection c = getArtist().fullPath();
        c.add(copy());
        return c;
    }
}