// license-header java merge-point
//
// Attention: Generated code! Do not modify by hand!
// Generated by: SessionDaoBase.vsl in andromda-ejb3-cartridge.
//
package com.agcs.amd2.model.util;

/**
 * <p>
 * Base EJB3 DAO Class: is able to create, update, remove, load, and find
 * objects of type <code>com.agcs.amd2.model.util.Information</code>.
 * </p>
 *
 * @see com.agcs.amd2.model.util.InformationDao
 */

public abstract class InformationDaoBase
    implements com.agcs.amd2.model.util.InformationDao
{
    // ------ Session Context Injection ------
    
    @javax.annotation.Resource
    protected javax.ejb.SessionContext context;

    // ------ Persistence Context Injection --------

    /**
     * Inject persistence context amanda2     
     */
    
    
    @org.jboss.seam.annotations.In("entityManager")
		private javax.persistence.EntityManager emanager;
        public javax.persistence.EntityManager getEntityManager ()
            {
            if( emanager==null) // Not injected
            {
                return com.agcs.amd2.model.LocalEntityManager.getCurrentEntityManager();
            }
            else
                return emanager;
            }

    /**
     * Injext Hibernate Session
     */
    
    
    private org.hibernate.Session hibernateSession;
      public org.hibernate.Session getHibernateSession ()
        {
        if( hibernateSession==null) // Not injected
            return (org.hibernate.Session) getEntityManager().getDelegate ();
        else
            return hibernateSession;
        }
    
    /**
     * @see com.agcs.amd2.model.util.InformationDao#load(int,)
     */
    public Object load(final int transform, final java.lang.Long id)
        throws com.agcs.amd2.model.util.DaoException
    {
        if (id == null)
        {
            throw new IllegalArgumentException(
                "Information.load - 'id' can not be null");
        }
        try
        {
            final Object entity = (com.agcs.amd2.model.util.Information)getEntityManager().find(com.agcs.amd2.model.util.Information.class, id);
            return transformEntity(transform, (com.agcs.amd2.model.util.Information)entity);
        }
        catch (Exception ex)
        {
            throw new com.agcs.amd2.model.util.DaoException(ex);
        }
    }

    /**
     * @see com.agcs.amd2.model.util.InformationDao#load()
     */
    public com.agcs.amd2.model.util.Information load( final java.lang.Long id)
        throws com.agcs.amd2.model.util.DaoException
    {
        return (com.agcs.amd2.model.util.Information)this.load(TRANSFORM_NONE, id);
    }

    /**
     * @see com.agcs.amd2.model.util.InformationDao#loadAll()
     */
    @SuppressWarnings({"unchecked"})
    public java.util.Collection<com.agcs.amd2.model.util.Information> loadAll()
        throws com.agcs.amd2.model.util.DaoException
    {
        return (java.util.Collection<com.agcs.amd2.model.util.Information>)this.loadAll(TRANSFORM_NONE);
    }

    /**
     * @see com.agcs.amd2.model.util.InformationDao#loadAll(int)
     */
    public java.util.Collection loadAll(final int transform)
        throws com.agcs.amd2.model.util.DaoException
    {
        try
        {
            javax.persistence.Query query = getEntityManager().createNamedQuery("Information.findAll");
            java.util.List<com.agcs.amd2.model.util.Information> results = query.getResultList();
            this.transformEntities(transform, results);
            return results;
        }
        catch (Exception ex)
        {
            throw new com.agcs.amd2.model.util.DaoException(ex);
        }
    }

    /**
     * @see com.agcs.amd2.model.util.InformationDao#create(com.agcs.amd2.model.util.Information)
     */
    public com.agcs.amd2.model.util.Information create(com.agcs.amd2.model.util.Information information)
        throws com.agcs.amd2.model.util.DaoException
    {
        return (com.agcs.amd2.model.util.Information)this.create(TRANSFORM_NONE, information);
    }

    /**
     * @see com.agcs.amd2.model.util.InformationDao#create(int transform, com.agcs.amd2.model.util.Information)
     */
    public Object create(final int transform, final com.agcs.amd2.model.util.Information information)
        throws com.agcs.amd2.model.util.DaoException
    {
        if (information == null)
        {
            throw new IllegalArgumentException(
                "Information.create - 'information' can not be null");
        }
        
        try
        {
            getEntityManager().persist(information);
            getEntityManager().flush();
            return this.transformEntity(transform, information);
        }
        catch (Exception ex)
        {
            throw new com.agcs.amd2.model.util.DaoException(ex);
        }
    }

    /**
     * @see com.agcs.amd2.model.util.InformationDao#create(java.util.Collection<com.agcs.amd2.model.util.Information>)
     */
    @SuppressWarnings({"unchecked"})
    public java.util.Collection<com.agcs.amd2.model.util.Information> create(final java.util.Collection<com.agcs.amd2.model.util.Information> entities)
        throws com.agcs.amd2.model.util.DaoException
    {
        return create(TRANSFORM_NONE, entities);
    }

    /**
     * @see com.agcs.amd2.model.util.InformationDao#create(int, java.util.Collection<com.agcs.amd2.model.util.Information>)
     */
    @SuppressWarnings({"unchecked"})
    public java.util.Collection create(final int transform, final java.util.Collection<com.agcs.amd2.model.util.Information> entities)
        throws com.agcs.amd2.model.util.DaoException
    {
        if (entities == null)
        {
            throw new IllegalArgumentException(
                "Information.create - 'entities' can not be null");
        }
        java.util.Collection results = new java.util.ArrayList();
        try
        {
	        for (final java.util.Iterator entityIterator = entities.iterator(); entityIterator.hasNext();)
	        {
	            results.add(create(transform, (com.agcs.amd2.model.util.Information)entityIterator.next()));
	        }
	    }
	    catch (Exception ex)
	    {
	        throw new com.agcs.amd2.model.util.DaoException(ex);
	    }
        return results;
    }

    /**
     * @see com.agcs.amd2.model.util.InformationDao#create(int, java.lang.String)
     */
    public com.agcs.amd2.model.util.Information create(
        int version,
        java.lang.String comment)
        throws com.agcs.amd2.model.util.DaoException
    {
        return (com.agcs.amd2.model.util.Information)this.create(TRANSFORM_NONE, version, comment);
    }

    /**
     * @see com.agcs.amd2.model.util.InformationDao#create(int, int, java.lang.String)
     */
    public Object create(
        final int transform,
        int version,
        java.lang.String comment)
        throws com.agcs.amd2.model.util.DaoException
    {
        com.agcs.amd2.model.util.Information entity = new com.agcs.amd2.model.util.Information();
        entity.setVersion(version);
        entity.setComment(comment);
        return this.create(transform, entity);
    }

    /**
     * @see com.agcs.amd2.model.util.InformationDao#update(com.agcs.amd2.model.util.Information)
     */
    public void update(com.agcs.amd2.model.util.Information information)
        throws com.agcs.amd2.model.util.DaoException
    {
        if (information == null)
        {
            throw new IllegalArgumentException(
                "Information.update - 'information' can not be null");
        }
        try
        {
            getEntityManager().merge(information);
            getEntityManager().flush();
        }
        catch (Exception ex)
        {
            throw new com.agcs.amd2.model.util.DaoException(ex);
        }
    }

    /**
     * @see com.agcs.amd2.model.util.InformationDao#update(java.util.Collection<com.agcs.amd2.model.util.Information>)
     */
    public void update(final java.util.Collection<com.agcs.amd2.model.util.Information> entities)
        throws com.agcs.amd2.model.util.DaoException
    {
        if (entities == null)
        {
            throw new IllegalArgumentException(
                "Information.update - 'entities' can not be null");
        }
        try
        {
		    for (final java.util.Iterator entityIterator = entities.iterator(); entityIterator.hasNext();)
		    {
		        update((com.agcs.amd2.model.util.Information)entityIterator.next());
		    }
		}
		catch (Exception ex)
		{
		    throw new com.agcs.amd2.model.util.DaoException(ex);
		}
    }

    /**
     * @see com.agcs.amd2.model.util.InformationDao#remove(com.agcs.amd2.model.util.Information)
     */
    public void remove(com.agcs.amd2.model.util.Information information)
        throws com.agcs.amd2.model.util.DaoException
    {
        if (information == null)
        {
            throw new IllegalArgumentException(
                "Information.remove - 'information' can not be null");
        }
        try
        {
            getEntityManager().remove(information);
            getEntityManager().flush();
        }
        catch (Exception ex)
        {
            throw new com.agcs.amd2.model.util.DaoException(ex);
        }
    }

    /**
     * @see com.agcs.amd2.model.util.InformationDao#remove(java.lang.Long)
     */
    public void remove(java.lang.Long id)
        throws com.agcs.amd2.model.util.DaoException
    {
        if (id == null)
        {
            throw new IllegalArgumentException(
                "Information.remove - 'id' can not be null");
        }
        try
        {
	        final com.agcs.amd2.model.util.Information entity = this.load(id);
	        if (entity != null)
	        {
	            this.remove(entity);
	        }
	    }
	    catch (Exception ex)
	    {
	        throw new com.agcs.amd2.model.util.DaoException(ex);
	    }
    }

    /**
     * @see com.agcs.amd2.model.util.InformationDao#remove(java.util.Collection<com.agcs.amd2.model.util.Information>)
     */
    public void remove(java.util.Collection<com.agcs.amd2.model.util.Information> entities)
        throws com.agcs.amd2.model.util.DaoException
    {
        if (entities == null)
        {
            throw new IllegalArgumentException(
                "Information.remove - 'entities' can not be null");
        }
        try
        {
	        for (final java.util.Iterator entityIterator = entities.iterator(); entityIterator.hasNext();)
	        {
	            remove((com.agcs.amd2.model.util.Information)entityIterator.next());
	        }
	    }
	    catch (Exception ex)
	    {
	        throw new com.agcs.amd2.model.util.DaoException(ex);
	    }
    }

    /**
     * @see com.agcs.amd2.model.util.InformationDao#getLastVersion()
     */
    public java.lang.Integer getLastVersion()
        throws com.agcs.amd2.model.util.DaoException
    {
        return (java.lang.Integer)this.getLastVersion(TRANSFORM_NONE);
    }

    /**
     * @see com.agcs.amd2.model.util.InformationDao#getLastVersion(java.lang.String)
     */
    public java.lang.Integer getLastVersion(final java.lang.String queryString)
        throws com.agcs.amd2.model.util.DaoException
    {
        return (java.lang.Integer)this.getLastVersion(TRANSFORM_NONE, queryString);
    }

    /**
     * @see com.agcs.amd2.model.util.InformationDao#getLastVersion(int)
     */
    public Object getLastVersion(final int transform)
        throws com.agcs.amd2.model.util.DaoException
    {
        try
        {
                      if (false) {
      /* Commented out because it is an abstract query */
            javax.persistence.Query queryObject = null;
            Object result = queryObject.getSingleResult();
            result = transformEntity(transform, (com.agcs.amd2.model.util.Information)result);
            return result;
          }    /* We close the commenting of abstract queries */
          return null;
        }
        catch (Exception ex)
        {
            throw new com.agcs.amd2.model.util.DaoException(ex);
        }
    }

    /**
     * @see com.agcs.amd2.model.util.InformationDao#getLastVersion(int, java.lang.String)
     */
    public Object getLastVersion(final int transform, final java.lang.String queryString)
        throws com.agcs.amd2.model.util.DaoException
    {
        try
        {
            javax.persistence.Query queryObject = getEntityManager().createQuery(queryString);
            Object result = queryObject.getSingleResult();
            result = transformEntity(transform, (com.agcs.amd2.model.util.Information)result);
            return result;
        }
        catch (Exception ex)
        {
            throw new com.agcs.amd2.model.util.DaoException(ex);
        }
    }

    /**
     * Allows transformation of entities into value objects
     * (or something else for that matter), when the <code>transform</code>
     * flag is set to one of the constants defined in <code>com.agcs.amd2.model.util.InformationDao</code>, please note
     * that the {@link #TRANSFORM_NONE} constant denotes no transformation, so the entity itself
     * will be returned.
     *
     * If the integer argument value is unknown {@link #TRANSFORM_NONE} is assumed.
     *
     * @param transform one of the constants declared in {@link com.agcs.amd2.model.util.InformationDao}
     * @param entity an entity that was found
     * @return the transformed entity (i.e. new value object, etc)
     * @see #transformEntities(int,java.util.Collection)
     */
    protected Object transformEntity(final int transform, final com.agcs.amd2.model.util.Information entity)
    {
        Object target = null;
        if (entity != null)
        {
            switch (transform)
            {
                case TRANSFORM_NONE : // fall-through
                default:
                    target = entity;
            }
        }
        return target;
    }

    /**
     * Transforms a collection of entities using the
     * {@link #transformEntity(int, com.agcs.amd2.model.util.Information)}
     * method. This method does not instantiate a new collection.
     * <p/>
     * This method is to be used internally only.
     *
     * @param transform one of the constants declared in <code>com.agcs.amd2.model.util.InformationDao</code>
     * @param entities the collection of entities to transform
     * @return the same collection as the argument, but this time containing the transformed entities
     * @see #transformEntity(int, com.agcs.amd2.model.util.Information)
     */
    protected void transformEntities(final int transform, final java.util.Collection entities)
    {
        switch (transform)
        {
            case TRANSFORM_NONE : // fall-through
                default:
                // do nothing;
        }
    }

}