package org.minetti.astrodevice.server.hibernate.dao;
   
   import javax.persistence.EntityTransaction;
   import org.minetti.astrodevice.server.core.dao.DaoTransaction;
   
   /**
    * Transaction used to group multiple changing by DAO with Hibernate framework.
    * @author Jean-Philippe MINETTI
    */
  public final class DaoTransactionImpl
  		implements DaoTransaction {
  
  	/**
  	 * Entity transaction.
  	 */
  	private final EntityTransaction transaction;
  
  	/**
  	 * Hidden constructor.
  	 * @param transaction Entity transaction.
  	 * @see DaoModuleImpl#newDaoTransaction(org.minetti.astrodevice.server.core.dao.DaoSession)
  	 */
  	protected DaoTransactionImpl (final EntityTransaction transaction) {
  		super();
  		this.transaction = transaction;
  	}
  
  	/*
  	 * (non-Javadoc)
  	 * @see org.minetti.astrodevice.server.core.dao.DaoTransaction#begin()
  	 */
  	public void begin () {
  		this.transaction.begin();
  	}
  
  	/*
  	 * (non-Javadoc)
  	 * @see org.minetti.astrodevice.server.core.dao.DaoTransaction#end(boolean)
  	 */
  	public void end (boolean committed) {
  		if (committed) {
  			this.transaction.commit();
  		}
  		else {
  			this.transaction.rollback();
  		}
  	}
  
  	/*
  	 * (non-Javadoc)
  	 * @see java.lang.Object#toString()
  	 */
  	@Override
  	public String toString () {
  		return "DaoTransactionImpl[transaction=" + this.transaction + "]";
  	}
  
  }