Bug 138562 Splite extendsexcpetion to seperate sub class
The suggestion is Parent invalid Cycle extends Different type extends Not top level extends
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/elements/OdaDataSet.java
* (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.core.DesignElement#apply(org.eclipse.birt.report.model.elements.ElementVisitor)
	 */
	public void apply( ElementVisitor visitor )
	{
		visitor.visitOdaDataSet( this );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.core.DesignElement#getElementName()
	 */
	public String getElementName( )
	{
		return ReportDesignConstants.ODA_DATA_SET;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.core.DesignElement#getHandle(org.eclipse.birt.report.model.elements.ReportDesign)
	 */
	public DesignElementHandle getHandle( Module module )
	{
		return handle( module );
	}
	/**
	 * Returns an API handle for this element.
	 * 
	 * @param module