Bug 150347 Support binary stream as preview image.
See 144843. We need model to save binary strame as report preview image. Currently, preview image is an external image. Maybe need a type to distinguish preview image type.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/elements/ReportDesign.java
}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.core.DesignElement#validate(org.eclipse.birt.report.model.elements.ReportDesign)
	 */
	public List validate( Module module )
	{
		List list = super.validate( module );
		
		list.addAll( MasterPageRequiredValidator.getInstance( ).validate( this,
				this ) );
		list.addAll( validateStructureList( module, IMAGES_PROP ) );
		list.addAll( validateStructureList( module, COLOR_PALETTE_PROP ) );
		list.addAll( validateStructureList( module, INCLUDE_SCRIPTS_PROP ) );
		list.addAll( validateStructureList( module, LIBRARIES_PROP ) );
		list.addAll( validateStructureList( module, PROPERTY_BINDINGS_PROP ) );
		return list;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.core.DesignElement#getElementName()
	 */
	public String getElementName( )
	{
		return ReportDesignConstants.REPORT_DESIGN_ELEMENT;
	}
	/*
	 * (non-Javadoc)