Bug 179674 Support time dimension in model
When define time dimension in model, the "itTime" property will be set. However this is not enough. We also need to know to what precision the time value should be evaluated, say, year, month, day, etc. Model needs to be enhanced to support such requirement.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/writer/ModuleWriter.java
*/
	protected boolean markLineNumber = true;
	/**
	 * Returns the module to write.
	 * 
	 * @return the module to write
	 */
	abstract protected Module getModule( );
	/**
	 * Writes the report design to a file.
	 * 
	 * @param outputFile
	 *            output file into which to write the design
	 * 
	 * @throws IOException
	 *             if a write error occurs
	 */
	public void write( File outputFile ) throws IOException
	{
		
		ModuleOption options = getModule( ).getOptions( );
		if ( options != null )
			markLineNumber = options.markLineNumber( );
		writer = new IndentableXMLWriter( outputFile, getModule( )
				.getUTFSignature( ), markLineNumber );
		writeFile( );
		writer.close( );
	}
	/**
	 * Writes the report design to the output stream.