Bug 121273 Script modification of style properties does not work for data item
Create a report with a lable and a data item. In the onCreate method for both items, put this.style.color="red" The label item works, but the data item does not.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/DataEngineImpl.java
return prepare( querySpec, null );
	}
	/*
	 * If user wants to use data set cache option, this method should be called
	 * to pass cache option information from the upper layer.
	 * 
	 * @see org.eclipse.birt.data.engine.api.DataEngine#prepare(org.eclipse.birt.data.engine.api.IQueryDefinition,
	 *      java.util.Map)
	 */
	public IPreparedQuery prepare( IQueryDefinition querySpec,
	        						Map appContext )
		throws DataException
	{
		if ( logger.isLoggable( Level.FINER ) )
			logger.entering( DataEngineImpl.class.getName( ),
					"prepare",
					LogUtil.toString( querySpec ) );
		if ( dataSources == null )
		{
			IllegalStateException e = new IllegalStateException( "DataEngine has been shutdown" );
			logger.logp( Level.WARNING,
					DataEngineImpl.class.getName( ),
					"prepare",
					"DataEngine has been shutdown",
					e );
			throw e;
		}
		if ( logger.isLoggable( Level.FINE ) )
			logger.fine( "Start to prepare query: "
					+ LogUtil.toString( querySpec ) );