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/parser/ListPropertyState.java
return;
				
				if ( element instanceof Module
						&& "includeLibraries".equalsIgnoreCase( name ) ) 
					return;
				if ( element instanceof ScriptDataSet
						&& "resultSet".equalsIgnoreCase( name ) ) 
					return;
				
				DesignParserException e = new DesignParserException(
						new String[]{name},
						DesignParserException.DESIGN_EXCEPTION_UNDEFINED_PROPERTY );
				RecoverableError.dealUndefinedProperty( handler, e );
				valid = false;
			}
			else
			{
				if ( PropertyType.STRUCT_TYPE != propDefn.getTypeCode( ) )
				{
					DesignParserException e = new DesignParserException(
							DesignParserException.DESIGN_EXCEPTION_WRONG_STRUCTURE_LIST_TYPE );
					handler.getErrorHandler( ).semanticError( e );
					valid = false;
				}
			}
		}
	}
	/*
	 * (non-Javadoc)
	 *