Bug 127861 [DataBinding] Mark API provisional
bundles/org.eclipse.jface.databinding/src/org/eclipse/jface/databinding/viewers/TableViewerDescription.java
* @param cellEditor
		 * @param validator
		 * @param converter
		 */
		public Column(String propertyName, CellEditor cellEditor,
				IValidator validator, IConverter converter) {
			this.propertyName = propertyName;
			this.cellEditor = cellEditor;
			this.validator = validator;
			this.converter = converter;
			readOnly = false;
		}
		
		Column(String propertyName, IConverter converter) {
			this.propertyName = propertyName;
			this.converter = converter;
			readOnly = true;
		}
		/**
		 * @return IConverter
		 */
		public IConverter getConverter() {
			return converter;
		}
		/**
		 * @return String name
		 */
		public String getPropertyName() {
			return propertyName;
		}