src/org/tiefaces/components/websheet/utility/ConfigurationUtility.java
@SuppressWarnings("rawtypes")
	public static Collection transformToCollectionObject(
			final ExpressionEngine engine, final String collectionName,
			final Map<String, Object> context) {
		Object collectionObject = engine.evaluate(collectionName, context);
		if (!(collectionObject instanceof Collection)) {
			throw new EvaluationException(
					collectionName + " expression is not a collection");
		}
		return (Collection) collectionObject;
	}
@SuppressWarnings("rawtypes")
	public static Collection transformToCollectionObject(
			final ExpressionEngine engine, final String collectionName,
			final Map<String, Object> context) {
		Object collectionObject = engine.evaluate(collectionName, context);
		if (!(collectionObject instanceof Collection)) {
			throw new EvaluationException(
					collectionName + " expression is not a collection");
		}
		return (Collection) collectionObject;
	}
@ SuppressWarnings ( "rawtypes" ) public static Collection transformToCollectionObject ( final ExpressionEngine engine , final String collectionName , final Map < String , Object > context ) { Object collectionObject = engine . evaluate ( collectionName , context ) ; if ( ! ( collectionObject instanceof Collection ) ) { throw new EvaluationException ( collectionName + " expression is not a collection" ) ; } return ( Collection ) collectionObject ; }
Transform to collection object.

@param engine
the engine
@param collectionName
the collection name
@param context
the context
@return the collection
Transform to collection object .