else if (name.equals (Literals.CONTAINS))
result = new ContainsExpression (e, getRequestedResourcePool());
else if (name.equals (Literals.NOT_CONTAINS))
result = new NotContainsExpression (e, getRequestedResourcePool());
else if (name.equals (Literals.ISCOLLECTION))
result = new IsCollectionExpression (e, getRequestedResourcePool());
else if (name.equals (Literals.NOT_ISCOLLECTION))