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ENTITY listed_product_space SUBTYPE OF (maths_space, generic_literal); factors : LIST [0:?] OF maths_space; WHERE WR1: SIZEOF (QUERY (space <* factors | NOT (expression_is_constant(space)))) = 0; WR2: no_cyclic_space_reference(SELF, []); WR3: NOT (the_empty_space IN factors); END_ENTITY; -- listed_product_space |
Entity data types and their attributesgeneric_expression- maths_space - simple_generic_expression - generic_literal - listed_product_space factors: LIST [0:?] OF maths_space; |
Global rules for this entity data type- |