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ENTITY real_constraint SUBTYPE OF (attribute_value_constraint); constraint_value : REAL; UNIQUE ur1 : attribute, constraint_value; END_ENTITY; -- real_constraint  | 
Entity data types and their attributesconstraint- constraint_attribute - attribute_value_constraint attribute: attribute_value_constraint_select; real_constraint constraint_value: REAL;  | 
Global rules for this entity data type- | 
public interface EReal_constraint extends EAttribute_value_constraintconstraint_value (explicit attribute)boolean testConstraint_value(EReal_constraint type)double getConstraint_value(EReal_constraint type) void setConstraint_value(EReal_constraint type, double value) void unsetConstraint_value(EReal_constraint type)  | 
public class CReal_constraint implements EReal_constraintstatic EAttribute attributeConstraint_value(EReal_constraint type) | 
public class AReal_constraint extends AEntitypublic EReal_constraint getByIndex(int index)public EReal_constraint getCurrentMember(SdaiIterator it)  |