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package queries
import "http://www.example.org/familytree"
@Constraint(message="memberIsItsOwnParent", severity="error", key={m})
pattern memberIsItsOwnParent(m: Member) = {
FamilyTree.members(_, m);
Member.parents(m, p);
m == p;
}
@Constraint(message="twoMembersHaveNoParent", severity="error", key={m1, m2})
pattern twoMembersHaveNoParent(m1:Member, m2:Member) = {
neg find memberHasParent(m1);
neg find memberHasParent(m2);
m1 != m2;
}
pattern memberHasParent(m: Member) = {
Member.parents(m, _);
}
@Constraint(message="negativeAge", severity="error",key={m})
pattern negativeAge(m: Member) {
Member.age(m,mage);
check(mage<0);
}
//@Constraint(message="realisticAge", severity="error",key={m})
//pattern realisticAge(m: Member) {
// Member.age(m,mage);
// check(mage>120);
//}
@Constraint(message="parentTooYoung", severity="error", key={c, p})
pattern parentTooYoung(c: Member, p: Member) = {
FamilyTree.members(_, c);
Member.parents(c, p);
Member.age(c, cAge);
Member.age(p, pAge);
check (pAge <= (cAge + 12));
}
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