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object --+ | pathfeatures.PathFeature --+ | Constraint --+ | SubClassConstraint
If an object has a reference X to another object of type A, and type B extends type A, then any object of type B may be the value of the reference X. If you only want to see X's which are B's, this may be achieved with subclass constraints, which allow the type of an object to be limited to one of the subclasses (at any depth) of the class type required by the attribute.
These constraints do not use operators. Since they cannot be conditional (eg. "A is a B or A is a C" would not be possible in an InterMine query), they do not have codes and cannot be referenced in logic expressions.
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Inherited from Inherited from |
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Inherited from |
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Inherited from |
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Constructor
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Provide a human readable representation of the logic. This method is called by repr.
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Return a dict object which can be used to construct a DOM element with the appropriate attributes.
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