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object --+ | pathfeatures.PathFeature --+ | Constraint --+ | object --+ | | | LogicNode --+ | CodedConstraint
Constraints that have codes are the principal logical filters on queries, and need to be refered to individually (hence the codes). They will all have a logical operation they embody, and so have a reference to an operator.
This class is not meant to be instantiated directly, but instead inherited from to supply default behaviour.
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Inherited from Inherited from Inherited from |
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OPS =
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Inherited from |
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Inherited from |
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Constructor
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Stringify to the code they are refered to by.
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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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