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The SEDRIS Data Representation Model
APPENDIX A - Classes Control Link |
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An instance of a concrete class derived from this DRM class specifies the connection between <Expression> instances and the fields of other SEDRIS objects (called target objects). For each class of target object, there shall be a specialization of this class to match it. Objects of the specialized subclass shall be aggregated by the target object. The definition of each subclass shall specify how the ordered list of <Expression> instances is used to determine the values of the fields of the target object (called target fields).
In general, a specialized <Control Link> will contain at least one field (called a link field) for each target field in the target object. The link field is an index into the ordered aggregation of <Expression> instances, and is used to select the specific <Expression> that controls the value of the target field. The specialization may also contain "constraint" fields that are indexes into the ordered aggregation of <Expression> instances, and are used to constrain the values of the target field.
See individual subclasses for examples.
| SE_String | description; | (notes) |
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The description field specifies a text description of the given <Control Link> instance's purpose.
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