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Which directive would you use to retrieve a property value from an instance not present on the clipboard?

  1. Reference directive

  2. Literal directive

  3. Lookup directive

  4. Java directive
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C Correct answer
Explanation

The Lookup directive is specifically designed to retrieve a property value from an instance that is not present on the clipboard. Unlike Reference directive which works with clipboard pages, Lookup fetches data from the database or other sources by key. Literal directive is for constant values, while Java directive is for Java code execution.

AI explanation

A Lookup directive is used to retrieve a property/field value from an object instance that exists in a data source or repository but is not currently loaded onto the clipboard (the in-memory working set). It performs an on-demand fetch of the needed value. A Reference directive typically points to an object already on the clipboard rather than fetching a new one; a Literal directive just supplies a fixed constant value rather than retrieving data; 'Java directive' isn't a recognized directive type in this context — Java is a language, not a data-retrieval mechanism. So Lookup is the only option whose purpose matches 'fetch a value for an instance not currently in memory.'

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