Interface Reference<T>
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public interface Reference<T>
A very general purpose interface to provide a reference to an object that may or may not be available. Uses can range from allowing someone else to attach/detach the value, to calculating the reference on the fly.Does not support null values, as null represents "not available". If you need to pass null, you should use a sentinel that extends from T to indicate the null condition.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description T
get()
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Method Detail
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get
T get()
- Returns:
- the referenced object. Returns NULL if the reference is not available.
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