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public interface Numberer<E>
A numberer converts objects to unique non-negative integers, and vice-versa.
Method Summary | |
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void |
add(E o)
Tells the numberer that a new object needs to be assigned a number. |
long |
get(E o)
Should return the number that was assigned to object o that was previously passed as an argument to add(). |
E |
get(long number)
Should return the object that was assigned the number number. |
int |
size()
Should return the number of objects that have been assigned numbers. |
Method Detail |
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void add(E o)
long get(E o)
E get(long number)
int size()
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