Position metric interface. This interface is designed for describing
a navigational structure that consists on number of lines where
every line consists of number of elements
public
<Integer>
getLines ( )
Get number of lines to navigate through
Returns:
<Integer>
a number of lines
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public
<Integer>
getLineSize (l )
Get a number of elements in the given line
Parameters:
Returns:
<Integer>
a number of elements in a line
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public
<Integer>
getMaxOffset ( )
Get a maximal element index (a last element of a last line)
Returns:
<Integer>
a maximal element index
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