Package org.apache.commons.math4.linear

Interface RealVectorPreservingVisitor

public interface RealVectorPreservingVisitor

This interface defines a visitor for the entries of a vector. Visitors implementing this interface do not alter the entries of the vector being visited.

Since:

3.1

Method Summary

Modifier and Type	Method	Description
double	end()	End visiting a vector.
void	start(int dimension, int start, int end)	Start visiting a vector.
void	visit(int index, double value)	Visit one entry of the vector.

Method Details

start

void start(int dimension, int start, int end)

Start visiting a vector. This method is called once, before any entry of the vector is visited.

Parameters:

dimension - the size of the vector

start - the index of the first entry to be visited

end - the index of the last entry to be visited (inclusive)

visit

void visit(int index, double value)

Visit one entry of the vector.

Parameters:

index - the index of the entry being visited

value - the value of the entry being visited

end

double end()

End visiting a vector. This method is called once, after all entries of the vector have been visited.

Returns:

the value returned by RealVector.walkInDefaultOrder(RealVectorPreservingVisitor), RealVector.walkInDefaultOrder(RealVectorPreservingVisitor, int, int), RealVector.walkInOptimizedOrder(RealVectorPreservingVisitor) or RealVector.walkInOptimizedOrder(RealVectorPreservingVisitor, int, int)