Package org.hipparchus.linear

Class DefaultFieldMatrixChangingVisitor<T extends FieldElement<T>>

java.lang.Object

org.hipparchus.linear.DefaultFieldMatrixChangingVisitor<T>

Type Parameters:

T - the type of the field elements

All Implemented Interfaces:

FieldMatrixChangingVisitor<T>

public class DefaultFieldMatrixChangingVisitor<T extends FieldElement<T>>
extends Object
implements FieldMatrixChangingVisitor<T>

Default implementation of the FieldMatrixChangingVisitor interface.

This class is a convenience to create custom visitors without defining all methods. This class provides default implementations that do nothing.

Constructor Summary

Constructors

Constructor	Description
DefaultFieldMatrixChangingVisitor(T zero)	Build a new instance.

Method Summary

Modifier and Type	Method	Description
T	end()	End visiting a matrix.
void	start(int rows, int columns, int startRow, int endRow, int startColumn, int endColumn)	Start visiting a matrix.
T	visit(int row, int column, T value)	Visit one matrix entry.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

DefaultFieldMatrixChangingVisitor

public DefaultFieldMatrixChangingVisitor(T zero)

Build a new instance.

Parameters:

zero - additive identity of the field

Method Details

start

public void start(int rows,
 int columns,
 int startRow,
 int endRow,
 int startColumn,
 int endColumn)

Start visiting a matrix.

This method is called once before any entry of the matrix is visited.

Specified by:

start in interface FieldMatrixChangingVisitor<T extends FieldElement<T>>

Parameters:

rows - number of rows of the matrix

columns - number of columns of the matrix

startRow - Initial row index

endRow - Final row index (inclusive)

startColumn - Initial column index

endColumn - Final column index (inclusive)

visit

public T visit(int row,
 int column,
 T value)

Visit one matrix entry.

Specified by:

visit in interface FieldMatrixChangingVisitor<T extends FieldElement<T>>

Parameters:

row - row index of the entry

column - column index of the entry

value - current value of the entry

Returns:

the new value to be set for the entry

end

public T end()

End visiting a matrix.

This method is called once after all entries of the matrix have been visited.

Specified by:

end in interface FieldMatrixChangingVisitor<T extends FieldElement<T>>

Returns:

the value that the walkInXxxOrder must return