de.gsi.dataset

Interface EditConstraints

public interface EditConstraints

interface describing possible constraints on data set modifications

Author:

rstein

Method Summary

Modifier and Type	Method and Description
boolean	canAdd(int index)
default boolean	canChange(int index) Determines if the specified data point can be modified.
boolean	canDelete(int index)
default boolean	isAcceptable(int index, double newX, double newY) Determines if the specified point can be accepted by the data set.
boolean	isXEditable()
boolean	isYEditable()

Method Detail

canDelete

boolean canDelete(int index)

Parameters:

index - data set point index

Returns:

true: if the specified data point can be deleted.

canAdd

boolean canAdd(int index)

Parameters:

index - data set point index

Returns:

true: if a new data point can be added at the specified data point.

canChange

default boolean canChange(int index)

Determines if the specified data point can be modified.

Parameters:

index - data point index

Returns:

default is true

isXEditable

boolean isXEditable()

Returns:

true: if the horizontal values can be modified

isYEditable

boolean isYEditable()

Returns:

true: if the vertical values can be modified

isAcceptable

default boolean isAcceptable(int index,
                             double newX,
                             double newY)

Determines if the specified point can be accepted by the data set. The specified point may be a new point (in this case index should be -1) or existing point. This method can be used e.g. to make sure that the new point doesn't have the same X coordinate as existing point.

Parameters:

index - index of the point being modified or -1 if it is a new point

newX - X coordinate of the considered point

newY - Y coordinate of the considered point

Returns:

true if the point is acceptable by the data set, false otherwise