de.swm.commons.mobile.client.utils

Class IntegerRange

java.lang.Object

de.swm.commons.mobile.client.utils.IntegerRange

public class IntegerRange
extends Object

Utility class to represent a mutable range of integer values with an optional distinguished value within the given range. The range may be specified with start and end values or with a given distinguished value and a span which will cover the value symmetrically. This class is suited to represent date intervals for DateTextBox Widget.

Constructor Summary

Constructors

Constructor and Description
IntegerRange() Create an empty range with a default span of values.
IntegerRange(int value) Create an integer range around the given value with a default span.
IntegerRange(int value, int span) Create an integer range around the given value with a given span.
IntegerRange(int start, int end, int value) Create an integer range with the given start and end values.

Method Summary

Methods

Modifier and Type	Method and Description
int	getEndValue()
int	getSpan()
int	getStartValue()
void	setRange(int start, int end) Sets the lower and upper boundary of the range.
void	setSpan(int span) Sets the span of the range around the given distinguished value.
void	setValue(int value) Sets the distinguished value of the integer range.

Methods inherited from class java.lang.Object

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

Constructor Detail

IntegerRange

public IntegerRange()

Create an empty range with a default span of values.

IntegerRange

public IntegerRange(int value)

Create an integer range around the given value with a default span.

Parameters:

value - Value wich is used to center the range

IntegerRange

public IntegerRange(int value,
            int span)

Create an integer range around the given value with a given span.

Parameters:

value - Value wich is used to center the range

span - Span which will cover the given value symmetrically

IntegerRange

public IntegerRange(int start,
            int end,
            int value)

Create an integer range with the given start and end values. An optional distinguished value may be specified.

Parameters:

start - Lower bound of the range

end - Upper bound of the range

value - Optional distinguished value within the specified range (-1 for unspecified value)

Method Detail

setValue

public void setValue(int value)

Sets the distinguished value of the integer range. The range will be adjusted to include this value.

Parameters:

value - Distinguished value within the range (-1 to reset the value)

setRange

public void setRange(int start,
            int end)

Sets the lower and upper boundary of the range. The range will be adjusted to include the distinguished value if necessary.

Parameters:

start - Lower positive bound of the range

end - Upper positive bound of the range

getStartValue

public int getStartValue()

getEndValue

public int getEndValue()

getSpan

public int getSpan()

setSpan

public void setSpan(int span)

Sets the span of the range around the given distinguished value. This will adjust the lower and upper bound of the range to result in the given span.

Parameters:

span - Span of values which defines the range (0 for a single element range)