com.klg.jclass.util.swing
Class DefaultRowComparator

java.lang.Object
  |
  +--com.klg.jclass.util.swing.DefaultRowComparator

All Implemented Interfaces:

JCRowComparator, Serializable

public class DefaultRowComparator

extends Object

implements JCRowComparator, Serializable

This class is to be used with JCRowSortModel. It sorts rows by the list of columns specified. By default it only sorts on the first column

See Also:

Serialized Form

Field Summary

static int	FORWARD Valid value for SortOrder
protected int[]	keyColumns
protected int	order
static int	REVERSE Valid value for SortOrder

Constructor Summary

DefaultRowComparator(int order)
Creates a JCRowComparator that sorts columns by the natural order of the values in the first column.

DefaultRowComparator(int order, int[] keyColumns)
Creates a JCRowComparator that sorts columns according with the list of columns specified.

Method Summary

int	compare(com.klg.jclass.util.swing.JCComparableRow row1, com.klg.jclass.util.swing.JCComparableRow row2) Compares its two arguments for order.
int[]	getKeyColumns() Gets a list of columns by which to sort.
int	getSortOrder() Gets a sorting order.
void	setKeyColumns(int[] keyColumns) Sets a list of columns by which to sort.
void	setSortOrder(int order) Sets a sorting order.

Methods inherited from class java.lang.Object

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

Field Detail

FORWARD

public static final int FORWARD

Valid value for SortOrder

See Also:

Constant Field Values

REVERSE

public static final int REVERSE

Valid value for SortOrder

See Also:

Constant Field Values

order

protected int order

keyColumns

protected int[] keyColumns

Constructor Detail

DefaultRowComparator

public DefaultRowComparator(int order)

Creates a JCRowComparator that sorts columns by the natural order of the values in the first column.

Parameters:

order - The sort order (FORWARD or REVERSE)

DefaultRowComparator

public DefaultRowComparator(int order,
                            int[] keyColumns)

Creates a JCRowComparator that sorts columns according with the list of columns specified.

Parameters:

order - The sort order (FORWARD or REVERSE)

keyColumns - A list of columns by which to sort

Method Detail

setKeyColumns

public void setKeyColumns(int[] keyColumns)

Sets a list of columns by which to sort.

Specified by:

setKeyColumns in interface JCRowComparator

Parameters:

keyColumns - The new list of columns by which to sort

getKeyColumns

public int[] getKeyColumns()

Gets a list of columns by which to sort.

Specified by:

getKeyColumns in interface JCRowComparator

Returns:

The list of columns by which to sort

setSortOrder

public void setSortOrder(int order)

Sets a sorting order.

Specified by:

setSortOrder in interface JCRowComparator

Parameters:

order - The new sort order (FORWARD or REVERSE)

getSortOrder

public int getSortOrder()

Gets a sorting order.

Specified by:

getSortOrder in interface JCRowComparator

Returns:

The current sort order (FORWARD or REVERSE)

compare

public int compare(com.klg.jclass.util.swing.JCComparableRow row1,
                   com.klg.jclass.util.swing.JCComparableRow row2)

Compares its two arguments for order. Returns a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second respectively.

Specified by:

compare in interface JCRowComparator

Parameters:

row1 - The row of the first argument in the compare

row2 - The row of the second argument in the compare

Returns:

A negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second respectively.