org.onosproject.ui.table.cell

Class DefaultCellComparator

java.lang.Object

org.onosproject.ui.table.cell.AbstractCellComparator

org.onosproject.ui.table.cell.DefaultCellComparator

All Implemented Interfaces:

CellComparator

public final class DefaultCellComparator
extends AbstractCellComparator

A default cell comparator.

Verifies that the objects being compared are the same class. Looks to see if the objects being compared implement comparable and, if so, delegates to that; otherwise, implements a lexicographical compare function (i.e. string sorting). Uses the objects' toString() method and then compares the resulting strings. Note that null values are acceptable and are considered "smaller" than any non-null value.

Field Summary

Fields

Modifier and Type	Field and Description
static CellComparator	INSTANCE An instance of this class.

Method Summary

Modifier and Type	Method and Description
protected int	nonNullCompare(java.lang.Object o1, java.lang.Object o2) Compares its two arguments for order.

Methods inherited from class org.onosproject.ui.table.cell.AbstractCellComparator

compare

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final CellComparator INSTANCE

An instance of this class.

Method Detail

nonNullCompare

protected int nonNullCompare(java.lang.Object o1,
                             java.lang.Object o2)

Description copied from class: AbstractCellComparator

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.

Note that both objects are guaranteed to be non-null.

Specified by:

nonNullCompare in class AbstractCellComparator

Parameters:

o1 - the first object to be compared

o2 - the second object to be compared

Returns:

an integer representing relative ordering

See Also:

Comparator.compare(Object, Object)