diff options
Diffstat (limited to 'framework/src/onos/core/api/src/main/java/org/onosproject/ui/table/CellComparator.java')
-rw-r--r-- | framework/src/onos/core/api/src/main/java/org/onosproject/ui/table/CellComparator.java | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/framework/src/onos/core/api/src/main/java/org/onosproject/ui/table/CellComparator.java b/framework/src/onos/core/api/src/main/java/org/onosproject/ui/table/CellComparator.java new file mode 100644 index 00000000..84d11344 --- /dev/null +++ b/framework/src/onos/core/api/src/main/java/org/onosproject/ui/table/CellComparator.java @@ -0,0 +1,46 @@ +/* + * Copyright 2015 Open Networking Laboratory + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ + +package org.onosproject.ui.table; + +/** + * Defines a comparator for cell values. + */ +public interface CellComparator { + + /** + * 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.<p> + * + * Note that nulls are permitted, and should be sorted to the beginning + * of an ascending sort; i.e. null is considered to be "smaller" than + * non-null values. + * + * @see java.util.Comparator#compare(Object, Object) + * + * @param o1 the first object to be compared. + * @param o2 the second object to be compared. + * @return a negative integer, zero, or a positive integer as the + * first argument is less than, equal to, or greater than the + * second. + * @throws ClassCastException if the arguments' types prevent them from + * being compared by this comparator. + */ + int compare(Object o1, Object o2); + +} |