Package com.cedarsoftware.util

Class ConcurrentNavigableMapNullSafe<K,V>

java.lang.Object
com.cedarsoftware.util.AbstractConcurrentNullSafeMap<K,V>
com.cedarsoftware.util.ConcurrentNavigableMapNullSafe<K,V>
Type Parameters:
K - The type of keys maintained by this map
V - The type of mapped values
All Implemented Interfaces:
ConcurrentMap<K,V>, ConcurrentNavigableMap<K,V>, Map<K,V>, NavigableMap<K,V>, SortedMap<K,V>
public class ConcurrentNavigableMapNullSafe<K,V> extends AbstractConcurrentNullSafeMap<K,V> implements ConcurrentNavigableMap<K,V>
ConcurrentNavigableMapNullSafe is a thread-safe implementation of ConcurrentNavigableMap that allows null keys and values. A dedicated sentinel object is used internally to represent null keys, ensuring no accidental key collisions. From an ordering perspective, null keys are considered last. This is honored with the ascending and descending views, where ascending view places them last, and descending view place a null key first.
Author:
John DeRegnaucourt ([email protected])
Copyright (c) Cedar Software LLC

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

License

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.