77 lines
1.7 KiB
Java
77 lines
1.7 KiB
Java
/*
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* Copyright 2015 dorkbox, llc
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package dorkbox.collections;
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//
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// not thread-safe!!!
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//
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/**
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* @author bennidi
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* @author dorkbox, llc Date: 2/3/16
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*/
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public
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class ConcurrentEntry<T> {
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private final T value;
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private volatile ConcurrentEntry<T> next;
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private volatile ConcurrentEntry<T> prev;
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public
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ConcurrentEntry(T value, ConcurrentEntry<T> next) {
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if (next != null) {
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this.next = next;
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next.prev = this;
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}
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this.value = value;
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}
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public
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void remove() {
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if (this.prev != null) {
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this.prev.next = this.next;
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if (this.next != null) {
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this.next.prev = this.prev;
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}
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}
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else if (this.next != null) {
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this.next.prev = null;
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}
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// can not nullify references to help GC since running iterators might not see the entire set
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// if this element is their current element
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//next = null;
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//prev = null;
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}
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public
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ConcurrentEntry<T> next() {
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return this.next;
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}
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public
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void clear() {
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this.next = null;
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}
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public
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T getValue() {
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return value;
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}
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}
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