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Apache CXF example source code file (ModCountCopyOnWriteArrayList.java)
This example Apache CXF source code file (ModCountCopyOnWriteArrayList.java) is included in the DevDaily.com
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The Apache CXF ModCountCopyOnWriteArrayList.java source code
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.cxf.common.util;
import java.util.Collection;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.atomic.AtomicInteger;
public final class ModCountCopyOnWriteArrayList<T> extends CopyOnWriteArrayList {
AtomicInteger modCount = new AtomicInteger();
public ModCountCopyOnWriteArrayList() {
super();
}
public ModCountCopyOnWriteArrayList(Collection<? extends T> c) {
super(c);
if (c instanceof ModCountCopyOnWriteArrayList) {
modCount.set(((ModCountCopyOnWriteArrayList)c).getModCount());
}
}
public int getModCount() {
return modCount.get();
}
public void setModCount(int i) {
modCount.set(i);
}
@Override
public void add(int index, T element) {
super.add(index, element);
modCount.incrementAndGet();
}
@Override
public boolean add(T element) {
if (super.add(element)) {
modCount.incrementAndGet();
return true;
}
return false;
}
@Override
public boolean addAll(Collection<? extends T> c) {
if (super.addAll(c)) {
modCount.incrementAndGet();
return true;
}
return false;
}
@Override
public boolean addAll(int index, Collection<? extends T> c) {
if (super.addAll(index, c)) {
modCount.incrementAndGet();
return true;
}
return false;
}
@Override
public int addAllAbsent(Collection<? extends T> c) {
int i = super.addAllAbsent(c);
if (i > 0) {
modCount.incrementAndGet();
}
return i;
}
@Override
public boolean addIfAbsent(T element) {
if (super.addIfAbsent(element)) {
modCount.incrementAndGet();
return true;
}
return false;
}
@Override
public void clear() {
super.clear();
modCount.incrementAndGet();
}
@Override
public T remove(int index) {
T t = super.remove(index);
if (t != null) {
modCount.incrementAndGet();
}
return t;
}
@Override
public boolean remove(Object o) {
if (super.remove(o)) {
modCount.incrementAndGet();
return true;
}
return false;
}
@Override
public boolean removeAll(Collection c) {
if (super.removeAll(c)) {
modCount.incrementAndGet();
return true;
}
return false;
}
@Override
public boolean retainAll(Collection c) {
if (super.retainAll(c)) {
modCount.incrementAndGet();
return true;
}
return false;
}
public int hashCode() {
return super.hashCode() + modCount.get();
}
public boolean equals(Object o) {
if (o instanceof ModCountCopyOnWriteArrayList) {
return super.equals(o) && modCount.get() == ((ModCountCopyOnWriteArrayList)o).getModCount();
}
return false;
}
}
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