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A set of utilities and tools to speed up and ease programming in Java.
There is a newer version: 0.5
/*
 * (c) 2005 David B. Bracewell
 *
 * 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 com.davidbracewell.collection;

import lombok.NonNull;

import java.io.Serializable;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.function.DoublePredicate;
import java.util.function.DoubleUnaryOperator;
import java.util.function.Function;
import java.util.function.Predicate;

/**
 * @author David B. Bracewell
 */
final class SynchronizedCounter implements Counter, Serializable {
  private static final long serialVersionUID = 1L;

  final Counter delegate;

  public SynchronizedCounter(Counter delegate) {
    this.delegate = delegate;
  }

  @Override
  public synchronized  Counter mapKeys(Function function) {
    return delegate.mapKeys(function);
  }

  @Override
  public synchronized Counter adjustValues(DoubleUnaryOperator function) {
    return delegate.adjustValues(function);
  }

  @Override
  public synchronized Counter adjustValuesSelf(@NonNull DoubleUnaryOperator function) {
    return delegate.adjustValuesSelf(function);
  }

  @Override
  public synchronized Map asMap() {
    return delegate.asMap();
  }

  @Override
  public synchronized double average() {
    return delegate.average();
  }

  @Override
  public synchronized Counter bottomN(int n) {
    return delegate.bottomN(n);
  }

  @Override
  public synchronized void clear() {
    delegate.clear();
  }

  @Override
  public synchronized boolean contains(TYPE item) {
    return delegate.contains(item);
  }

  @Override
  public synchronized Collection counts() {
    return delegate.counts();
  }

  @Override
  public synchronized Counter decrement(TYPE item) {
    return delegate.decrement(item);
  }

  @Override
  public synchronized Counter decrement(TYPE item, double amount) {
    return delegate.decrement(item, amount);
  }

  @Override
  public synchronized Counter decrementAll(Iterable iterable) {
    return delegate.decrementAll(iterable);
  }

  @Override
  public synchronized Counter decrementAll(Iterable iterable, double amount) {
    return delegate.decrementAll(iterable, amount);
  }

  @Override
  public synchronized Counter divideBySum() {
    return delegate.divideBySum();
  }

  @Override
  public synchronized double get(TYPE item) {
    return delegate.get(item);
  }

  @Override
  public synchronized Counter increment(TYPE item) {
    return delegate.increment(item);
  }

  @Override
  public synchronized Counter increment(TYPE item, double amount) {
    return delegate.increment(item, amount);
  }

  @Override
  public synchronized Counter incrementAll(Iterable iterable) {
    return delegate.incrementAll(iterable);
  }

  @Override
  public synchronized Counter incrementAll(Iterable iterable, double amount) {
    return delegate.incrementAll(iterable, amount);
  }

  @Override
  public synchronized boolean isEmpty() {
    return delegate.isEmpty();
  }

  @Override
  public synchronized Set items() {
    return delegate.items();
  }

  @Override
  public synchronized List itemsByCount(boolean ascending) {
    return delegate.itemsByCount(ascending);
  }

  @Override
  public synchronized Set> entries() {
    return delegate.entries();
  }

  @Override
  public synchronized double magnitude() {
    return delegate.magnitude();
  }

  @Override
  public synchronized TYPE max() {
    return delegate.max();
  }

  @Override
  public synchronized double maximumCount() {
    return delegate.maximumCount();
  }

  @Override
  public synchronized Counter merge(Counter other) {
    return delegate.merge(other);
  }

  @Override
  public synchronized Counter merge(Map other) {
    return delegate.merge(other);
  }

  @Override
  public synchronized TYPE min() {
    return delegate.min();
  }

  @Override
  public synchronized double minimumCount() {
    return delegate.minimumCount();
  }

  @Override
  public synchronized double remove(TYPE item) {
    return delegate.remove(item);
  }

  @Override
  public synchronized Counter removeAll(Iterable items) {
    return delegate.removeAll(items);
  }

  @Override
  public synchronized Counter removeZeroCounts() {
    return delegate.removeZeroCounts();
  }

  @Override
  public synchronized TYPE sample() {
    return delegate.sample();
  }

  @Override
  public synchronized Counter set(TYPE item, double count) {
    return delegate.set(item, count);
  }

  @Override
  public synchronized int size() {
    return delegate.size();
  }

  @Override
  public synchronized double standardDeviation() {
    return delegate.standardDeviation();
  }

  @Override
  public synchronized double sum() {
    return delegate.sum();
  }

  @Override
  public synchronized double sumOfSquares() {
    return delegate.sumOfSquares();
  }

  @Override
  public synchronized Counter topN(int n) {
    return delegate.topN(n);
  }

  @Override
  public synchronized Counter filterByKey(@NonNull Predicate predicate) {
    return delegate.filterByKey(predicate);
  }

  @Override
  public synchronized Counter filterByValue(@NonNull DoublePredicate doublePredicate) {
    return delegate.filterByValue(doublePredicate);
  }

  @Override
  public Counter copy() {
    return Counters.synchronizedCounter(delegate.copy());
  }

  @Override
  public String toString() {
    return delegate.toString();
  }

  @Override
  public int hashCode() {
    return delegate.hashCode();
  }

  @Override
  public synchronized boolean equals(Object object) {
    return delegate.equals(object);
  }
}//END OF ForwardingCounter