// Copyright (c) 2003-present, Jodd Team (http://jodd.org)
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

package jodd.cache;

import java.util.Collections;
import java.util.Map;

/**
 * Simple no-cache implementations of {@link Cache} for situation when cache
 * needs to be quickly turned-off.
 */
public class NoCache<K, V> implements Cache<K, V> {


	public int limit() {
		return 0;
	}

	public long timeout() {
		return 0;
	}

	public void put(K key, V object) {
		// ignore
	}

	public void put(K key, V object, long timeout) {
		// ignore
	}

	public V get(K key) {
		return null;
	}

	public int prune() {
		return 0;
	}

	public boolean isFull() {
		return true;
	}

	public void remove(K key) {
		// ignore
	}

	public void clear() {
		// ignore
	}

	public int size() {
		return 0;
	}

	public boolean isEmpty() {
		return true;
	}

	@Override
	public Map<K, V> snapshot() {
		return Collections.emptyMap();
	}
}
