EvictAll.java

/*
 * Copyright (c) 2008-2014, Hazelcast, Inc. All Rights Reserved.
 *
 * 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
 *
 * 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.
 */

import com.hazelcast.core.Hazelcast;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.IMap;

public class EvictAll {

    public static void main(String[] args) {
        int numberOfKeysToLock = 4;
        int numberOfEntriesToAdd = 1000;

        HazelcastInstance node1 = Hazelcast.newHazelcastInstance();
        Hazelcast.newHazelcastInstance();

        IMap<Integer, Integer> map = node1.getMap(EvictAll.class.getCanonicalName());
        for (int i = 0; i < numberOfEntriesToAdd; i++) {
            map.put(i, i);
        }

        for (int i = 0; i < numberOfKeysToLock; i++) {
            map.lock(i);
        }

        // should keep locked keys and evict all others
        map.evictAll();

        System.out.printf("# After calling evictAll...\n");
        System.out.printf("# Expected map size\t: %d\n", numberOfKeysToLock);
        System.out.printf("# Actual map size\t: %d\n", map.size());

        Hazelcast.shutdownAll();
    }
}