AffinityUuid.java

/*
 * 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.ignite.cache.affinity;

import org.apache.ignite.internal.util.typedef.internal.S;
import org.apache.ignite.lang.IgniteUuid;

/**
 * Guaranteed unique affinity-based key.
 */
public class AffinityUuid extends AffinityKey<IgniteUuid> {
    /** */
    private static final long serialVersionUID = 0L;

    /**
     * Empty constructor.
     */
    public AffinityUuid() {
        // No-op.
    }

    /**
     * Constructs unique affinity UUID based on affinity key.
     *
     * @param affKey Affinity key to use for collocation.
     */
    public AffinityUuid(Object affKey) {
        super(IgniteUuid.randomUuid(), affKey);
    }

    /** {@inheritDoc} */
    @Override public String toString() {
        return S.toString(AffinityUuid.class, this);
    }
}