/*
 * 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.internal.processors.cache.binary;

import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import org.apache.ignite.internal.processors.cache.GridCacheUtilityKey;
import org.apache.ignite.internal.util.typedef.internal.S;

/**
 * Key for binary meta data.
 */
public class BinaryMetadataKey extends GridCacheUtilityKey<BinaryMetadataKey> implements Externalizable {
    /** */
    private static final long serialVersionUID = 0L;

    /** */
    private int typeId;

    /**
     * For {@link Externalizable}.
     */
    public BinaryMetadataKey() {
        // No-op.
    }

    /**
     * @param typeId Type ID.
     */
    BinaryMetadataKey(int typeId) {
        this.typeId = typeId;
    }

    /**
     * @return Type id.
     */
    public int typeId() {
        return typeId;
    }

    /** {@inheritDoc} */
    @Override public void writeExternal(ObjectOutput out) throws IOException {
        out.writeInt(typeId);
    }

    /** {@inheritDoc} */
    @Override public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        typeId = in.readInt();
    }

    /** {@inheritDoc} */
    @Override protected boolean equalsx(BinaryMetadataKey key) {
        return typeId == key.typeId;
    }

    /** {@inheritDoc} */
    @Override public int hashCode() {
        return typeId;
    }

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