modules/storage-api/src/main/java/org/apache/ignite/internal/storage/DataRow.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.internal.storage;

import java.nio.ByteBuffer;
import org.jetbrains.annotations.Nullable;

/**
 * Interface that represents a data row from the storage - a key-value pair. Can be used as a {@link SearchRow}.
 */
public interface DataRow extends SearchRow {
    /**
     * @return Value bytes.
     */
    byte @Nullable [] valueBytes();

    /**
     * @return Value object as a byte buffer. Allows more effective memory management in certain cases.
     */
    ByteBuffer value();

    /**
     * @return {@code true} if this row has a value.
     */
    boolean hasValueBytes();
}