/*
 * Copyright (c) 2008-2021, 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.
 */

package com.hazelcast.jet.pipeline;

import javax.annotation.Nonnull;

/**
 * A finite source of data for a Jet pipeline. Finite sources are the only
 * kind that can be used to aggregate data without windowing.
 *
 * @see Sources source factory methods
 *
 * @param <T> the stream item type
 *
 * @since 3.0
 */
public interface BatchSource<T> {

    /**
     * Returns a descriptive name of this source.
     */
    @Nonnull
    String name();
}
