org.apache.kafka.streams.kstream.internals.KStreamKTableJoin Maven / Gradle / Ivy

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/*
 * 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.kafka.streams.kstream.internals;

import org.apache.kafka.streams.kstream.KeyValueMapper;
import org.apache.kafka.streams.kstream.ValueJoinerWithKey;

@SuppressWarnings("deprecation") // Old PAPI. Needs to be migrated.
class KStreamKTableJoin implements org.apache.kafka.streams.processor.ProcessorSupplier {

    private final KeyValueMapper keyValueMapper = (key, value) -> key;
    private final KTableValueGetterSupplier valueGetterSupplier;
    private final ValueJoinerWithKey joiner;
    private final boolean leftJoin;

    KStreamKTableJoin(final KTableValueGetterSupplier valueGetterSupplier,
                      final ValueJoinerWithKey joiner,
                      final boolean leftJoin) {
        this.valueGetterSupplier = valueGetterSupplier;
        this.joiner = joiner;
        this.leftJoin = leftJoin;
    }

    @Override
    public org.apache.kafka.streams.processor.Processor get() {
        return new KStreamKTableJoinProcessor<>(valueGetterSupplier.get(), keyValueMapper, joiner, leftJoin);
    }

}