org.apache.kafka.streams.kstream.internals.KTableKTableAbstractJoinValueGetterSupplier Maven / Gradle / Ivy
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* 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
*
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package org.apache.kafka.streams.kstream.internals;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
public abstract class KTableKTableAbstractJoinValueGetterSupplier implements KTableValueGetterSupplier {
final KTableValueGetterSupplier valueGetterSupplier1;
final KTableValueGetterSupplier valueGetterSupplier2;
KTableKTableAbstractJoinValueGetterSupplier(final KTableValueGetterSupplier valueGetterSupplier1,
final KTableValueGetterSupplier valueGetterSupplier2) {
this.valueGetterSupplier1 = valueGetterSupplier1;
this.valueGetterSupplier2 = valueGetterSupplier2;
}
@Override
public String[] storeNames() {
final String[] storeNames1 = valueGetterSupplier1.storeNames();
final String[] storeNames2 = valueGetterSupplier2.storeNames();
final Set stores = new HashSet<>(storeNames1.length + storeNames2.length);
Collections.addAll(stores, storeNames1);
Collections.addAll(stores, storeNames2);
return stores.toArray(new String[stores.size()]);
}
}