io.trino.operator.exchange.LocalExchanger Maven / Gradle / Ivy
/*
* 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 io.trino.operator.exchange;
import com.google.common.util.concurrent.ListenableFuture;
import io.trino.spi.Page;
import static io.trino.operator.Operator.NOT_BLOCKED;
public interface LocalExchanger
{
LocalExchanger FINISHED = new LocalExchanger()
{
@Override
public void accept(Page page) {}
@Override
public ListenableFuture waitForWriting()
{
return NOT_BLOCKED;
}
};
void accept(Page page);
ListenableFuture waitForWriting();
default void finish() {}
}