com.hazelcast.org.apache.calcite.interpreter.CollectNode Maven / Gradle / Ivy
/*
* 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 com.hazelcast.org.apache.calcite.interpreter;
import com.hazelcast.org.apache.calcite.rel.core.Collect;
import com.hazelcast.com.google.common.collect.ImmutableList;
import java.util.ArrayList;
import java.util.List;
/**
* Interpreter node that implements a
* {@link com.hazelcast.org.apache.calcite.rel.core.Collect}.
*/
public class CollectNode extends AbstractSingleNode {
public CollectNode(Compiler compiler, Collect rel) {
super(compiler, rel);
}
@Override public void run() throws InterruptedException {
Row row;
List values = new ArrayList<>();
while ((row = source.receive()) != null) {
values.add(row.getValues());
}
row = Row.of(ImmutableList.copyOf(values));
sink.send(row);
}
}