QueryExplanation.java

/*
 * 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.facebook.presto.util;

import com.facebook.presto.execution.Input;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.collect.ImmutableList;

import javax.annotation.concurrent.Immutable;

import java.util.List;

import static java.util.Objects.requireNonNull;

@Immutable
public class QueryExplanation
{
    private final List<Input> inputs;

    public QueryExplanation(List<Input> inputs)
    {
        this.inputs = ImmutableList.copyOf(requireNonNull(inputs, "inputs is null"));
    }

    @JsonProperty
    public List<Input> getInputs()
    {
        return inputs;
    }
}