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/*
 * 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.client;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.base.Function;

import javax.annotation.concurrent.Immutable;

import static com.google.common.base.Preconditions.checkNotNull;

@Immutable
public class Column
{
    private final String name;
    private final String type;

    @JsonCreator
    public Column(@JsonProperty("name") String name, @JsonProperty("type") String type)
    {
        this.name = checkNotNull(name, "name is null");
        this.type = checkNotNull(type, "type is null");
    }

    @JsonProperty
    public String getName()
    {
        return name;
    }

    @JsonProperty
    public String getType()
    {
        return type;
    }

    public static Function nameGetter()
    {
        return new Function()
        {
            @Override
            public String apply(Column input)
            {
                return input.getName();
            }
        };
    }

    public static Function typeGetter()
    {
        return new Function()
        {
            @Override
            public String apply(Column input)
            {
                return input.getType();
            }
        };
    }
}