org.partiql.pig.domain.model.Arity.kt Maven / Gradle / Ivy

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The P.I.G. is a code generator for domain models such ASTs and execution plans.

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/*
 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * or in the "license" file accompanying this file. This file 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 org.partiql.pig.domain.model

/** Base class representing an element's arity. */
sealed class Arity {
    object Required : Arity()
    object Optional : Arity()
    data class Variadic(val minimumArity: Int) : Arity()
}