flink-libraries/flink-table-common/src/main/java/org/apache/flink/table/api/types/DateType.java

/*
 * 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 org.apache.flink.table.api.types;

/**
 * Sql date type.
 */
public class DateType extends AtomicType {

	public static final DateType DATE = new DateType(0, "DateType");
	public static final DateType INTERVAL_MONTHS = new DateType(1, "IntervalMonths");

	private int id;
	private String name;

	private DateType(int id, String name) {
		this.id = id;
		this.name = name;
	}

	@Override
	public boolean equals(Object o) {
		return super.equals(o) && id == ((DateType) o).id;
	}

	@Override
	public int hashCode() {
		int result = super.hashCode();
		result = 31 * result + name.hashCode();
		return result;
	}

	@Override
	public String toString() {
		return name;
	}
}