org.apache.flink.table.operations.ddl.AlterDatabaseOperation Maven / Gradle / Ivy

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This module contains the Table/SQL API for writing table programs within the table ecosystem using the Java programming language.

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/*
 * 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.operations.ddl;

import org.apache.flink.table.catalog.CatalogDatabase;
import org.apache.flink.table.operations.Operation;
import org.apache.flink.table.operations.OperationUtils;

import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;

/**
 * Operation to describe a ALTER DATABASE statement.
 */
public class AlterDatabaseOperation implements AlterOperation {
	private final String catalogName;
	private final String databaseName;
	private final CatalogDatabase catalogDatabase;

	public AlterDatabaseOperation(
			String catalogName,
			String databaseName,
			CatalogDatabase catalogDatabase) {
		this.catalogName = catalogName;
		this.databaseName = databaseName;
		this.catalogDatabase = catalogDatabase;
	}

	public String getCatalogName() {
		return catalogName;
	}

	public String getDatabaseName() {
		return databaseName;
	}

	public CatalogDatabase getCatalogDatabase() {
		return catalogDatabase;
	}

	@Override
	public String asSummaryString() {
		Map params = new LinkedHashMap<>();
		params.put("alterDatabase", catalogDatabase.getProperties());
		params.put("catalogName", catalogName);
		params.put("databaseName", databaseName);

		return OperationUtils.formatWithChildren(
			"ALTER DATABASE",
			params,
			Collections.emptyList(),
			Operation::asSummaryString);
	}
}