| /* |
| * 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.ignite.internal.sql.engine.sql; |
| |
| import java.util.List; |
| import org.apache.calcite.sql.SqlCall; |
| import org.apache.calcite.sql.SqlIdentifier; |
| import org.apache.calcite.sql.SqlKind; |
| import org.apache.calcite.sql.SqlLiteral; |
| import org.apache.calcite.sql.SqlNode; |
| import org.apache.calcite.sql.SqlWriter; |
| import org.apache.calcite.sql.parser.SqlParserPos; |
| import org.apache.calcite.util.ImmutableNullableList; |
| import org.checkerframework.checker.nullness.qual.Nullable; |
| |
| /** |
| * Parse tree for {@code ALTER ZONE SET DEFAULT} statement. |
| */ |
| public class IgniteSqlAlterZoneSetDefault extends IgniteAbstractSqlAlterZone { |
| |
| /** ALTER ZONE SET DEFAULT operator. */ |
| protected static class Operator extends IgniteDdlOperator { |
| |
| /** Constructor. */ |
| protected Operator(boolean existsFlag) { |
| super("ALTER ZONE", SqlKind.OTHER_DDL, existsFlag); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public SqlCall createCall(@Nullable SqlLiteral functionQualifier, SqlParserPos pos, @Nullable SqlNode... operands) { |
| return new IgniteSqlAlterZoneSetDefault(pos, (SqlIdentifier) operands[0], existFlag()); |
| } |
| } |
| |
| /** Constructor. */ |
| public IgniteSqlAlterZoneSetDefault(SqlParserPos pos, SqlIdentifier name, boolean ifExists) { |
| super(new Operator(ifExists), pos, name); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public List<SqlNode> getOperandList() { |
| return ImmutableNullableList.of(name); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| protected void unparseAlterZoneOperation(SqlWriter writer, int leftPrec, int rightPrec) { |
| writer.keyword("SET DEFAULT"); |
| } |
| } |