| /* |
| * 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.tajo.plan.logical; |
| |
| import com.google.common.base.Objects; |
| import org.apache.tajo.plan.PlanString; |
| import org.apache.tajo.schema.IdentifierUtil; |
| |
| public class CreateDatabaseNode extends LogicalNode implements Cloneable { |
| private String databaseName; |
| private boolean ifNotExists; |
| |
| public CreateDatabaseNode(int pid) { |
| super(pid, NodeType.CREATE_DATABASE); |
| } |
| |
| @Override |
| public int childNum() { |
| return 0; |
| } |
| |
| @Override |
| public LogicalNode getChild(int idx) { |
| return null; |
| } |
| |
| public void init(String databaseName, boolean ifNotExists) { |
| this.databaseName = databaseName; |
| this.ifNotExists = ifNotExists; |
| } |
| |
| public String getDatabaseName() { |
| return this.databaseName; |
| } |
| |
| public boolean isIfNotExists() { |
| return ifNotExists; |
| } |
| |
| @Override |
| public PlanString getPlanString() { |
| return new PlanString(this).appendTitle(ifNotExists ? " IF NOT EXISTS " : " ").appendTitle(databaseName); |
| } |
| |
| public int hashCode() { |
| return Objects.hashCode(databaseName, ifNotExists); |
| } |
| |
| public boolean equals(Object obj) { |
| if (obj instanceof CreateDatabaseNode) { |
| CreateDatabaseNode other = (CreateDatabaseNode) obj; |
| return super.equals(other) && this.databaseName.equals(other.databaseName) && ifNotExists == other.ifNotExists; |
| } else { |
| return false; |
| } |
| } |
| |
| @Override |
| public Object clone() throws CloneNotSupportedException { |
| CreateDatabaseNode newNode = (CreateDatabaseNode) super.clone(); |
| newNode.databaseName = databaseName; |
| newNode.ifNotExists = ifNotExists; |
| return newNode; |
| } |
| |
| @Override |
| public String toString() { |
| return "CREATE DATABASE " + (ifNotExists ? " IF NOT EXISTS " : "") |
| + IdentifierUtil.denormalizeIdentifier(databaseName); |
| } |
| |
| @Override |
| public void preOrder(LogicalNodeVisitor visitor) { |
| visitor.visit(this); |
| } |
| |
| @Override |
| public void postOrder(LogicalNodeVisitor visitor) { |
| visitor.visit(this); |
| } |
| } |