org.apache.hadoop.hive.ql.ddl.table.AlterTableAnalyzerCategory Maven / Gradle / Ivy
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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,
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package org.apache.hadoop.hive.ql.ddl.table;
import org.apache.hadoop.hive.ql.ddl.DDLSemanticAnalyzerFactory.DDLSemanticAnalyzerCategory;
import org.apache.hadoop.hive.ql.ddl.DDLSemanticAnalyzerFactory.DDLType;
import org.apache.hadoop.hive.ql.parse.ASTNode;
import org.apache.hadoop.hive.ql.parse.HiveParser;
/**
* Alter Table category helper. It derives the actual type of the command from the root element, by selecting the type
* of the second child, as the Alter Table commands have this structure: tableName command partitionSpec?
*/
@DDLType(types = HiveParser.TOK_ALTERTABLE)
public class AlterTableAnalyzerCategory implements DDLSemanticAnalyzerCategory {
@Override
public int getType(ASTNode root) {
return root.getChild(1).getType();
}
}