org.apache.hadoop.hive.ql.ddl.DDLOperation Maven / Gradle / Ivy
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* 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
*
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package org.apache.hadoop.hive.ql.ddl;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Abstract ancestor class of all DDL Operation classes.
*
* A class that is extending this abstract class, and which is under the org.apache.hadoop.hive.ql.ddl package
* will be registered automatically as the operation for it's generic DDLDesc argument.
*/
public abstract class DDLOperation {
protected static final Logger LOG = LoggerFactory.getLogger("hive.ql.exec.DDLTask");
protected final DDLOperationContext context;
protected final T desc;
public DDLOperation(DDLOperationContext context, T desc) {
this.context = context;
this.desc = desc;
}
public abstract int execute() throws Exception;
}