org.apache.hadoop.hive.ql.ddl.DDLDesc Maven / Gradle / Ivy
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* to you under the Apache License, Version 2.0 (the
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*
* http://www.apache.org/licenses/LICENSE-2.0
*
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package org.apache.hadoop.hive.ql.ddl;
/**
* Marker interface for all DDL operation descriptors.
*/
public interface DDLDesc {
/**
* DDL Desc for operation which needs write id.
*/
interface DDLDescWithWriteId extends DDLDesc {
void setWriteId(long writeId);
String getFullTableName();
// We have to advance the Write Id during DDL for transactional tables, so that
// we can provide strong consistency when serving the metadata from the cache.
// Override this method, only if you are sure that advancing the write Id is not required for your DDL.
default boolean mayNeedWriteId() {
return true;
}
}
}