org.apache.hadoop.hive.metastore.messaging.InsertMessage 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
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* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
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*/
package org.apache.hadoop.hive.metastore.messaging;
import org.apache.hadoop.hive.metastore.api.Partition;
import org.apache.hadoop.hive.metastore.api.Table;
/**
* HCat message sent when an insert is done to a table or partition.
*/
public abstract class InsertMessage extends EventMessage {
protected InsertMessage() {
super(EventType.INSERT);
}
/**
* Getter for the name of the table being insert into.
* @return Table-name (String).
*/
public abstract String getTable();
public abstract String getTableType();
/**
* Getter for the replace flag being insert into/overwrite
* @return Replace flag to represent INSERT INTO or INSERT OVERWRITE (Boolean).
*/
public abstract boolean isReplace();
/**
* Get list of file name and checksum created as a result of this DML operation
*
* @return The iterable of files
*/
public abstract Iterable getFiles();
/**
* Get the table object associated with the insert
*
* @return The Json format of Table object
*/
public abstract Table getTableObj() throws Exception;
/**
* Get the partition object associated with the insert
*
* @return The Json format of Partition object if the table is partitioned else return null.
*/
public abstract Partition getPtnObj() throws Exception;
@Override
public EventMessage checkValid() {
if (getTable() == null)
throw new IllegalStateException("Table name unset.");
return super.checkValid();
}
}