/**
* 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.hadoop.hive.metastore.messaging;
import java.util.Map;
/**
* 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();
/**
* 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 the map of partition keyvalues. Will be null if this insert is to a table and not a
* partition.
* @return Map of partition keyvalues, or null.
*/
public abstract Map<String,String> getPartitionKeyValues();
/**
* Get list of file name and checksum created as a result of this DML operation
*
* @return The iterable of files
*/
public abstract Iterable<String> getFiles();
@Override
public EventMessage checkValid() {
if (getTable() == null)
throw new IllegalStateException("Table name unset.");
return super.checkValid();
}
}