org.apache.hudi.sql.InsertMode Maven / Gradle / Ivy
/*
* 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.hudi.sql;
import java.util.Locale;
/**
* Insert mode for insert into pk-table.
*/
public enum InsertMode {
/**
* In upsert mode for insert into, duplicate record on primary key
* will be updated.This is the default insert mode for pk-table.
*/
UPSERT("upsert"),
/**
* In strict mode for insert into, we do the pk uniqueness guarantee
* for COW pk-table.
* For MOR pk-table, it has the same behavior with "upsert" mode.
*/
STRICT("strict"),
/**
* In non-strict mode for insert into, we use insert operation
* to write data which allow writing the duplicate record.
*/
NON_STRICT("non-strict")
;
private String value;
InsertMode(String value) {
this.value = value;
}
public String value() {
return value;
}
public static InsertMode of(String value) {
switch (value.toLowerCase(Locale.ROOT)) {
case "upsert":
return UPSERT;
case "strict":
return STRICT;
case "non-strict":
return NON_STRICT;
default:
throw new AssertionError("UnSupport Insert Mode: " + value);
}
}
}