org.apache.hudi.common.model.WriteConcurrencyMode Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* 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,
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*/
package org.apache.hudi.common.model;
import org.apache.hudi.common.config.EnumDescription;
import org.apache.hudi.common.config.EnumFieldDescription;
/**
* Different concurrency modes for write operations.
*/
@EnumDescription("Concurrency modes for write operations.")
public enum WriteConcurrencyMode {
// Only a single writer can perform write ops
@EnumFieldDescription("Only one active writer to the table. Maximizes throughput.")
SINGLE_WRITER,
// Multiple writer can perform write ops with lazy conflict resolution using locks
@EnumFieldDescription("Multiple writers can operate on the table with lazy conflict resolution "
+ "using locks. This means that only one writer succeeds if multiple writers write to the "
+ "same file group.")
OPTIMISTIC_CONCURRENCY_CONTROL;
public boolean supportsOptimisticConcurrencyControl() {
return this == OPTIMISTIC_CONCURRENCY_CONTROL;
}
}