package com.github.dockerjava.api.model;

import com.fasterxml.jackson.annotation.JsonProperty;

import lombok.EqualsAndHashCode;

import java.io.Serializable;

/**

* @since {@link RemoteApiVersion#VERSION_1_24}

* The version number of the object such as node, service, etc. This is needed to avoid conflicting writes.

* The client must send the version number along with the modified specification when updating these objects.

* This approach ensures safe concurrency and determinism in that the change on the object may not be applied

* if the version number has changed from the last read. In other words, if two update requests specify the

* same base version, only one of the requests can succeed. As a result, two separate update requests that

* happen at the same time will not unintentionally overwrite each other.

*/

@EqualsAndHashCode

public class ObjectVersion extends DockerObject implements Serializable {

private static final long serialVersionUID = 1L;

@JsonProperty("Index")

private Long index = null;

public Long getIndex() {

return index;

}

public ObjectVersion withIndex(Long index) {

this.index = index;

return this;

}

@Override

public String toString() {

return String.valueOf(index);

}

}