[jira] [Updated] (HBASE-24602) Add Increment and Append support to CheckAndMutate

["Toshihiro Suzuki (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-24602?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Toshihiro Suzuki updated HBASE-24602:
-------------------------------------
    Release Note: 
Summary of the change of HBASE-24602:
- Add build(Increment) and build(Append) methods to the Builder class of the CheckAndMutate class. After this change, we can perform checkAndIncrement/Append operation as follows:
```
// Build a CheckAndMutate object with a Increment object
CheckAndMutate checkAndMutate = CheckAndMutate.newBuilder(row)
  .ifEquals(family, qualifier, value)
  .build(increment);

// Perform a CheckAndIncrement operation
CheckAndMutateResult checkAndMutateResult = table.checkAndMutate(checkAndMutate);

// Get whether or not the CheckAndIncrement operation is successful
boolean success = checkAndMutateResult.isSuccess();

// Get the result of the increment operation
Result result = checkAndMutateResult.getResult();
```

- After this change, HRegion.batchMutate() is used for increment/append operations.

- As the side effect of the above change, the following coprocessor methods of RegionObserver are called when increment/append operations are performed:
  - preBatchMutate()
  - postBatchMutate()
  - postBatchMutateIndispensably()

> Add Increment and Append support to CheckAndMutate
> --------------------------------------------------
>
>                 Key: HBASE-24602
>                 URL: https://issues.apache.org/jira/browse/HBASE-24602
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Toshihiro Suzuki
>            Assignee: Toshihiro Suzuki
>            Priority: Major
>             Fix For: 3.0.0-alpha-1, 2.4.0
>
>
> Currently, CheckAndMutate supports only Put and Delete. Supporting Increment and Append would be helpful for some use cases.



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