SelectForUpdateBasedTransaction (bucket4j-core 7.6.1 API)

```
public interface SelectForUpdateBasedTransaction
```
Describes the set of operations that AbstractSelectForUpdateBasedProxyManager typically performs in reaction to user request. The typical flow is following:
1. begin - begin()
2. lock - tryLockAndGet()
3. update - update(byte[], RemoteBucketState)
4. commit - commit()
5. release - release()

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`begin()`	Begins transaction if underlying storage requires transactions.
`void`	`commit()`	Commits transaction if underlying storage requires transactions
`void`	`release()`	Frees resources associated with this transaction
`void`	`rollback()`	Rollbacks transaction if underlying storage requires transactions
`boolean`	`tryInsertEmptyData()`	Creates empty data by for the key associated with this transaction.
`LockAndGetResult`	`tryLockAndGet()`	Locks data by the key associated with this transaction and returns data that is associated with the key.
`void`	`update(byte[] data, RemoteBucketState newState)`	Updates the data by the key associated with this transaction.

- Method Detail
  - begin
```
void begin()
```
    Begins transaction if underlying storage requires transactions. There is strong guarantee that commit() or rollback() will be called if begin() returns successfully.
  - rollback
```
void rollback()
```
    Rollbacks transaction if underlying storage requires transactions
  - commit
```
void commit()
```
    Commits transaction if underlying storage requires transactions
  - tryLockAndGet
```
LockAndGetResult tryLockAndGet()
```
    Locks data by the key associated with this transaction and returns data that is associated with the key.
    
    Returns:
    
    the data by the key associated with this transaction, or null data associated with key does not exist
  - tryInsertEmptyData
```
boolean tryInsertEmptyData()
```
    Creates empty data by for the key associated with this transaction. This operation is required to be able to lock data in the scope of next transaction.
    
    Returns:
    
    true if data has been inserted
  - update
```
void update(byte[] data,
            RemoteBucketState newState)
```
    Updates the data by the key associated with this transaction.
    
    Parameters:
    
    data - bucket state to persists
    
    newState - new state of bucket - can be used to extract additional data is useful for persistence or logging.
  - release
```
void release()
```
    Frees resources associated with this transaction