StatementCallback (aSQL-common 1.0.2 API)

Type Parameters:

T - The result type
```
public interface StatementCallback<T>
```
Represents a callback interface for SQL statements. It can execute multiple operations on a single Statement.

See Also:

DataTemplate.execute(StatementCallback)

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  T doInStatement(Statement statement)
  Gets called by DataTemplate.execute.

- Method Detail
  - doInStatement
```
T doInStatement(Statement statement)
         throws SQLException
```
    Gets called by DataTemplate.execute. Implementations of this method should not worry about handling exceptions: they will be handled by aSQL DataTemplate and passed to CompletableFuture for further analysis by the user.
    ATTENTION: any ResultSet should be closed within this callback implementation. This method doesn't imply that the ResultSet (as other resources) will be closed. Still, this method should grant (as shown in DataTemplate various implementations) that the statement will be closed at the end of the operations.
    
    Parameters:
    
    statement - an active statement
    
    Returns:
    
    a result of the statement execution. Null if no results are available
    
    Throws:
    
    SQLException - if thrown by a DataTemplate method. Then, it will be inserted into the CompletableFuture
    
    See Also:
    
    DataTemplate.update(String, boolean), DataTemplate.query(String, ResultSetExtractor)