FieldGroup.CommitHandler (vaadin-all 7.7.46 API)

All Superinterfaces:

Serializable

Enclosing class:

FieldGroup
```
public static interface FieldGroup.CommitHandler
extends Serializable
```
CommitHandlers are used by FieldGroup.commit() as part of the commit transactions. CommitHandlers can perform custom operations as part of the commit and cause the commit to be aborted by throwing a FieldGroup.CommitException.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`postCommit(FieldGroup.CommitEvent commitEvent)`	Called after changes are committed to the fields and the item is updated.
`void`	`preCommit(FieldGroup.CommitEvent commitEvent)`	Called before changes are committed to the field and the item is updated.

- Method Detail
  - preCommit
```
void preCommit(FieldGroup.CommitEvent commitEvent)
        throws FieldGroup.CommitException
```
    Called before changes are committed to the field and the item is updated.
    Throw a FieldGroup.CommitException to abort the commit.
    
    Parameters:
    
    commitEvent - An event containing information regarding the commit
    
    Throws:
    
    FieldGroup.CommitException - if the commit should be aborted
  - postCommit
```
void postCommit(FieldGroup.CommitEvent commitEvent)
         throws FieldGroup.CommitException
```
    Called after changes are committed to the fields and the item is updated.
    Throw a FieldGroup.CommitException to abort the commit.
    
    Parameters:
    
    commitEvent - An event containing information regarding the commit
    
    Throws:
    
    FieldGroup.CommitException - if the commit should be aborted