TransactionFilter (cayenne-doc: Cayenne Documentation 4.2.RC1 API)

java.lang.Object
- org.apache.cayenne.tx.TransactionFilter

All Implemented Interfaces:

DataChannelSyncFilter
```
public class TransactionFilter
extends Object
implements DataChannelSyncFilter
```
A DataChannelSyncFilter that provides transactions.

Since:

4.0

Field Summary

Fields
Modifier and Type Field Description

protected TransactionManager transactionManager

Constructor Summary

Constructors
Constructor Description

TransactionFilter()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`GraphDiff`	`onSync(ObjectContext originatingContext, GraphDiff changes, int syncType, DataChannelSyncFilterChain filterChain)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - transactionManager
```
protected TransactionManager transactionManager
```
- Constructor Detail
  - TransactionFilter
```
public TransactionFilter()
```
- Method Detail
  - onSync
```
public GraphDiff onSync(ObjectContext originatingContext,
                        GraphDiff changes,
                        int syncType,
                        DataChannelSyncFilterChain filterChain)
```
    Specified by:
    
    onSync in interface DataChannelSyncFilter
    
    Parameters:
    
    originatingContext - originating context of changes
    
    changes - diff that is being processed
    
    syncType - type of sync; possible values: DataChannel.FLUSH_NOCASCADE_SYNC, DataChannel.FLUSH_CASCADE_SYNC, DataChannel.ROLLBACK_CASCADE_SYNC
    
    filterChain - chain of sync filters to invoke after this filter
    
    Returns:
    
    final context diff
    
    See Also:
    
    DataChannel.FLUSH_NOCASCADE_SYNC, DataChannel.FLUSH_CASCADE_SYNC, DataChannel.ROLLBACK_CASCADE_SYNC