AbstractUpdateListener (BarbelHisto java library 2.0 API)

java.lang.Object
- org.projectbarbel.histo.extension.AbstractUpdateListener<R,T>

Type Parameters:

R - data resource to access

T - document type to store

All Implemented Interfaces:

UpdateListenerProtocol<R,T>

Direct Known Subclasses:

DefaultUpdateListener
```
public abstract class AbstractUpdateListener<R,T>
extends Object
implements UpdateListenerProtocol<R,T>
```
Mongo shadow update listener implementation to synchronize BarbelHisto backbone updates to external data source.

Author:

Niklas Schlimm

Field Summary

Fields
Modifier and Type	Field	Description
`protected String`	`documentIdFieldName`
`protected com.google.gson.Gson`	`gson`
`protected Class<?>`	`managedType`
`protected BarbelMode`	`mode`
`protected Class<? extends Bitemporal>`	`persistedType`
`protected R`	`shadow`
`protected static String`	`VERSION_ID`
`protected String`	`versionIdFieldName`

Constructor Summary

Constructors
Constructor Description

AbstractUpdateListener(Class<?> managedType, com.google.gson.Gson gson)

Method Summary

Modifier and Type	Method	Description
`abstract T`	`fromPersistenceObjectJsonToStoredDocument(String json)`
`Bitemporal`	`fromStoredDocumentToPersistenceObject(T document)`
`abstract String`	`fromStroredDocumentToPersistenceObjectJson(T document)`
`void`	`handleInitialization(EventType.BarbelInitializedEvent event)`
`void`	`handleLoadOperation(EventType.OnLoadOperationEvent event)`
`void`	`handleUnLoadOperation(EventType.UnLoadOperationEvent event)`
`void`	`handleUpdate(EventType.UpdateFinishedEvent event)`

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

Methods inherited from interface org.projectbarbel.histo.extension.UpdateListenerProtocol
delete, deleteJournal, getExternalDataResource, insertDocuments, queryJournal

Field Detail

VERSION_ID

protected static final String VERSION_ID

See Also:: Constant Field Values

shadow
```
protected R shadow
```

mode
```
protected final BarbelMode mode
```

gson

protected final com.google.gson.Gson gson

versionIdFieldName
```
protected String versionIdFieldName
```

managedType
```
protected final Class<?> managedType
```

documentIdFieldName

protected final String documentIdFieldName

persistedType

protected final Class<? extends Bitemporal> persistedType

Constructor Detail

AbstractUpdateListener

public AbstractUpdateListener(Class<?> managedType,
                              com.google.gson.Gson gson)

Method Detail
- handleInitialization
```
public void handleInitialization(EventType.BarbelInitializedEvent event)
```
  Specified by:
  
  handleInitialization in interface UpdateListenerProtocol<R,T>
- handleLoadOperation
```
public void handleLoadOperation(EventType.OnLoadOperationEvent event)
```
  Specified by:
  
  handleLoadOperation in interface UpdateListenerProtocol<R,T>
- handleUnLoadOperation
```
public void handleUnLoadOperation(EventType.UnLoadOperationEvent event)
```
  Specified by:
  
  handleUnLoadOperation in interface UpdateListenerProtocol<R,T>
- handleUpdate
```
public void handleUpdate(EventType.UpdateFinishedEvent event)
```
  Specified by:
  
  handleUpdate in interface UpdateListenerProtocol<R,T>
- fromStoredDocumentToPersistenceObject
```
public Bitemporal fromStoredDocumentToPersistenceObject(T document)
```
  Specified by:
  
  fromStoredDocumentToPersistenceObject in interface UpdateListenerProtocol<R,T>
- fromStroredDocumentToPersistenceObjectJson
```
public abstract String fromStroredDocumentToPersistenceObjectJson(T document)
```
- fromPersistenceObjectJsonToStoredDocument
```
public abstract T fromPersistenceObjectJsonToStoredDocument(String json)
```