Package com.day.cq.replication

Class DefaultAggregateHandler

java.lang.Object

com.day.cq.replication.DefaultAggregateHandler

All Implemented Interfaces:

AggregateHandler

public class DefaultAggregateHandler
extends Object
implements AggregateHandler

Implements an aggregate handler that detects hierarchy nodes as aggregate root.

Constructor Summary

Constructors

Constructor	Description
DefaultAggregateHandler()

Method Summary

Modifier and Type	Method	Description
boolean	isAggregateRoot(Node node)	Checks if the given node is an aggregate root.
boolean	isRemoveNodes()	Checks if this handler removes the nodes in the processForReplication(javax.jcr.Session, ReplicationAction) for a delete replication.
List<String>	prepareForReplication(Session session, ReplicationActionType type, String path)	Returns a list of aggregate roots of the subtree starting at the specified path that are relevant for the given replication action.
void	processForReplication(Session session, ReplicationAction action)	Processes the aggregate addressed by the replication action.
void	setRemoveNodes(boolean removeNodes)	Sets the flag that controls if this handler should remove the node in the processForReplication(javax.jcr.Session, ReplicationAction).

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

DefaultAggregateHandler

public DefaultAggregateHandler()

Method Details

isRemoveNodes

public boolean isRemoveNodes()

Checks if this handler removes the nodes in the processForReplication(javax.jcr.Session, ReplicationAction) for a delete replication.

Returns:

the remove nodes flag.

setRemoveNodes

public void setRemoveNodes(boolean removeNodes)

Sets the flag that controls if this handler should remove the node in the processForReplication(javax.jcr.Session, ReplicationAction). the default is false.

Parameters:

removeNodes - the flag

isAggregateRoot

public boolean isAggregateRoot(Node node)

Checks if the given node is an aggregate root.

Specified by:

isAggregateRoot in interface AggregateHandler

Parameters:

node - node to test

Returns:

true if the node is a hierarchy node.

prepareForReplication

public List<String> prepareForReplication(Session session,
 ReplicationActionType type,
 String path)
                                   throws ReplicationException

Returns a list of aggregate roots of the subtree starting at the specified path that are relevant for the given replication action. The specified start path should be included in the list in any case. Returns the all aggregate roots that match isAggregateRoot(javax.jcr.Node) recursively, but only for DELETE and DEACTIVATE action types.

Specified by:

prepareForReplication in interface AggregateHandler

Parameters:

session - session to use for traversal

type - replication action type

path - start path

Returns:

a list of aggregate roots.

Throws:

ReplicationException - to abort the replication in the preparation stage

processForReplication

public void processForReplication(Session session,
 ReplicationAction action)
                           throws ReplicationException

Processes the aggregate addressed by the replication action. The aggregate handler may or may not save the changes. Deletes all paths passed by the action. but only for DELETE actions. The changes are not saved.

Specified by:

processForReplication in interface AggregateHandler

Parameters:

session - the session to use to process the content

action - the replication action

Throws:

ReplicationException - to abort the replication in the preparation stage