Package org.jivesoftware.openfire.pubsub

Class CollectionNode

java.lang.Object

org.jivesoftware.openfire.pubsub.Node

org.jivesoftware.openfire.pubsub.CollectionNode

All Implemented Interfaces:

Externalizable, Serializable, Cacheable

public class CollectionNode
extends Node

A type of node that contains nodes and/or other collections but no published items. Collections provide the foundation entity to provide a means of representing hierarchical node structures.

Author:

Matt Tucker

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	CollectionNode.LeafNodeAssociationPolicy	Policy that defines who may associate leaf nodes with a collection.

Nested classes/interfaces inherited from class org.jivesoftware.openfire.pubsub.Node

Node.ItemReplyPolicy, Node.UniqueIdentifier

Field Summary

Fields inherited from class org.jivesoftware.openfire.pubsub.Node

accessModel, affiliates, bodyXSLT, contacts, creationDate, creator, dataformXSLT, deliverPayloads, description, language, name, nodeID, notifyConfigChanges, notifyDelete, notifyRetract, parentIdentifier, payloadType, presenceBasedDelivery, publisherModel, replyPolicy, replyRooms, replyTo, rosterGroupsAllowed, serviceIdentifier, subscriptionConfigurationRequired, subscriptionEnabled, subscriptionsByID, subscriptionsByJID

Constructor Summary

Constructors

Constructor	Description
CollectionNode()
CollectionNode(PubSubService.UniqueIdentifier serviceId, CollectionNode parentNode, String nodeID, org.xmpp.packet.JID creator, boolean subscriptionEnabled, boolean deliverPayloads, boolean notifyConfigChanges, boolean notifyDelete, boolean notifyRetract, boolean presenceBasedDelivery, AccessModel accessModel, PublisherModel publisherModel, String language, Node.ItemReplyPolicy replyPolicy, CollectionNode.LeafNodeAssociationPolicy associationPolicy, int maxLeafNodes)
CollectionNode(PubSubService.UniqueIdentifier serviceId, CollectionNode parentNode, String nodeID, org.xmpp.packet.JID creator, DefaultNodeConfiguration defaultConfiguration)

Method Summary

Modifier and Type	Method	Description
protected void	addFormFields(org.xmpp.forms.DataForm form, Locale preferredLocale, boolean isEditing)	Adds the required form fields to the specified form.
protected void	configure(org.xmpp.forms.FormField field)	Configures the node with the completed form field.
protected void	deletingNode()	Notification message indicating that the node is being deleted.
CollectionNode.LeafNodeAssociationPolicy	getAssociationPolicy()	Returns the policy that defines who may associate leaf nodes with a collection.
Collection<org.xmpp.packet.JID>	getAssociationTrusted()	Returns the users that are allowed to associate leaf nodes with this collection node.
int	getCachedSize()	Returns the approximate size of the Object in bytes.
protected org.slf4j.Logger	getLogger()
int	getMaxLeafNodes()	Returns the max number of leaf nodes that this collection node might have.
Collection<Node>	getNodes()	Returns the list of nodes contained by this node.
boolean	isAssociationAllowed(org.xmpp.packet.JID user)	Returns true if the specified user is allowed to associate a leaf node with this node.
boolean	isChildNode(Node child)	Returns true if the specified node is a first-level children of this collection node.
boolean	isCollectionNode()	Returns true if this node is a node container.
boolean	isDescendantNode(Node child)	Returns true if the specified node is a direct child node of this collection node or a descendant of the children nodes.
boolean	isMaxLeafNodeReached()	Returns true if the max number of leaf nodes associated with this node has reached to the maximum allowed.
void	readExternal(ObjectInput in)
void	writeExternal(ObjectOutput out)

Methods inherited from class org.jivesoftware.openfire.pubsub.Node

addAffiliate, addNoneAffiliation, addOutcast, addOwner, addPublisher, addSubscription, approveSubscription, broadcastNodeEvent, cancelSubscription, cancelSubscription, changeParent, configure, createSubscription, delete, equals, getAccessModel, getAffiliate, getAllAffiliates, getAllSubscriptions, getBodyXSLT, getConfigurationForm, getContacts, getCreationDate, getCreator, getDataformXSLT, getDescription, getLanguage, getLastPublishedItem, getMetadataForm, getModificationDate, getName, getNodeID, getOwners, getParent, getParents, getPayloadType, getPendingSubscriptions, getPublishedItem, getPublishedItems, getPublishedItems, getPublisherModel, getPublishers, getReplyPolicy, getReplyRooms, getReplyTo, getRosterGroupsAllowed, getService, getSubscription, getSubscription, getSubscriptions, getUniqueIdentifier, hashCode, isAdmin, isMultipleSubscriptionsEnabled, isNotifiedOfConfigChanges, isNotifiedOfDelete, isNotifiedOfRetract, isPayloadDelivered, isPresenceBasedDelivery, isPresenceBasedDelivery, isRootCollectionNode, isSendItemSubscribe, isSubscriptionConfigurationRequired, isSubscriptionEnabled, removeOutcast, removeOwner, removePublisher, saveToDB, sendEventNotification, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

CollectionNode

public CollectionNode(PubSubService.UniqueIdentifier serviceId,
 CollectionNode parentNode,
 String nodeID,
 org.xmpp.packet.JID creator,
 boolean subscriptionEnabled,
 boolean deliverPayloads,
 boolean notifyConfigChanges,
 boolean notifyDelete,
 boolean notifyRetract,
 boolean presenceBasedDelivery,
 AccessModel accessModel,
 PublisherModel publisherModel,
 String language,
 Node.ItemReplyPolicy replyPolicy,
 CollectionNode.LeafNodeAssociationPolicy associationPolicy,
 int maxLeafNodes)

CollectionNode

public CollectionNode(PubSubService.UniqueIdentifier serviceId,
 CollectionNode parentNode,
 String nodeID,
 org.xmpp.packet.JID creator,
 DefaultNodeConfiguration defaultConfiguration)

CollectionNode

public CollectionNode()

Method Details

configure

protected void configure(org.xmpp.forms.FormField field)
                  throws NotAcceptableException

Description copied from class: Node

Configures the node with the completed form field. Fields that are common to leaf and collection nodes are handled in Node.configure(org.xmpp.forms.DataForm). Subclasses should implement this method in order to configure the node with form fields specific to the node type.

Specified by:

configure in class Node

Parameters:

field - the form field specific to the node type.

Throws:

NotAcceptableException - if field cannot be configured because of invalid data.

addFormFields

protected void addFormFields(org.xmpp.forms.DataForm form,
 Locale preferredLocale,
 boolean isEditing)

Description copied from class: Node

Adds the required form fields to the specified form. When editing is true the field type and a label is included in each field. The form being completed will contain the current node configuration. This information can be used for editing the node or for notifying that the node configuration has changed.

Overrides:

addFormFields in class Node

Parameters:

form - the form containing the node configuration.

preferredLocale - the preferred locale to localize the form.

isEditing - true when the form will be used to edit the node configuration.

deletingNode

protected void deletingNode()

Description copied from class: Node

Notification message indicating that the node is being deleted. Subclasses should implement this method to delete any subclass specific information.

Specified by:

deletingNode in class Node

isCollectionNode

public boolean isCollectionNode()

Description copied from class: Node

Returns true if this node is a node container. Node containers may only contain nodes but are not allowed to get items published.

Overrides:

isCollectionNode in class Node

Returns:

true if this node is a node container.

isChildNode

public boolean isChildNode(Node child)

Returns true if the specified node is a first-level children of this collection node.

Overrides:

isChildNode in class Node

Parameters:

child - the node to check if it is a direct child of this node.

Returns:

true if the specified node is a first-level children of this collection node.

isDescendantNode

public boolean isDescendantNode(Node child)

Returns true if the specified node is a direct child node of this collection node or a descendant of the children nodes.

Overrides:

isDescendantNode in class Node

Parameters:

child - the node to check if it is a descendant of this node.

Returns:

true if the specified node is a direct child node of this collection node or a descendant of the children nodes.

getNodes

public Collection<Node> getNodes()

Description copied from class: Node

Returns the list of nodes contained by this node. Only CollectionNode may contain other nodes.

Overrides:

getNodes in class Node

Returns:

the list of nodes contained by this node.

getAssociationPolicy

public CollectionNode.LeafNodeAssociationPolicy getAssociationPolicy()

Returns the policy that defines who may associate leaf nodes with a collection.

Returns:

the policy that defines who may associate leaf nodes with a collection.

getAssociationTrusted

public Collection<org.xmpp.packet.JID> getAssociationTrusted()

Returns the users that are allowed to associate leaf nodes with this collection node. This collection is going to be used only when the associationPolicy is whitelist.

Returns:

the users that are allowed to associate leaf nodes with this collection node.

getMaxLeafNodes

public int getMaxLeafNodes()

Returns the max number of leaf nodes that this collection node might have. A value of -1 means that there is no limit.

Returns:

the max number of leaf nodes that this collection node might have.

isAssociationAllowed

public boolean isAssociationAllowed(org.xmpp.packet.JID user)

Returns true if the specified user is allowed to associate a leaf node with this node. The decision is taken based on the association policy that the node is using.

Parameters:

user - the user trying to associate a leaf node with this node.

Returns:

true if the specified user is allowed to associate a leaf node with this node.

isMaxLeafNodeReached

public boolean isMaxLeafNodeReached()

Returns true if the max number of leaf nodes associated with this node has reached to the maximum allowed.

Returns:

true if the max number of leaf nodes associated with this node has reached to the maximum allowed.

getCachedSize

public int getCachedSize()
                  throws CannotCalculateSizeException

Description copied from interface: Cacheable

Returns the approximate size of the Object in bytes. The size should be considered to be a best estimate of how much memory the Object occupies and may be based on empirical trials or dynamic calculations.

Specified by:

getCachedSize in interface Cacheable

Overrides:

getCachedSize in class Node

Returns:

the size of the Object in bytes.

Throws:

CannotCalculateSizeException - if the size cannot be calculated

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Overrides:

writeExternal in class Node

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Overrides:

readExternal in class Node

Throws:

IOException

ClassNotFoundException

getLogger

protected org.slf4j.Logger getLogger()

Specified by:

getLogger in class Node