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## org.jivesoftware.openfire.pubsub
Class PubSubPersistenceManager

    java.lang.Object
      org.jivesoftware.openfire.pubsub.PubSubPersistenceManager

    public class PubSubPersistenceManager

extends Object

A manager responsible for ensuring node persistence.

Author:
  Matt Tucker

Constructor Summary
`PubSubPersistenceManager()`

Method Summary
`static void` | `createDefaultConfiguration(PubSubService service, DefaultNodeConfiguration config)` Creates a new default node configuration for the specified service.
`static void` | `createNode(Node node)` Creates and stores the node configuration in the database.
`static void` | `flushPendingItems()` Flush the cache(s) of items to be persisted (itemsToAdd) and deleted (itemsToDelete).
`static void` | `flushPendingItems(boolean sendToCluster)` Flush the cache(s) of items to be persisted (itemsToAdd) and deleted (itemsToDelete).
`static PublishedItem` | `getLastPublishedItem(LeafNode node)` Fetches the last published item for the specified node.
`static PublishedItem` | `getPublishedItem(LeafNode node, String itemID)`
`static List<PublishedItem>` | `getPublishedItems(LeafNode node)` Fetches all the results for the specified node, limited by `LeafNode.getMaxPublishedItems()`.
`static List<PublishedItem>` | `getPublishedItems(LeafNode node, int maxRows)` Fetches all the results for the specified node, limited by `LeafNode.getMaxPublishedItems()`.
`static DefaultNodeConfiguration` | `loadDefaultConfiguration(PubSubService service, boolean isLeafType)` Loads from the database the default node configuration for the specified node type and pubsub service.
`static void` | `loadNode(PubSubService service, String nodeId)` Loads all nodes from the database and adds them to the PubSub service.
`static void` | `loadNodes(PubSubService service)` Loads all nodes from the database and adds them to the PubSub service.
`static void` | `loadSubscription(PubSubService service, Node node, String subId)`
`static void` | `purgeNode(LeafNode leafNode)`
`static void` | `removeAffiliation(Node node, NodeAffiliate affiliate)` Removes the affiliation and subsription state of the user from the DB.
`static boolean` | `removeNode(Node node)` Removes the specified node from the DB.
`static void` | `removePublishedItem(PublishedItem item)` Removes the specified published item from the DB.
`static void` | `removeSubscription(NodeSubscription subscription)` Removes the subscription of the user from the DB.
`static void` | `saveAffiliation(Node node, NodeAffiliate affiliate, boolean create)` Update the DB with the new affiliation of the user in the node.
`static void` | `savePublishedItem(PublishedItem item)` Creates and stores the published item in the database.
`static void` | `saveSubscription(Node node, NodeSubscription subscription, boolean create)` Updates the DB with the new subsription of the user to the node.
`static void` | `shutdown()`
`static void` | `updateDefaultConfiguration(PubSubService service, DefaultNodeConfiguration config)` Updates the default node configuration for the specified service.
`static void` | `updateNode(Node node)` Updates the node configuration in the database.

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

Constructor Detail

### PubSubPersistenceManager

    public PubSubPersistenceManager()

Method Detail

### createNode

    public static void createNode(Node node)

  Creates and stores the node configuration in the database.

  Parameters:
    `node` - The newly created node.

### updateNode

    public static void updateNode(Node node)

  Updates the node configuration in the database.

  Parameters:
    `node` - The updated node.

### removeNode

    public static boolean removeNode(Node node)

  Removes the specified node from the DB.

  Parameters:
    `node` - The node that is being deleted.
  Returns:
    true If the operation was successful.

### loadNodes

    public static void loadNodes(PubSubService service)

  Loads all nodes from the database and adds them to the PubSub service.

  Parameters:
    `service` - the pubsub service that is hosting the nodes.

### loadNode

    public static void loadNode(PubSubService service,
                                String nodeId)

  Loads all nodes from the database and adds them to the PubSub service.

  Parameters:
    `service` - the pubsub service that is hosting the nodes.

### loadSubscription

    public static void loadSubscription(PubSubService service,
                                        Node node,
                                        String subId)

### saveAffiliation

    public static void saveAffiliation(Node node,
                                       NodeAffiliate affiliate,
                                       boolean create)

  Update the DB with the new affiliation of the user in the node.

  Parameters:
    `node` - The node where the affiliation of the user was updated.
    `affiliate` - The new affiliation of the user in the node.
    `create` - True if this is a new affiliate.

### removeAffiliation

    public static void removeAffiliation(Node node,
                                         NodeAffiliate affiliate)

  Removes the affiliation and subsription state of the user from the DB.

  Parameters:
    `node` - The node where the affiliation of the user was updated.
    `affiliate` - The existing affiliation and subsription state of the user in the node.

### saveSubscription

    public static void saveSubscription(Node node,
                                        NodeSubscription subscription,
                                        boolean create)

  Updates the DB with the new subsription of the user to the node.

  Parameters:
    `node` - The node where the user has subscribed to.
    `subscription` - The new subscription of the user to the node.
    `create` - True if this is a new affiliate.

### removeSubscription

    public static void removeSubscription(NodeSubscription subscription)

  Removes the subscription of the user from the DB.

  Parameters:
    `subscription` - The existing subsription of the user to the node.

### savePublishedItem

    public static void savePublishedItem(PublishedItem item)

  Creates and stores the published item in the database. Note that the item will be cached temporarily before being flushed asynchronously to the database. The write cache can be tuned using the following two properties:

         "xmpp.pubsub.flush.max" - maximum items in the cache (-1 to disable cache)
         "xmpp.pubsub.flush.timer" - number of seconds between cache flushes

  Parameters:
    `item` - The published item to save.

### flushPendingItems

    public static void flushPendingItems()

  Flush the cache(s) of items to be persisted (itemsToAdd) and deleted (itemsToDelete).

### flushPendingItems

    public static void flushPendingItems(boolean sendToCluster)

  Flush the cache(s) of items to be persisted (itemsToAdd) and deleted (itemsToDelete).

  Parameters:
    `sendToCluster` - If true, delegate to cluster members, otherwise local only

### removePublishedItem

    public static void removePublishedItem(PublishedItem item)

  Removes the specified published item from the DB.

  Parameters:
    `item` - The published item to delete.

### loadDefaultConfiguration

    public static DefaultNodeConfiguration loadDefaultConfiguration(PubSubService service,
                                                                    boolean isLeafType)

  Loads from the database the default node configuration for the specified node type and pubsub service.

  Parameters:
    `service` - the default node configuration used by this pubsub service.
    `isLeafType` - true if loading default configuration for leaf nodes.
  Returns:
    the loaded default node configuration for the specified node type and service or `null` if none was found.

### createDefaultConfiguration

    public static void createDefaultConfiguration(PubSubService service,
                                                  DefaultNodeConfiguration config)

  Creates a new default node configuration for the specified service.

  Parameters:
    `service` - the default node configuration used by this pubsub service.
    `config` - the default node configuration to create in the database.

### updateDefaultConfiguration

    public static void updateDefaultConfiguration(PubSubService service,
                                                  DefaultNodeConfiguration config)

  Updates the default node configuration for the specified service.

  Parameters:
    `service` - the default node configuration used by this pubsub service.
    `config` - the default node configuration to update in the database.

### getPublishedItems

    public static List<PublishedItem> getPublishedItems(LeafNode node)

  Fetches all the results for the specified node, limited by `LeafNode.getMaxPublishedItems()`.

  Parameters:
    `node` - the leaf node to load its published items.

### getPublishedItems

    public static List<PublishedItem> getPublishedItems(LeafNode node,
                                                        int maxRows)

  Fetches all the results for the specified node, limited by `LeafNode.getMaxPublishedItems()`.

  Parameters:
    `node` - the leaf node to load its published items.

### getLastPublishedItem

    public static PublishedItem getLastPublishedItem(LeafNode node)

  Fetches the last published item for the specified node.

  Parameters:
    `node` - the leaf node to load its last published items.

### getPublishedItem

    public static PublishedItem getPublishedItem(LeafNode node,
                                                 String itemID)

### purgeNode

    public static void purgeNode(LeafNode leafNode)

### shutdown

    public static void shutdown()

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