org.apache.jackrabbit.core.state
Interface ItemStateManager

All Known Subinterfaces:

UpdatableItemStateManager, VirtualItemStateProvider

All Known Implementing Classes:

AbstractVISProvider, LocalItemStateManager, SessionItemStateManager, SharedItemStateManager, XAVersionManager

public interface ItemStateManager

The ItemStateManager interface provides methods for retrieving ItemState and NodeReferences instances by id.

Method Summary

ItemState	getItemState(ItemId id) Return an item state, given its item id.
NodeReferences	getNodeReferences(NodeReferencesId id) Return a node references object, given its target id
boolean	hasItemState(ItemId id) Return a flag indicating whether an item state for a given item id exists.
boolean	hasNodeReferences(NodeReferencesId id) Return a flag indicating whether a node references object for a given target id exists.

Method Detail

getItemState

public ItemState getItemState(ItemId id)
                       throws NoSuchItemStateException,
                              ItemStateException

Return an item state, given its item id.

Parameters:

id - item id

Returns:

item state

Throws:

NoSuchItemStateException - if the item does not exist

ItemStateException - if an error occurs

hasItemState

public boolean hasItemState(ItemId id)

Return a flag indicating whether an item state for a given item id exists.

Parameters:

id - item id

Returns:

true if an item state exists, otherwise false

getNodeReferences

public NodeReferences getNodeReferences(NodeReferencesId id)
                                 throws NoSuchItemStateException,
                                        ItemStateException

Return a node references object, given its target id

Parameters:

id - target id

Returns:

node references object

Throws:

NoSuchItemStateException - if the item does not exist

ItemStateException - if an error occurs

hasNodeReferences

public boolean hasNodeReferences(NodeReferencesId id)

Return a flag indicating whether a node references object for a given target id exists.

Parameters:

id - target id

Returns:

true if a node reference object exists for the given id, otherwise false.