org.modeshape.jcr.cache

Interface CachedNode

All Known Subinterfaces:

MutableCachedNode

All Known Implementing Classes:

LazyCachedNode, SessionNode

public interface CachedNode

A representation of a node as stored within the cache.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	CachedNode.ReferenceType

Method Summary

Methods

Modifier and Type	Method and Description
Set<NodeKey>	getAdditionalParentKeys(NodeCache cache) Get the keys for all of the nodes (other than the primary parent) under which this node appears.
ChildReferences	getChildReferences(NodeCache cache) Get the set of child references for this node.
NodeKey	getKey() Get the key for the node.
Set<Name>	getMixinTypes(NodeCache cache) Get the set of mixin types for this node.
Name	getName(NodeCache cache) Get the name for this node, without any same-name-sibiling (SNS) index.
NodeKey	getParentKey(NodeCache cache) Get the node key for this node's primary parent within this workspace.
NodeKey	getParentKeyInAnyWorkspace(NodeCache cache) Get the node key for this node's primary parent in any workspace.
Path	getPath(NodeCache cache) Get the path to this node.
Path	getPath(PathCache pathCache) Get the path to this node.
Name	getPrimaryType(NodeCache cache) Get the primary type for this node.
Iterator<Property>	getProperties(Collection<?> namePatterns, NodeCache cache) Get an iterator over all of the properties of this node that have names matching at least one of the supplied patterns.
Iterator<Property>	getProperties(NodeCache cache) Get an iterator over all of the node's properties.
Property	getProperty(Name name, NodeCache cache) Get the property with the given name.
int	getPropertyCount(NodeCache cache) Determine the number of properties that this node contains.
ReferrerCounts	getReferrerCounts(NodeCache cache) Get a snapshot of the referrers that have REFERENCE and/or WEAK_REFERENCE properties pointing to this node.
Set<NodeKey>	getReferrers(NodeCache cache, CachedNode.ReferenceType type) Get the keys of the nodes that have JCR REFERENCE and/or WEAK_REFERENCE properties pointing to this node.
Path.Segment	getSegment(NodeCache cache) Get the path segment for this node.
boolean	hasProperties(NodeCache cache) Determine if the node contains one or more properties.
boolean	hasProperty(Name name, NodeCache cache) Determine if the node contains a property with the specified name.
boolean	isAtOrBelow(NodeCache cache, Path path) Determine if this node is effectively at or below the supplied path.
boolean	isQueryable(NodeCache cache) Determine if this node should be indexed and therefore available for querying.

Method Detail

getKey

NodeKey getKey()

Get the key for the node.

Returns:

the node's key; never null

getName

Name getName(NodeCache cache)

Get the name for this node, without any same-name-sibiling (SNS) index.

Parameters:

cache - the cache to which this node belongs, required in case this node needs to use the cache; may not be null

Returns:

the name; never null, but the root node will have a zero-length name

Throws:

NodeNotFoundInParentException - if this node no longer exists inside the parent node (and perhaps in no other parent)

NodeNotFoundException - if this node no longer exists

See Also:

getSegment(NodeCache), getPath(NodeCache)

getSegment

Path.Segment getSegment(NodeCache cache)

Get the path segment for this node. The segment consists of a name and a same-name-sibling (SNS) index.

Parameters:

cache - the cache to which this node belongs, required in case this node needs to use the cache; may not be null

Returns:

the segment; never null, but the root node will have a zero-length name

Throws:

NodeNotFoundInParentException - if this node no longer exists inside the parent node (and perhaps in no other parent)

NodeNotFoundException - if this node no longer exists

See Also:

getName(NodeCache), getPath(NodeCache)

getPath

Path getPath(NodeCache cache)
             throws NodeNotFoundException

Get the path to this node.

Parameters:

cache - the cache to which this node belongs, required in case this node needs to use the cache; may not be null

Returns:

the node's path; never null with at least one segment for all nodes except the root node

Throws:

NodeNotFoundInParentException - if this node no longer exists inside the parent node (and perhaps in no other parent)

NodeNotFoundException - if this node no longer exists

See Also:

getName(NodeCache), getSegment(NodeCache)

getPath

Path getPath(PathCache pathCache)
             throws NodeNotFoundException

Get the path to this node.

Parameters:

pathCache - the cache of paths that can be used to compute the path for any node; may not be null

Returns:

the node's path; never null with at least one segment for all nodes except the root node

Throws:

NodeNotFoundInParentException - if this node no longer exists inside the parent node (and perhaps in no other parent)

NodeNotFoundException - if this node no longer exists

See Also:

getName(NodeCache), getSegment(NodeCache)

getParentKey

NodeKey getParentKey(NodeCache cache)

Get the node key for this node's primary parent within this workspace.

Parameters:

cache - the cache to which this node belongs, required in case this node needs to use the cache; may not be null

Returns:

the parent's key; null if this is the root node or it has been removed from the document by someone else

getParentKeyInAnyWorkspace

NodeKey getParentKeyInAnyWorkspace(NodeCache cache)

Get the node key for this node's primary parent in any workspace.

Parameters:

cache - the cache to which this node belongs, required in case this node needs to use the cache; may not be null

Returns:

the parent's key; null if this is the root node or it has been removed from the document by someone else

getAdditionalParentKeys

Set<NodeKey> getAdditionalParentKeys(NodeCache cache)

Get the keys for all of the nodes (other than the primary parent) under which this node appears.

Parameters:

cache - the cache to which this node belongs, required in case this node needs to use the cache; may not be null

Returns:

the immutable set of keys to the additional parents, excluding the primary parent

getPrimaryType

Name getPrimaryType(NodeCache cache)

Get the primary type for this node.

Parameters:

cache - the cache to which this node belongs, required in case this node needs to use the cache; may not be null

Returns:

the primary type name; never null

getMixinTypes

Set<Name> getMixinTypes(NodeCache cache)

Get the set of mixin types for this node.

Parameters:

cache - the cache to which this node belongs, required in case this node needs to use the cache; may not be null

Returns:

the immutable list of mixin type names; never null but possibly empty

getPropertyCount

int getPropertyCount(NodeCache cache)

Determine the number of properties that this node contains.

Parameters:

cache - the cache to which this node belongs, required in case this node needs to use the cache; may not be null

Returns:

the number of properties; never negative

hasProperties

boolean hasProperties(NodeCache cache)

Determine if the node contains one or more properties.

Parameters:

cache - the cache to which this node belongs, required in case this node needs to use the cache; may not be null

Returns:

true if the node has at least one property, or false otherwise

hasProperty

boolean hasProperty(Name name,
                  NodeCache cache)

Determine if the node contains a property with the specified name.

Parameters:

name - the name of the property

cache - the cache to which this node belongs, required in case this node needs to use the cache; may not be null

Returns:

true if the node has the named property, or false otherwise

getProperty

Property getProperty(Name name,
                   NodeCache cache)

Get the property with the given name.

Parameters:

name - the name of the property

cache - the cache to which this node belongs, required in case this node needs to use the cache; may not be null

Returns:

the property, or null if the property does not exist on this node

Throws:

NodeNotFoundException - if this node no longer exists

getProperties

Iterator<Property> getProperties(NodeCache cache)

Get an iterator over all of the node's properties.

Parameters:

cache - the cache to which this node belongs, required in case this node needs to use the cache; may not be null

Returns:

the property iterator; never null but possibly empty

getProperties

Iterator<Property> getProperties(Collection<?> namePatterns,
                               NodeCache cache)

Get an iterator over all of the properties of this node that have names matching at least one of the supplied patterns.

Parameters:

namePatterns - the regex patterns or string literals describing the names

cache - the cache to which this node belongs, required in case this node needs to use the cache; may not be null

Returns:

the property iterator; never null but possibly empty

getChildReferences

ChildReferences getChildReferences(NodeCache cache)

Get the set of child references for this node. Note that each child reference will need to be resolved by the caller.

Parameters:

cache - the cache to which this node belongs, required in case this node needs to use the cache; may not be null

Returns:

the representation of the children of this node; never null but possibly empty

getReferrers

Set<NodeKey> getReferrers(NodeCache cache,
                        CachedNode.ReferenceType type)

Get the keys of the nodes that have JCR REFERENCE and/or WEAK_REFERENCE properties pointing to this node.

Parameters:

cache - the cache to which this node belongs, required in case this node needs to use the cache; may not be null

type - the flag specifying whether nodes with REFERENCE properties and/or WEAK reference properties should be included in the result; may not be null

Returns:

the set of keys to the nodes that have a reference to this node; never null but possibly empty

getReferrerCounts

ReferrerCounts getReferrerCounts(NodeCache cache)

Get a snapshot of the referrers that have REFERENCE and/or WEAK_REFERENCE properties pointing to this node.

Parameters:

cache - the cache to which this node belongs, required in case this node needs to use the cache; may not be null

Returns:

the snapshot, or null if there is none

isAtOrBelow

boolean isAtOrBelow(NodeCache cache,
                  Path path)

Determine if this node is effectively at or below the supplied path. Note that because of additional parents, a node has multiple effective paths.

Parameters:

cache - the cache to which this node belongs, required in case this node needs to use the cache; may not be null

path - the path to be used for comparison; may not be null

Returns:

true if this node can be considered at or below the supplied path; or false otherwise

isQueryable

boolean isQueryable(NodeCache cache)

Determine if this node should be indexed and therefore available for querying. By default, every node is queryable, so only in certain cases can a node be made non-queryable.

Parameters:

cache - the cache to which this node belongs, required in case this node needs to use the cache; may not be null *

Returns:

true if the node should be indexed, false otherwise