org.modeshape.jcr.cache
Class ChildReferences.NoChanges

java.lang.Object
  org.modeshape.jcr.cache.ChildReferences.NoChanges

All Implemented Interfaces:

ChildReferences.Changes

Enclosing interface:

ChildReferences

@Immutable
public static final class ChildReferences.NoChanges
extends Object
implements ChildReferences.Changes

Field Summary

protected static Iterator<ChildReferences.ChildInsertions>

NO_INSERTIONS_ITERATOR

Constructor Summary

ChildReferences.NoChanges()

Method Summary

ChildReference	inserted(NodeKey key) Get the child reference for the inserted node with the supplied key.
int	insertionCount() Get the number of child references that were inserted.
Iterator<ChildReferences.ChildInsertions>	insertions(Name name) Get the references to the children with the supplied name that were inserted.
ChildReferences.ChildInsertions	insertionsBefore(ChildReference key) Get the set of child references that were inserted before the node with the supplied key.
boolean	isEmpty() Determine if this set of changes is empty.
boolean	isRemoved(ChildReference key) Determine whether the supplied child reference was removed.
boolean	isRenamed(ChildReference ref) Determine whether the supplied child reference was renamed.
boolean	isRenamed(Name newName) Determine whether any of the child references were renamed to the supplied name.
int	removalCount() Get the number of child references that were removed.
int	renameCount() Get the number of child references that were renamed.
Name	renamed(NodeKey key) Return the new name for the child node with the supplied key.

Methods inherited from class java.lang.Object

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

Field Detail

NO_INSERTIONS_ITERATOR

protected static final Iterator<ChildReferences.ChildInsertions> NO_INSERTIONS_ITERATOR

Constructor Detail

ChildReferences.NoChanges

public ChildReferences.NoChanges()

Method Detail

isEmpty

public boolean isEmpty()

Description copied from interface: ChildReferences.Changes

Determine if this set of changes is empty.

Specified by:

isEmpty in interface ChildReferences.Changes

Returns:

true if there are no effective changes, or false if there is at least one effective change

insertionCount

public int insertionCount()

Description copied from interface: ChildReferences.Changes

Get the number of child references that were inserted.

Specified by:

insertionCount in interface ChildReferences.Changes

Returns:

the number of inserted child references; never negative

removalCount

public int removalCount()

Description copied from interface: ChildReferences.Changes

Get the number of child references that were removed.

Specified by:

removalCount in interface ChildReferences.Changes

Returns:

the number of removed child references; never negative

renameCount

public int renameCount()

Description copied from interface: ChildReferences.Changes

Get the number of child references that were renamed.

Specified by:

renameCount in interface ChildReferences.Changes

Returns:

the number of renamed child references; never negative

renamed

public Name renamed(NodeKey key)

Description copied from interface: ChildReferences.Changes

Return the new name for the child node with the supplied key.

Specified by:

renamed in interface ChildReferences.Changes

Parameters:

key - the child node's key; may not be null

Returns:

the new name, or null if the node is not a child or was not renamed

insertions

public Iterator<ChildReferences.ChildInsertions> insertions(Name name)

Description copied from interface: ChildReferences.Changes

Get the references to the children with the supplied name that were inserted.

Specified by:

insertions in interface ChildReferences.Changes

Parameters:

name - the name; may not be null

Returns:

the iterator over the insertions; never null but possibly empty

inserted

public ChildReference inserted(NodeKey key)

Description copied from interface: ChildReferences.Changes

Get the child reference for the inserted node with the supplied key.

Specified by:

inserted in interface ChildReferences.Changes

Parameters:

key - the node key for the inserted node; may not be null

Returns:

the child reference, or null if no node was inserted with the supplied key

insertionsBefore

public ChildReferences.ChildInsertions insertionsBefore(ChildReference key)

Description copied from interface: ChildReferences.Changes

Get the set of child references that were inserted before the node with the supplied key.

Specified by:

insertionsBefore in interface ChildReferences.Changes

Parameters:

key - the node key for the node before which the inserted nodes are to be returned; may not be null

Returns:

the nodes that were inserted before the node with the supplied key

isRemoved

public boolean isRemoved(ChildReference key)

Description copied from interface: ChildReferences.Changes

Determine whether the supplied child reference was removed.

Specified by:

isRemoved in interface ChildReferences.Changes

Parameters:

key - the reference; may not be null

Returns:

true if the child reference was removed, or false otherwise

isRenamed

public boolean isRenamed(ChildReference ref)

Description copied from interface: ChildReferences.Changes

Determine whether the supplied child reference was renamed.

Specified by:

isRenamed in interface ChildReferences.Changes

Parameters:

ref - the reference; may not be null

Returns:

true if the child reference was renamed, or false otherwise

isRenamed

public boolean isRenamed(Name newName)

Description copied from interface: ChildReferences.Changes

Determine whether any of the child references were renamed to the supplied name.

Specified by:

isRenamed in interface ChildReferences.Changes

Parameters:

newName - the new name; may not be null

Returns:

true if at least one child reference was renamed to the supplied name, or false otherwise