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## org.modeshape.jcr.cache.document
Class SessionNode.ChangedChildren

    java.lang.Object
      org.modeshape.jcr.cache.document.SessionNode.ChangedChildren

All Implemented Interfaces:
  ChildReferences.Changes

Enclosing class:
  SessionNode

    @ThreadSafe
    protected static class SessionNode.ChangedChildren

extends Object
implements ChildReferences.Changes

The representation of the changes made to the child references of this node.

Constructor Summary
`protected` | `SessionNode.ChangedChildren()`

Method Summary
`Map<NodeKey,SessionNode.Insertions>` | `getInsertionsByBeforeKey()` Get the map of insertions keyed by the 'before' node
`Map<NodeKey,Name>` | `getNewNames()` Get the names for the new nodes, keyed by their key.
`Set<NodeKey>` | `getRemovals()` Get the set of keys for the nodes that were removed from the list of child references.
`StringBuilder` | `getString(StringBuilder sb)`
`void` | `insertBefore(ChildReference before, ChildReference inserted)` Insert the supplied child reference before another child reference.
`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 ref)` 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.
`boolean` | `remove(NodeKey key)` Remove the supplied node from this node's list of child references.
`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.
`void` | `renameTo(NodeKey key, Name newName)` Rename the child reference with the given key.
`String` | `toString()`

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

Constructor Detail

### SessionNode.ChangedChildren

    protected SessionNode.ChangedChildren()

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

### 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

### 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

### 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

### insertBefore

    public void insertBefore(ChildReference before,
                             ChildReference inserted)

  Insert the supplied child reference before another child reference.

  Parameters:
    `before` - the existing child reference before which the child reference is to be placed; may not be null
    `inserted` - the reference to the child that is to be inserted; may not be null

### isRemoved

    public boolean isRemoved(ChildReference ref)

  Description copied from interface: `ChildReferences.Changes`
  Determine whether the supplied child reference was removed.

  Specified by:
    `isRemoved` in interface `ChildReferences.Changes`
  Parameters:
    `ref` - 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

### remove

    public boolean remove(NodeKey key)

  Remove the supplied node from this node's list of child references.

  Parameters:
    `key` - the key for the node that is to be removed; may not be null
  Returns:
    true if the node was removed, or false if the node was not referenced as a child

### 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

### renameTo

    public void renameTo(NodeKey key,
                         Name newName)

  Rename the child reference with the given key.

  Parameters:
    `key` - the key for the child reference; may not be null
    `newName` - the new name for the node; may not be null

### toString

    public String toString()

  Overrides:
    `toString` in class `Object`

### getString

    public StringBuilder getString(StringBuilder sb)

### getNewNames

    public Map<NodeKey,Name> getNewNames()

  Get the names for the new nodes, keyed by their key.

  Returns:
    the map of node names for the new nodes; never null but possibly empty

### getRemovals

    public Set<NodeKey> getRemovals()

  Get the set of keys for the nodes that were removed from the list of child references.

  Returns:
    the keys for the removed nodes; never null but possibly empty

### getInsertionsByBeforeKey

    public Map<NodeKey,SessionNode.Insertions> getInsertionsByBeforeKey()

  Get the map of insertions keyed by the 'before' node

  Returns:
    the map of insertions; never null but possibly empty

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