# NodeHandle

## Content

class | NodeHandleSerializer
class | NodeHandleDeserializer

## Functions

| `NodeHandle`
| `NodeHandle`
size_t | `Hash`
bool | `operator==`
bool | `operator!=`
bool | `operator`
NodeHandle | `Invalid`

## Detailed Description

class `NodeHandle`

  A handle for a point cloud node. A NodeHandle is unique per point cloud tree. That is, if two handles belong to the same point cloud root, they will not compare equal.

  Public Functions

  inline `NodeHandle`()

    Constructs an invalid node handle of indeterminate state.

  `NodeHandle`(NodeData const &node_data)

    Constructs a node handle that is identical to node_data

    Parameters: | node_data – The node handle to copy

  size_t `Hash`() const
  inline bool `operator==`(NodeHandle const &other) const

    Tests whether or not two node handles are equal.

    Parameters: | other – The node handle to compare against.
    Returns: | true if other equals *this, false otherwise.

  inline bool `operator!=`(NodeHandle const &other) const

    Tests whether or not two node handles are unequal.

    Parameters: | other – The node handle to compare against.
    Returns: | true if other is unequal to *this, false otherwise.

  inline bool `operator<`(NodeHandle const &other) const

    Puts a strict ordering on node handles.

    Parameters: | other – The node handle to compare against.
    Returns: | true if other compares less than *this. Returns false otherwise.

  Public Static Functions

  static NodeHandle `Invalid`()

    Returns a node handle that represents an invalid node handle. The node handle returned by this function can be used as a representative invalid value. This value can be compared against other handles via the equality operators.

  Friends

  friend class delta::on_disk::NodeHandleSerializer
  friend class delta::on_disk::NodeHandleDeserializer

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