Class NodePool

NodePool manages reusable SceneGraph nodes for performance and memory efficiency. Implements the INodePool interface.

Implements

INodePool

Index

Constructors

Properties

createdCounts holder pool

Methods

get getPoolCounts prepopulate release

Constructors

constructor

new NodePool(): NodePool.NodePool
Constructs a new NodePool. Initializes the holder group and sets it to be invisible.

Returns NodePool.NodePool
- Defined in hosanna-ui/src/hosanna-ui/lib/NodePool.ts:65

Properties

`Private`createdCounts

createdCounts: { [componentType: string]: number } = {}

Tracks the number of created nodes for each component type.

`Private`holder

holder: ISGNGroup = ...

The hidden holder group for storing pooled nodes off-screen.

`Private`pool

pool: { [componentType: string]: ISGNNode[] } = {}

The pool of reusable nodes, keyed by component type.

Methods

get

get<T extends ISGNNode>(
componentType: string,
initialState?: IStyleDictionary,
): T
Retrieves a node of the specified component type from the pool, or creates a new one if none are available. Optionally applies an initial state to the node.
Type Parameters
- T extends ISGNNode
Parameters
- componentType: string
  The type of node to retrieve.
- OptionalinitialState: IStyleDictionary
  Optional initial state to apply to the node.
Returns T
The node instance.
Implementation of INodePool.get
- Defined in hosanna-ui/src/hosanna-ui/lib/NodePool.ts:78

getPoolCounts

getPoolCounts(): INodePoolCounts
Returns counts of total, available, and created nodes by component type.

Returns INodePoolCounts
An object containing node counts.
Implementation of INodePool.getPoolCounts
- Defined in hosanna-ui/src/hosanna-ui/lib/NodePool.ts:146

prepopulate

prepopulate(componentType: string, count: number): void
Prepopulates the pool with a specified number of nodes of the given component type. Nodes are created off-screen and added to the pool.
Parameters
- componentType: string
  The type of node to prepopulate.
- count: number
  The number of nodes to create.
Returns void
Implementation of INodePool.prepopulate
- Defined in hosanna-ui/src/hosanna-ui/lib/NodePool.ts:126

release

release(node: ISGNNode): void
Releases a node back into the pool for reuse. Removes the node from its parent and appends it to the holder group.
Parameters
- node: ISGNNode
  The node to release.
Returns void
Implementation of INodePool.release
- Defined in hosanna-ui/src/hosanna-ui/lib/NodePool.ts:105