Optional node: CompressionHeada sequence of compressed items for the node if it is a CompressionHead.
Optional node: TreeNodeThe compression chain of which the node is a part, or undefined if the node is not a CompressionParticipant
Optional node: TreeNodeThe CompressionHead of the node's compression chain, or undefined if the node is not a CompressionParticipant.
Optional node: TreeNodetrue if the node is a CompositeTreeNode and is its parent's sole child
In that case, the node can be shown in the same row as its parent.
Optional node: unknowntrue if the node is a CompositeTreeNode with a sole child, and the same is not true of its parent.
In that case, the node will appear as the first member of a compressed row.
Optional node: unknowntrue if the node has a single child that is a CompositeTreeNode
In that case, the child can be shown in the same row as the parent.
Optional node: TreeNodetrue if the node is part of a compression row, either a CompressionChild or CompressionParent
Optional node: TreeNodetrue if the node's parent is a CompositeTreeNode with a sole child, and the same is not true of the node.
In that case, the node will appear as the last member of a compressed row.
Protected isOptional node: unknown