Class AbstractNode

    • Constructor Detail

      • AbstractNode

        public AbstractNode()
        Default constructor required for serialization.
      • AbstractNode

        public AbstractNode​(int level)
        Constructs an AbstractNode at the given level in the tree
        Parameters:
        level - 0 if this node is a leaf, 1 if a parent of a leaf, and so on; the root node will have the highest level
    • Method Detail

      • getChildBoundables

        public List getChildBoundables()
        Returns either child AbstractNodes, or if this is a leaf node, real data (wrapped in ItemBoundables).
        Returns:
        a list of the children
      • computeBounds

        protected abstract Object computeBounds()
        Returns a representation of space that encloses this Boundable, preferably not much bigger than this Boundable's boundary yet fast to test for intersection with the bounds of other Boundables. The class of object returned depends on the subclass of AbstractSTRtree.
        Returns:
        an Envelope (for STRtrees), an Interval (for SIRtrees), or other object (for other subclasses of AbstractSTRtree)
        See Also:
        AbstractSTRtree.IntersectsOp
      • getBounds

        public Object getBounds()
        Gets the bounds of this node
        Specified by:
        getBounds in interface Boundable
        Returns:
        the object representing bounds in this index
      • getLevel

        public int getLevel()
        Returns 0 if this node is a leaf, 1 if a parent of a leaf, and so on; the root node will have the highest level
        Returns:
        the node level
      • size

        public int size()
        Gets the count of the Boundables at this node.
        Returns:
        the count of boundables at this node
      • isEmpty

        public boolean isEmpty()
        Tests whether there are any Boundables at this node.
        Returns:
        true if there are boundables at this node
      • addChildBoundable

        public void addChildBoundable​(Boundable childBoundable)
        Adds either an AbstractNode, or if this is a leaf node, a data object (wrapped in an ItemBoundable)
        Parameters:
        childBoundable - the child to add