Package org.locationtech.jts.index.strtree

Class AbstractNode

  • All Implemented Interfaces:
    java.io.Serializable, Boundable
    public abstract class AbstractNode
extends java.lang.Object
implements Boundable, java.io.Serializable
    A node of an AbstractSTRtree. A node is one of: A node stores the bounds of its children, and its level within the index tree.
    Version:
    1.7
    See Also:
    Serialized Form

    • Constructor Summary

      Constructors 
      Constructor Description
      AbstractNode()
      Default constructor required for serialization.
      AbstractNode​(int level)
      Constructs an AbstractNode at the given level in the tree

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void addChildBoundable​(Boundable childBoundable)
      Adds either an AbstractNode, or if this is a leaf node, a data object (wrapped in an ItemBoundable)
      java.lang.Object getBounds()
      Gets the bounds of this node
      java.util.List getChildBoundables()
      Returns either child AbstractNodes, or if this is a leaf node, real data (wrapped in ItemBoundables).
      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
      boolean isEmpty()
      Tests whether there are any Boundables at this node.
      int size()
      Gets the count of the Boundables at this node.

      • Methods inherited from class java.lang.Object

        equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

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

      • getBounds

        public java.lang.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