Class AbstractNode

java.lang.Object
org.locationtech.jts.index.strtree.AbstractNode
All Implemented Interfaces:
Serializable, Boundable

public abstract class AbstractNode extends Object implements Boundable, 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:
  • Constructor Details

    • 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 Details

    • 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
    • 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