Class NodeBase

java.lang.Object
org.locationtech.jts.index.bintree.NodeBase
Direct Known Subclasses:
Node, Root
public abstract class NodeBase extends Object
The base class for nodes in a Bintree.
Version:
1.7

  • Field Details

    • items

      protected List items

    • subnode

      protected Node[] subnode
      subnodes are numbered as follows: 0 | 1

  • Constructor Details

    • NodeBase

      public NodeBase()

  • Method Details

    • getSubnodeIndex

      public static int getSubnodeIndex(Interval interval, double centre)
      Returns the index of the subnode that wholely contains the given interval. If none does, returns -1.

    • getItems

      public List getItems()

    • add

      public void add(Object item)

    • addAllItems

      public List addAllItems(List items)

    • isSearchMatch

      protected abstract boolean isSearchMatch(Interval interval)

    • addAllItemsFromOverlapping

      public void addAllItemsFromOverlapping(Interval interval, Collection resultItems)
      Adds items in the tree which potentially overlap the query interval to the given collection. If the query interval is null, add all items in the tree.
      Parameters:
      interval - a query interval, or null
      resultItems - the candidate items found

    • remove

      public boolean remove(Interval itemInterval, Object item)
      Removes a single item from this subtree.
      Parameters:
      itemInterval - the envelope containing the item
      item - the item to remove
      Returns:
      true if the item was found and removed

    • isPrunable

      public boolean isPrunable()

    • hasChildren

      public boolean hasChildren()

    • hasItems

      public boolean hasItems()