org.deegree.io.quadtree
Class DBNode

java.lang.Object
  org.deegree.io.quadtree.DBNode

All Implemented Interfaces:

Node

 class DBNode
extends Object
implements Node

Represents a node of a DBQuadtree. Nodes contain items which have a spatial extent corresponding to the node's position in the quadtree.

Since:

2.0

Version:

$Revision: 7845 $, 1.0. $Revision: 7845 $, $Date: 2007-07-25 09:45:35 +0200 (Mi, 25 Jul 2007) $

Author:

Andreas Poth, last edited by: $Author: apoth $

Constructor Summary

DBNode(String id, Envelope env, DBQuadtree qt, String indexName, JDBCConnection jdbc, int level)

Method Summary

(package private) void	create() creates a new node with current ID and envelope
void	deleteItem(Object item) deletes a specific item from the tree (not the item itself will be deleted, just its reference will be)
void	deleteRange(Envelope envelope) deletes all references of items whose envelope intersects with the passed one (
(package private) Envelope	getEnvelope()
String	getId()
void	insert(Object item, Envelope itemEnv) inserts a new item into the quadtree
List<Object>	query(Envelope searchEnv, List<Object> visitor, int level) returns a List containing all items whose envelope intersects with the passed one

Methods inherited from class java.lang.Object

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

Constructor Detail

DBNode

public DBNode(String id,
              Envelope env,
              DBQuadtree qt,
              String indexName,
              JDBCConnection jdbc,
              int level)
       throws IndexException

Parameters:

id -

jdbc -

Throws:

IndexException

Method Detail

getId

public String getId()

Specified by:

getId in interface Node

Returns:

getEnvelope

Envelope getEnvelope()

insert

public void insert(Object item,
                   Envelope itemEnv)
            throws IndexException

Description copied from interface: Node

inserts a new item into the quadtree

Specified by:

insert in interface Node

Throws:

IndexException

query

public List<Object> query(Envelope searchEnv,
                          List<Object> visitor,
                          int level)
                   throws IndexException

Description copied from interface: Node

returns a List containing all items whose envelope intersects with the passed one

Specified by:

query in interface Node

Returns:

a List containing all items whose envelope intersects with the passed one

Throws:

IndexException

deleteItem

public void deleteItem(Object item)

Description copied from interface: Node

deletes a specific item from the tree (not the item itself will be deleted, just its reference will be)

Specified by:

deleteItem in interface Node

deleteRange

public void deleteRange(Envelope envelope)

Description copied from interface: Node

deletes all references of items whose envelope intersects with the passed one (

Specified by:

deleteRange in interface Node

See Also:

)

create

void create()
      throws IndexException

creates a new node with current ID and envelope

Throws:

IndexException