spatial
Class SelectQuery

java.lang.Object
  |
  +--spatial.BasicSpatialQuery
        |
        +--spatial.SelectQuery

All Implemented Interfaces:

SpatialQuery

public class SelectQuery

extends BasicSpatialQuery

Class offering the operations required for a selection query performed by a spatial search tree.

Field Summary

Fields inherited from class spatial.BasicSpatialQuery

tolerance

Constructor Summary

SelectQuery(int scale)
Constructor.

Method Summary

boolean	conditionFulfilled(MBR rect, MBR entryMBR) Tests whether the minimum coordinates of the query rectangle is contained by the MBR of a non-leaf entry intersect.
boolean	conditionFulfilled(MBR rect, SpatialSearchTreeEntry entry) Tests whether the minimum coordinate of the query rectangle and the MBR of an leaf entry interact.
boolean	conditionFulfilled(MBR rect, SpatialSearchTreeObject obj) Tests whether the query rectangle and the object interact.

Methods inherited from class spatial.BasicSpatialQuery

areEqual, setTolerance

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectQuery

public SelectQuery(int scale)

Constructor.

Parameters:

scale - the scale

Method Detail

conditionFulfilled

public boolean conditionFulfilled(MBR rect,
                                  MBR entryMBR)

Tests whether the minimum coordinates of the query rectangle is contained by the MBR of a non-leaf entry intersect. The tolerance attribute is considered.

Specified by:

conditionFulfilled in interface SpatialQuery

Overrides:

conditionFulfilled in class BasicSpatialQuery

Parameters:

rect - the query rectangle

entryMBR - the minimum bounding rectangle of non-leaf entry

Returns:

true if the condition is fulfilled

conditionFulfilled

public boolean conditionFulfilled(MBR rect,
                                  SpatialSearchTreeEntry entry)

Tests whether the minimum coordinate of the query rectangle and the MBR of an leaf entry interact. The tolerance attribute is considered.

Specified by:

conditionFulfilled in interface SpatialQuery

Overrides:

conditionFulfilled in class BasicSpatialQuery

Parameters:

rect - the query rectangle

entry - the entry of a leaf entry

Returns:

true if the condition is fulfilled

conditionFulfilled

public boolean conditionFulfilled(MBR rect,
                                  SpatialSearchTreeObject obj)

Tests whether the query rectangle and the object interact. The scale attribute is considered.

Specified by:

conditionFulfilled in interface SpatialQuery

Overrides:

conditionFulfilled in class BasicSpatialQuery

Parameters:

rect - the query rectangle

obj - the object

Returns:

true if the condition fulfilled