org.h2gis.functions.spatial.create

Class GridRowSet

java.lang.Object

org.h2gis.functions.spatial.create.GridRowSet

All Implemented Interfaces:

org.h2.tools.SimpleRowSource

public class GridRowSet
extends Object
implements org.h2.tools.SimpleRowSource

GridRowSet is used to populate a result set with all grid cells. A cell could be represented as a polygon or its center point.

Author:

Erwan Bocher

Constructor Summary

Constructors

Constructor and Description
GridRowSet(Connection connection, double deltaX, double deltaY, org.locationtech.jts.geom.Envelope envelope) The grid will be computed according an envelope
GridRowSet(Connection connection, double deltaX, double deltaY, String tableName) The grid will be computed according a table stored in the database

Method Summary

Modifier and Type	Method and Description
void	close()
ResultSet	getResultSet() Give the regular grid
boolean	isCenterCell() Return true is cell is represented as point, false as a polygon
Object[]	readRow()
void	reset()
void	setCenterCell(boolean isCenterCell) Set if the cell must be represented as a point or a polygon

Methods inherited from class java.lang.Object

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

Constructor Detail

GridRowSet

public GridRowSet(Connection connection,
                  double deltaX,
                  double deltaY,
                  String tableName)

The grid will be computed according a table stored in the database

Parameters:

connection -

deltaX -

deltaY -

tableName -

GridRowSet

public GridRowSet(Connection connection,
                  double deltaX,
                  double deltaY,
                  org.locationtech.jts.geom.Envelope envelope)

The grid will be computed according an envelope

Parameters:

connection -

deltaX -

deltaY -

envelope -

Method Detail

readRow

public Object[] readRow()
                 throws SQLException

Specified by:

readRow in interface org.h2.tools.SimpleRowSource

Throws:

SQLException

close

public void close()

Specified by:

close in interface org.h2.tools.SimpleRowSource

reset

public void reset()
           throws SQLException

Specified by:

reset in interface org.h2.tools.SimpleRowSource

Throws:

SQLException

isCenterCell

public boolean isCenterCell()

Return true is cell is represented as point, false as a polygon

Returns:

setCenterCell

public void setCenterCell(boolean isCenterCell)

Set if the cell must be represented as a point or a polygon

Parameters:

isCenterCell -

getResultSet

public ResultSet getResultSet()
                       throws SQLException

Give the regular grid

Returns:

ResultSet

Throws:

SQLException