ilog.views.maps.format.oracle.objectmodel

Class IlvObjectSDOLayer

java.lang.Object

ilog.views.IlvIndexedSet

ilog.views.IlvManagerLayer

ilog.views.tiling.IlvTiledLayer

ilog.views.maps.format.oracle.IlvSDOLayer

ilog.views.maps.format.oracle.objectmodel.IlvObjectSDOLayer

All Implemented Interfaces:

IlvPersistentObject, Serializable

public class IlvObjectSDOLayer
extends IlvSDOLayer

Implements load-on-demand layer for an Oracle Spatial data source. This class is an IlvSDOLayer which uses an IlvDefaultObjectSDOTileLoader. The geometry metadata table that is used through this class is SDO_GEOM_METADATA for Oracle 8.1.5- and USER_SDO_GEOM_METADATA for Oracle 8.1.6+.

This layer relies on the same database information from IlvDefaultObjectSDOTileLoader to read graphic objects from your Oracle Spatial database.

Since:

JViews 3.5

See Also:

IlvDefaultObjectSDOTileLoader, Serialized Form

Constructor Summary

Constructors

Constructor and Description
IlvObjectSDOLayer(IlvInputStream stream) Reads an IlvObjectSDOLayer from specified input stream.
IlvObjectSDOLayer(IlvSDOConnection connection, IlvObjectSDOLayerMetaData metadata, double tileWidth, double tileHeight, String xColumnName, String yColumnName, IlvObjectSDOKeyExtractor keyExtractor, IlvRect size) The main constructor of IlvObjectSDOLayer to load data from an Object SDO layer.
IlvObjectSDOLayer(IlvSDOConnection connection, String tableName, double tileWidth, double tileHeight, String keyColumnName) Initializes an instance of IlvObjectSDOLayer to load data from an SDO layer.
IlvObjectSDOLayer(IlvSDOTileLoader loader, IlvTileCache cache) Initializes an instance of IlvObjectSDOLayer to load data from an Object SDO layer.

Method Summary

Modifier and Type	Method and Description
boolean	isAttachingAttributes() Returns true if the attributes read from the SDO layer are attached to the graphic objects.
void	setAttachingAttributes(boolean attachAttributes) Specifies whether the attributes read from the SDO layer are attached to the graphic objects as IlvFeatureAttributeProperty.
void	write(IlvOutputStream stream) Writes this layer to the specified stream.

Methods inherited from class ilog.views.maps.format.oracle.IlvSDOLayer

getConnection, getFeatureRenderer, setFeatureRenderer

Methods inherited from class ilog.views.tiling.IlvTiledLayer

computeBBox, disconnect, draw, fitTransformerToTile, fitTransformerToTile, getDebugView, getSize, getTileController, getTileLoader, ignoreView, initTileOrigin, isIgnoringView, isVisible, setDebugView, setDebugView, setManager, setSize, setTileLoader

Methods inherited from class ilog.views.IlvManagerLayer

addVisibilityFilter, drawImpl, getAlpha, getIndex, getManager, getName, getNamedProperty, getProperty, getVisibilityFilters, isSelectable, isTemporarilyHidden, isVisible, print, removeNamedProperty, removeVisibilityFilter, setAlpha, setName, setNamedProperty, setProperty, writeIt

Methods inherited from class ilog.views.IlvIndexedSet

addObject, afterUpdate, beforeUpdate, collectObjects, collectSelectableObjects, deleteAll, getCardinal, getElements, getIndex, getManagers, getManagersCount, getObject, getObject, getSelectableObject, getSubsequentRemoveThreshold, isQuadtreeEnabled, isZOrdering, map, mapInside, mapInside, mapIntersects, mapIntersects, removeObject, setIndex, SetInitialNumberOfNonZoomablesCapacity, SetInitialNumberOfObjectsCapacity, setQuadtreeEnabled, setSubsequentRemoveThreshold, setZOrdering

Methods inherited from class java.lang.Object

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

Constructor Detail

IlvObjectSDOLayer

public IlvObjectSDOLayer(IlvSDOConnection connection,
                         String tableName,
                         double tileWidth,
                         double tileHeight,
                         String keyColumnName)
                  throws SQLException

Initializes an instance of IlvObjectSDOLayer to load data from an SDO layer. This constructor will use an IlvDefaultObjectSDOTileLoader created with the same parameters.

Parameters:

connection - The connection to an Oracle Database with the Spatial extensions.

tableName - The name of the table containing the layer.

tileWidth - The width of one load-on-demand tile, in the manager coordinate system.

tileHeight - The height of one load-on-demand tile, in the manager coordinate system.

keyColumnName - The name of the column containing object ID or null if no ID is associated to features.

Throws:

SQLException

See Also:

IlvDefaultObjectSDOTileLoader

IlvObjectSDOLayer

public IlvObjectSDOLayer(IlvSDOTileLoader loader,
                         IlvTileCache cache)
                  throws SQLException

Initializes an instance of IlvObjectSDOLayer to load data from an Object SDO layer.
This layer uses the tile loader passed as argument.

Parameters:

loader - The tile loader used by this layer in order to retrieve data.

cache - The tile cache used by this layer.

Throws:

SQLException

Since:

JViews 5.0

See Also:

IlvDefaultObjectSDOTileLoader, IlvObjectSDOUtil.GetLayerExtent(java.sql.Connection, java.lang.String, java.lang.String, java.lang.String, java.lang.String, boolean), IlvTileCache

IlvObjectSDOLayer

public IlvObjectSDOLayer(IlvSDOConnection connection,
                         IlvObjectSDOLayerMetaData metadata,
                         double tileWidth,
                         double tileHeight,
                         String xColumnName,
                         String yColumnName,
                         IlvObjectSDOKeyExtractor keyExtractor,
                         IlvRect size)
                  throws SQLException

The main constructor of IlvObjectSDOLayer to load data from an Object SDO layer.

The geometries are read from the layer specified by its name. Geometries are extracted from the column whose name is specified. Feature IDs are extracted using the specified IlvObjectSDOKeyExtractor.

The size of the whole layer (that is, the rectangle containing all geometries of the layer) is generally kept up-to-date (by the user) in the geometry metadata table of the Oracle Spatial Database. However, in some cases, providing a more accurate extent (like the extent returned using SDO_TUNE.EXTENT_OF) can lead to much better performances.

Parameters:

connection - The IlvSDOConnection to an Oracle Database with the Spatial extensions.

metadata - The metadata of the layer to be loaded on demand.

tileWidth - The width of one tile, in database units.

tileHeight - The height of one tile, in database units.

xColumnName - The name of the x-dimension.

yColumnName - The name of the y-dimension.

keyExtractor - The key extractor to extract feature IDs.

size - The size of the layer. If set to null, the size is defaulted to the one available in the geometry metadata table.

Throws:

SQLException

Since:

JViews 5.5

See Also:

IlvObjectSDOUtil.GetLayerExtent(java.sql.Connection, java.lang.String, java.lang.String, java.lang.String, java.lang.String, boolean), IlvObjectSDOLayerMetaData, IlvDefaultObjectSDOKeyExtractor

IlvObjectSDOLayer

public IlvObjectSDOLayer(IlvInputStream stream)
                  throws IlvReadFileException

Reads an IlvObjectSDOLayer from specified input stream.

Throws:

IlvReadFileException

Method Detail

setAttachingAttributes

public void setAttachingAttributes(boolean attachAttributes)

Specifies whether the attributes read from the SDO layer are attached to the graphic objects as IlvFeatureAttributeProperty. By default, the attributes are not attached to the graphic objects.

Parameters:

attachAttributes - If true, the attributes are attached to the graphic objects.

See Also:

IlvFeatureAttributeProperty, IlvMapFeature.getAttributes()

isAttachingAttributes

public boolean isAttachingAttributes()

Returns true if the attributes read from the SDO layer are attached to the graphic objects.

write

public void write(IlvOutputStream stream)
           throws IOException

Writes this layer to the specified stream.

Specified by:

write in interface IlvPersistentObject

Overrides:

write in class IlvSDOLayer

Parameters:

stream - the output stream

Throws:

IOException - if an errors occurs while writing.