ilog.views.diagrammer.servlet

Class IlvDiagrammerSelectionSupport

java.lang.Object

ilog.views.util.servlet.IlvSelectionSupport

ilog.views.diagrammer.servlet.IlvDiagrammerSelectionSupport

Direct Known Subclasses:

IlvFacesDiagrammerSelectionSupport

public class IlvDiagrammerSelectionSupport
extends IlvSelectionSupport

This class is the IlvSelectionSupport implementation dedicated to the diagrammer.

On the client-side, the IlvSelectionManager class is dealing with requests to and responses from this Servlet support class.

Since:

JViews 7.5

Nested Class Summary

Nested classes/interfaces inherited from class ilog.views.util.servlet.IlvSelectionSupport

IlvSelectionSupport.IlvSelectionResponse

Field Summary

Fields

Modifier and Type	Field and Description
static String	DIAGRAMMER_KEY The key to retrieve the diagrammer from the selection response object.

Fields inherited from class ilog.views.util.servlet.IlvSelectionSupport

REQUEST_TYPE

Constructor Summary

Constructors

Constructor and Description
IlvDiagrammerSelectionSupport(IlvDiagrammerServletSupport support) Creates a IlvDiagrammerSelectionSupport instance.

Method Summary

Modifier and Type	Method and Description
protected void	addSelectedLink(IlvGraphic obj) Adds the IlvGraphic object to the selected link list.
protected void	clearSelectedLink(IlvGraphic obj) Clear the selected link list.
protected void	deselectAll(javax.servlet.http.HttpServletRequest request, IlvSelectionSupport.IlvSelectionResponse response, IlvDiagrammer diagrammer) Cancels the selection of all the objects in the specified diagram component.
protected void	doGetDeselectAll(javax.servlet.http.HttpServletRequest request, IlvSelectionSupport.IlvSelectionResponse response) Attempts to deselect all the objects that are currently selected.
protected void	doGetSelectAll(javax.servlet.http.HttpServletRequest request, IlvSelectionSupport.IlvSelectionResponse response) Attempts to select all the selectable objects.
protected void	doGetSelectOne(javax.servlet.http.HttpServletRequest request, IlvSelectionSupport.IlvSelectionResponse response, int x, int y) Clears the current selections and attempts to select the object at a given position If a selectable object is found with the specified position, it is selected.
protected void	doGetSelectOneById(javax.servlet.http.HttpServletRequest request, IlvSelectionSupport.IlvSelectionResponse response, String id) Clears the current selections and attempts to select the object with the specified identifier.
protected void	doGetSelectOneMultiple(javax.servlet.http.HttpServletRequest request, IlvSelectionSupport.IlvSelectionResponse response, int x, int y) Attempts to extend the selection with the object at a given position, if any.
protected void	doGetSelectOneMultipleById(javax.servlet.http.HttpServletRequest request, IlvSelectionSupport.IlvSelectionResponse response, String id) Attempts to extend the selection with the object with the specified identifier, if any.
protected void	doGetUpdateAll(javax.servlet.http.HttpServletRequest request, IlvSelectionSupport.IlvSelectionResponse response) Resynchronizes the selection on the client from the server-side state of selection.
protected void	doGetUpdatedCapabilities(javax.servlet.http.HttpServletRequest request, IlvSelectionSupport.IlvSelectionResponse response) Updates the capabilities that have changed.
protected void	doPostSetProperties(javax.servlet.http.HttpServletRequest request, IlvSelectionSupport.IlvSelectionResponse response, List list) This method is called to manage the update on the server-side of properties that have been changed on selected objects on the client-side.
protected List	getAdditionalProperties(IlvSelectionSupport.IlvSelectionResponse response, Object object) Returns additional information about a selected object.
List<IlvLinkImage>	getSelectedLink() Gets the link whick is selected.
protected Iterator	getSelectedObjects(javax.servlet.http.HttpServletRequest request, IlvSelectionSupport.IlvSelectionResponse response, IlvDiagrammer diagrammer) Returns the nodes and links currently selected in the diagram component.
IlvDiagrammerServletSupport	getSupport() Returns the IlvDiagrammerServletSupport instance attached to this support.
protected void	initializeResponseProperties(IlvSelectionSupport.IlvSelectionResponse response, javax.servlet.http.HttpServletRequest request) Overrides IlvSelectionSupport.initializeResponseProperties(ilog.views.util.servlet.IlvSelectionSupport.IlvSelectionResponse, javax.servlet.http.HttpServletRequest) to add the diagrammer to the response properties.
void	installListeners() Installs the mandatory server listeners to properly use this selection support.
protected boolean	isResizable(IlvSelectionSupport.IlvSelectionResponse response, Object selectedObj) Checks the selected object whether is resizable or not.
protected boolean	isSelectable(javax.servlet.http.HttpServletRequest request, IlvManagerServletSupport support, IlvSDMView view, IlvGraphic obj) Returns whether this object can be selected or not.
protected boolean	isSelected(javax.servlet.http.HttpServletRequest request, IlvSelectionSupport.IlvSelectionResponse response, IlvDiagrammer diagrammer, IlvGraphic obj) Tests if the specified object is selected.
void	removeListeners() Removes listeners previously installed by installListeners.
protected void	selectAll(javax.servlet.http.HttpServletRequest request, IlvSelectionSupport.IlvSelectionResponse response, IlvDiagrammer diagrammer) Selects all the objects in the specified diagrammer.
protected void	setSelected(javax.servlet.http.HttpServletRequest request, IlvSelectionSupport.IlvSelectionResponse response, IlvDiagrammer diagrammer, IlvGraphic obj, boolean selected) Selects the specified object.

Methods inherited from class ilog.views.util.servlet.IlvSelectionSupport

getLastSelectedObject, handleRequest, setAdditionalProperties, setLastSelectedObject

Methods inherited from class java.lang.Object

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

Field Detail

DIAGRAMMER_KEY

public static final String DIAGRAMMER_KEY

The key to retrieve the diagrammer from the selection response object.

See Also:

Constant Field Values

Constructor Detail

IlvDiagrammerSelectionSupport

public IlvDiagrammerSelectionSupport(IlvDiagrammerServletSupport support)

Creates a IlvDiagrammerSelectionSupport instance.

Parameters:

support - The image servlet support.

Method Detail

getSupport

public IlvDiagrammerServletSupport getSupport()

Returns the IlvDiagrammerServletSupport instance attached to this support.

Returns:

The image servlet support.

installListeners

public void installListeners()

Installs the mandatory server listeners to properly use this selection support.

Specified by:

installListeners in class IlvSelectionSupport

removeListeners

public void removeListeners()

Removes listeners previously installed by installListeners.

Specified by:

removeListeners in class IlvSelectionSupport

initializeResponseProperties

protected void initializeResponseProperties(IlvSelectionSupport.IlvSelectionResponse response,
                                            javax.servlet.http.HttpServletRequest request)
                                     throws javax.servlet.ServletException

Overrides IlvSelectionSupport.initializeResponseProperties(ilog.views.util.servlet.IlvSelectionSupport.IlvSelectionResponse, javax.servlet.http.HttpServletRequest) to add the diagrammer to the response properties. To retrieve the diagrammer from the response object:

 
 IlvDiagrammer diagrammer = (IlvDiagrammer) response.getProperty(DIAGRAMMER_KEY);
 

Overrides:

initializeResponseProperties in class IlvSelectionSupport

Parameters:

response - The selection response object.

request - The HTTP request.

Throws:

javax.servlet.ServletException

doGetUpdateAll

protected void doGetUpdateAll(javax.servlet.http.HttpServletRequest request,
                              IlvSelectionSupport.IlvSelectionResponse response)
                       throws IOException,
                              javax.servlet.ServletException

Resynchronizes the selection on the client from the server-side state of selection.

Specified by:

doGetUpdateAll in class IlvSelectionSupport

Parameters:

request - The HTTP request.

response - The response object.

Throws:

IOException

javax.servlet.ServletException

doGetSelectOne

protected void doGetSelectOne(javax.servlet.http.HttpServletRequest request,
                              IlvSelectionSupport.IlvSelectionResponse response,
                              int x,
                              int y)
                       throws IOException,
                              javax.servlet.ServletException

Clears the current selections and attempts to select the object at a given position If a selectable object is found with the specified position, it is selected. The response updates the client-side selection accordingly.

Specified by:

doGetSelectOne in class IlvSelectionSupport

Parameters:

request - The HTTP request.

response - The response object.

x - The x coordinate of the point in view coordinates.

y - The y coordinate of the point in view coordinates

Throws:

IOException

javax.servlet.ServletException

doGetSelectOneMultiple

protected void doGetSelectOneMultiple(javax.servlet.http.HttpServletRequest request,
                                      IlvSelectionSupport.IlvSelectionResponse response,
                                      int x,
                                      int y)
                               throws IOException,
                                      javax.servlet.ServletException

Attempts to extend the selection with the object at a given position, if any. The response updates the client-side selection accordingly. If a selectable object is found at the specified position it is added or removed to the selection: an already selected object is deselected; an unselected object is selected. Otherwise (there was no selectable object), the selection is unchanged.

Specified by:

doGetSelectOneMultiple in class IlvSelectionSupport

Parameters:

request - The HTTP request.

response - The response object.

x - The x coordinate of the point in view coordinates.

y - The y coordinate of the point in view coordinates.

Throws:

IOException

javax.servlet.ServletException

doGetDeselectAll

protected void doGetDeselectAll(javax.servlet.http.HttpServletRequest request,
                                IlvSelectionSupport.IlvSelectionResponse response)
                         throws IOException,
                                javax.servlet.ServletException

Attempts to deselect all the objects that are currently selected. The response updates the client-side selection accordingly.

Overrides:

doGetDeselectAll in class IlvSelectionSupport

Parameters:

request - The HTTP request.

response - The response object.

Throws:

IOException

javax.servlet.ServletException

Since:

JViews 8.1

doGetSelectAll

protected void doGetSelectAll(javax.servlet.http.HttpServletRequest request,
                              IlvSelectionSupport.IlvSelectionResponse response)
                       throws IOException,
                              javax.servlet.ServletException

Attempts to select all the selectable objects. The response updates the client-side selection accordingly.

Overrides:

doGetSelectAll in class IlvSelectionSupport

Parameters:

request - The HTTP request.

response - The response object.

Throws:

IOException

javax.servlet.ServletException

Since:

JViews 8.1

doGetSelectOneById

protected void doGetSelectOneById(javax.servlet.http.HttpServletRequest request,
                                  IlvSelectionSupport.IlvSelectionResponse response,
                                  String id)
                           throws IOException,
                                  javax.servlet.ServletException

Clears the current selections and attempts to select the object with the specified identifier. If a selectable object is found with the specified identifier, it is selected. The response updates the client-side selection accordingly.

Overrides:

doGetSelectOneById in class IlvSelectionSupport

Parameters:

request - The HTTP request.

response - The response object.

id - The identifier of the object to select.

Throws:

IOException

javax.servlet.ServletException

Since:

JViews 8.1

doGetSelectOneMultipleById

protected void doGetSelectOneMultipleById(javax.servlet.http.HttpServletRequest request,
                                          IlvSelectionSupport.IlvSelectionResponse response,
                                          String id)
                                   throws IOException,
                                          javax.servlet.ServletException

Attempts to extend the selection with the object with the specified identifier, if any. The response updates the client-side selection accordingly. If a selectable object is found with the specified identifier, it is added or removed to the selection: an already selected object is deselected; an unselected object is selected. Otherwise (there was no selectable object), the selection is unchanged.

Overrides:

doGetSelectOneMultipleById in class IlvSelectionSupport

Parameters:

request - The HTTP request.

response - The response object.

id - The identifier of the object to select.

Throws:

IOException

javax.servlet.ServletException

Since:

JViews 8.1

isSelected

protected boolean isSelected(javax.servlet.http.HttpServletRequest request,
                             IlvSelectionSupport.IlvSelectionResponse response,
                             IlvDiagrammer diagrammer,
                             IlvGraphic obj)

Tests if the specified object is selected. This method must not be called directly. It can be overridden to change the selection behavior.

Parameters:

request - The http request.

response - The response object.

diagrammer - The diagrammer.

obj - The object.

Returns:

If obj is selected, true is returned.

Since:

JViews 8.1

setSelected

protected void setSelected(javax.servlet.http.HttpServletRequest request,
                           IlvSelectionSupport.IlvSelectionResponse response,
                           IlvDiagrammer diagrammer,
                           IlvGraphic obj,
                           boolean selected)

Selects the specified object. This method must not be called directly. It can be overridden to change the selection behavior.

This method implementation calls IlvManager.setSelected(IlvGraphic, boolean, boolean) to select objects.

Parameters:

request - The http request.

response - The response object.

diagrammer - The diagrammer.

obj - The object to select.

selected - If true the object will be selected.

Since:

JViews 8.1

addSelectedLink

protected void addSelectedLink(IlvGraphic obj)

Adds the IlvGraphic object to the selected link list.

Since:

JViews 8.7

clearSelectedLink

protected void clearSelectedLink(IlvGraphic obj)

Clear the selected link list.

Since:

JViews 8.7

selectAll

protected void selectAll(javax.servlet.http.HttpServletRequest request,
                         IlvSelectionSupport.IlvSelectionResponse response,
                         IlvDiagrammer diagrammer)

Selects all the objects in the specified diagrammer. This method must not be called directly. It can be overridden to change the selection behavior.

This method implementation calls IlvManager.selectAll(boolean, boolean) to select objects.

Parameters:

request - The http request.

response - The response object.

diagrammer - The diagrammer.

Since:

JViews 8.1

deselectAll

protected void deselectAll(javax.servlet.http.HttpServletRequest request,
                           IlvSelectionSupport.IlvSelectionResponse response,
                           IlvDiagrammer diagrammer)

Cancels the selection of all the objects in the specified diagram component.

Note: this method must not be called directly. It can be overridden to change the selection behavior.

This method implementation calls IlvManager.deSelectAll(boolean,boolean) to cancel object selection.

Parameters:

request - The HTTP request.

response - The response object.

diagrammer - The diagram component.

Since:

JViews 8.1

getSelectedObjects

protected Iterator getSelectedObjects(javax.servlet.http.HttpServletRequest request,
                                      IlvSelectionSupport.IlvSelectionResponse response,
                                      IlvDiagrammer diagrammer)

Returns the nodes and links currently selected in the diagram component. This method must not be called directly. It can be overridden to change the selection behavior.

This method implementation calls IlvDiagrammer.getSelectedObjects() to return the selected objects.

Parameters:

request - The http request.

response - The response object.

diagrammer - The diagrammer.

Returns:

An iterator over the selected node or link objects. This iterator does not support the remove operation.

Since:

JViews 8.1

doGetUpdatedCapabilities

protected void doGetUpdatedCapabilities(javax.servlet.http.HttpServletRequest request,
                                        IlvSelectionSupport.IlvSelectionResponse response)
                                 throws javax.servlet.ServletException

Updates the capabilities that have changed.

Overrides:

doGetUpdatedCapabilities in class IlvSelectionSupport

Parameters:

request - The HTTP request.

response - The response object.

Throws:

javax.servlet.ServletException

doPostSetProperties

protected void doPostSetProperties(javax.servlet.http.HttpServletRequest request,
                                   IlvSelectionSupport.IlvSelectionResponse response,
                                   List list)
                            throws IOException

This method is called to manage the update on the server-side of properties that have been changed on selected objects on the client-side.

Overrides:

doPostSetProperties in class IlvSelectionSupport

Parameters:

request - The HTTP request.

response - The response object.

list - The List of additional information on a selected objects. Each item of this list is itself an List that corresponds to properties a selected object. Note that the first object of each of these sub lists is the unique identifier of the selected object.

Throws:

IOException

Since:

JViews 8.0

getAdditionalProperties

protected List getAdditionalProperties(IlvSelectionSupport.IlvSelectionResponse response,
                                       Object object)

Returns additional information about a selected object.

The overridden version adds the Tag property in addition to the properties mandated by IlvSelectionSupport.getAdditionalProperties(IlvSelectionResponse, Object).

Specified by:

getAdditionalProperties in class IlvSelectionSupport

Parameters:

response - The selection response object.

object - The object selected or deselected.

Returns:

An array list of additional information on a selected/deselected object. Each item of the list could be a String, an array, a List or Map. List and arrays are rendered as JSON arrays on the client and Map are rendered as JSON objects on the client.

Note that the two first objects must be:

• ID -- A unique identifier of the selected object.
• Movable -- true if this object is movable, false otherwise.
• Type -- the type of the selected object.

isResizable

protected boolean isResizable(IlvSelectionSupport.IlvSelectionResponse response,
                              Object selectedObj)

Checks the selected object whether is resizable or not.

Overrides:

isResizable in class IlvSelectionSupport

Parameters:

response - The selection response object.

selectedObj - the object that was selected.

Returns:

Returns true if object is resizable,false otherwise. The default value is false

Since:

JViews 8.7

isSelectable

protected boolean isSelectable(javax.servlet.http.HttpServletRequest request,
                               IlvManagerServletSupport support,
                               IlvSDMView view,
                               IlvGraphic obj)

Returns whether this object can be selected or not. By default, a graphic object can be selected when:

• A call to manager.isSelectable(obj) returns true. Where manager is the direct manager of this object.
• And this object is in a dynamic top level layer. See IlvManagerServletSupport.getDynamicLayers(HttpServletRequest, IlvManagerView).

Parameters:

request - The HTTP request.

support - The servlet support.

view - The SDM view.

obj - The graphic object.

Returns:

true if the object is selectable, false otherwise.

Since:

JViews 8.5

getSelectedLink

public List<IlvLinkImage> getSelectedLink()

Gets the link whick is selected.

Since:

JViews 8.7