Package oracle.spatial.network.nfe.vis.maps.model

Class EditChangeManager

java.lang.Object

oracle.spatial.network.nfe.vis.maps.model.EditChangeManager

public class EditChangeManager
extends java.lang.Object

Defines a class to keep history of edit changes. The main attributes are: cached fetures: current set of abstract features new features: contains keys (String) of new features removed features: contains keys (String) of removed features modified features: contains keys (String) of modified features change events: contains a list of change events update change list: contains the updates of each feature to allow identify which attributes have changed. This class is used by the data set edit classes, and in general the user does not create an instance of this class in its application.

Constructor Summary

Constructors

Constructor	Description
EditChangeManager(java.util.Hashtable<java.lang.String,AbstractFeature> features, AbstractDataSet dataSet)	Constructor

Method Summary

Modifier and Type	Method	Description
boolean	addFeature(java.lang.String key, AbstractFeature feature)	Registers the addition of a new feature.
void	clearChanges()	Clears all changes.
java.lang.String[]	getChangedAttributesOfModifiedFeature(java.lang.String key)	Returns the attribute names of modified features that have the values changed.
AbstractFeature	getFeature(java.lang.String key)	Gets the abstract feature.
java.lang.String[]	getModifiedFeatures()
java.lang.String[]	getNewFeatures()
java.lang.String[]	getRemovedFeatures()
boolean	hasChanges()	Returns if any feature has been modified or removed, or if new Geometries has been added.
boolean	hasSpatialAttributeChanged(java.lang.String key)	Returns if spatial attribute of modified feature has changed.
boolean	isHoldLayerUpdate()
boolean	isModifiedFeature(java.lang.String key)
boolean	isNewFeature(java.lang.String key)
boolean	isRemovedFeature(java.lang.String key)
void	redo(EditChangeEvent change)	Restores the last edit operation.
boolean	removeFeature(java.lang.String key)	Registers that feature is removed.
void	setFeatures(java.util.Hashtable<java.lang.String,AbstractFeature> features)	Set the current feature set.
void	setHoldLayerUpdate(boolean holdLayerUpdate)
void	undo(EditChangeEvent change)	Restores the last edit operation.
boolean	updateFeature(java.lang.String key, java.lang.Object newObject, int updateType)	Registers an update in the feature.

Methods inherited from class java.lang.Object

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

Constructor Detail

EditChangeManager

public EditChangeManager(java.util.Hashtable<java.lang.String,AbstractFeature> features,
                         AbstractDataSet dataSet)

Constructor

Parameters:

features - feature set from a edit data set

Method Detail

setFeatures

public void setFeatures(java.util.Hashtable<java.lang.String,AbstractFeature> features)

Set the current feature set.

Parameters:

features -

clearChanges

public void clearChanges()

Clears all changes.

getFeature

public AbstractFeature getFeature(java.lang.String key)

Gets the abstract feature.

Parameters:

key - feature key.

Returns:

removeFeature

public boolean removeFeature(java.lang.String key)
                      throws java.lang.Exception

Registers that feature is removed.

Parameters:

key - feature key

Returns:

Throws:

java.lang.Exception

addFeature

public boolean addFeature(java.lang.String key,
                          AbstractFeature feature)
                   throws java.lang.Exception

Registers the addition of a new feature.

Parameters:

key - feture key value

feature - abstract feature object

Throws:

java.lang.Exception

updateFeature

public boolean updateFeature(java.lang.String key,
                             java.lang.Object newObject,
                             int updateType)
                      throws java.lang.Exception

Registers an update in the feature. The update may be a change on the spatial attribute, a change on a single non-spatial attribute, or a change in multiple non-spatial attributes. Spatial change: object type is of one spatial class (JGeometry, AnnotationText, ...). Attribute change: object type is of Field class. Multi attribute change: object type is of Field[] elements.

Parameters:

key - feature key value

newObject - change object

updateType - defines the type of update change

Returns:

Throws:

java.lang.Exception

isNewFeature

public boolean isNewFeature(java.lang.String key)

Parameters:

key -

Returns:

getNewFeatures

public java.lang.String[] getNewFeatures()

Returns:

isRemovedFeature

public boolean isRemovedFeature(java.lang.String key)

Parameters:

key -

Returns:

getRemovedFeatures

public java.lang.String[] getRemovedFeatures()

Returns:

getModifiedFeatures

public java.lang.String[] getModifiedFeatures()

Returns:

isModifiedFeature

public boolean isModifiedFeature(java.lang.String key)

Parameters:

key -

Returns:

hasChanges

public boolean hasChanges()

Returns if any feature has been modified or removed, or if new Geometries has been added.

Returns:

undo

public void undo(EditChangeEvent change)

Restores the last edit operation.

redo

public void redo(EditChangeEvent change)

Restores the last edit operation.

hasSpatialAttributeChanged

public boolean hasSpatialAttributeChanged(java.lang.String key)

Returns if spatial attribute of modified feature has changed. For new and removed features this method returns false.

Parameters:

key -

Returns:

getChangedAttributesOfModifiedFeature

public java.lang.String[] getChangedAttributesOfModifiedFeature(java.lang.String key)

Returns the attribute names of modified features that have the values changed. For new and removed features this method returns null.

Parameters:

key -

Returns:

setHoldLayerUpdate

public void setHoldLayerUpdate(boolean holdLayerUpdate)

isHoldLayerUpdate

public boolean isHoldLayerUpdate()