de.aristaflow.adept2.core.changeoperations

Class DeleteDataEdge

java.lang.Object

de.aristaflow.adept2.core.changeoperations.DeleteDataEdge

public class DeleteDataEdge
extends java.lang.Object

Change operation for the deletion of a data edge between a node and a data element. Call isPossible first to check if the deletion is valid, than call perform operation to execute the change TODO Refactor; use a common interface for change operations.

Author:

Martin Jurisch

Field Summary

Fields

Modifier and Type	Field and Description
protected static java.util.logging.Logger	logger a Logger

Constructor Summary

Constructors

Constructor and Description
DeleteDataEdge()

Method Summary

Modifier and Type	Method and Description
static boolean	isPossible(ChangeableInstance instance, Node node, DataElement dataElement, ActivityConstants.AccessType type) Check if it is possible (concerning structural and state-based correctness) to delete the data edge between the given node and the data element in the instance.
static boolean	isPossible(ChangeableInstance instance, Node node, DataElement dataElement, ActivityConstants.AccessType type, CheckReport checkReport) Check if it is possible (concerning structural and state-based correctness) to delete the data edge between the given node and the data element.
static boolean	isPossible(Template template, Node node, DataElement dataElement, ActivityConstants.AccessType type) Check if it is possible (concerning structural correctness) to delete the data edge between the given node and the data element in the template.
static boolean	isPossible(Template template, Node node, DataElement dataElement, ActivityConstants.AccessType type, CheckReport checkReport) Check if it is possible (concerning structural correctness) to delete the data edge between the given node and the data element.
static void	performOperation(SessionToken session, ChangeableInstance instance, Node node, DataElement dataElement, ActivityConstants.AccessType type) Deletes a data edge form the instance.
static void	performOperation(SessionToken session, ChangeableInstance instance, Node node, DataElement dataElement, ActivityConstants.AccessType type, UpdateManager updateManager) Deletes a data edge form the instance (with updateManager).
static void	performOperation(SessionToken session, ChangeableTemplate template, Node node, DataElement dataElement, ActivityConstants.AccessType type) Deletes a data edge from the template.
static void	performOperation(SessionToken session, ChangeableTemplate template, Node node, DataElement dataElement, ActivityConstants.AccessType type, UpdateManager updateManager) Deletes a data edge from the template (with updateManager).
protected static void	performOperation(SessionToken session, ChangePrimitives processGraph, Node node, DataElement dataElement, ActivityConstants.AccessType type, UpdateManager updateManager) Worker method to do the structural changes for both changeable templates and changeable instances.

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected static final java.util.logging.Logger logger

a Logger

Constructor Detail

DeleteDataEdge

public DeleteDataEdge()

Method Detail

isPossible

public static boolean isPossible(Template template,
                                 Node node,
                                 DataElement dataElement,
                                 ActivityConstants.AccessType type)

Check if it is possible (concerning structural correctness) to delete the data edge between the given node and the data element in the template.

Parameters:

template - the template where the change operation is performed on.

node - node of the data edge

dataElement - the data element the data edge is connected to.

type - the access type of the data edge (read or write)

Returns:

True, if deletion is possible

isPossible

public static boolean isPossible(Template template,
                                 Node node,
                                 DataElement dataElement,
                                 ActivityConstants.AccessType type,
                                 CheckReport checkReport)

Check if it is possible (concerning structural correctness) to delete the data edge between the given node and the data element. If it is not possible the reasons are stored in the checkReport.

Parameters:

template - the template where the change operation is performed on.

node - node of the data edge

dataElement - the data element the data edge is connected to.

type - the access type of the data edge (read or write)

checkReport - a checkReport object which can be filled with the reason why the isPossible failed (i.e. in the case the method returns false), may be null

Returns:

True, if deletion is possible

isPossible

public static boolean isPossible(ChangeableInstance instance,
                                 Node node,
                                 DataElement dataElement,
                                 ActivityConstants.AccessType type)

Check if it is possible (concerning structural and state-based correctness) to delete the data edge between the given node and the data element in the instance.

Parameters:

instance - the changeable instance where the change operation is performed on.

node - node of the data edge

dataElement - the data element the data edge is connected to.

type - the access type of the data edge (read or write)

Returns:

True, if deletion is possible

isPossible

public static boolean isPossible(ChangeableInstance instance,
                                 Node node,
                                 DataElement dataElement,
                                 ActivityConstants.AccessType type,
                                 CheckReport checkReport)

Check if it is possible (concerning structural and state-based correctness) to delete the data edge between the given node and the data element. If it is not possible the reasons are stored in the checkReport.

Parameters:

instance - the changeable instance where the change operation is performed on.

node - node of the data edge

dataElement - the data element the data edge is connected to.

type - the access type of the data edge (read or write)

checkReport - a checkReport object which can be filled with the reason why the isPossible failed (i.e. in the case the method returns false), may be null

Returns:

True, if deletion is possible

performOperation

public static void performOperation(SessionToken session,
                                    ChangeableTemplate template,
                                    Node node,
                                    DataElement dataElement,
                                    ActivityConstants.AccessType type)

Deletes a data edge from the template.

Parameters:

session - The session which is used to check for access rights on this method.

template - the template where the change operation is performed on.

node - the node of the data edge

dataElement - the data element the data edge is connected to.

type - the access type of the data edge (read or write)

performOperation

public static void performOperation(SessionToken session,
                                    ChangeableTemplate template,
                                    Node node,
                                    DataElement dataElement,
                                    ActivityConstants.AccessType type,
                                    UpdateManager updateManager)

Deletes a data edge from the template (with updateManager).

Parameters:

session - The session which is used to check for access rights on this method.

template - the template where the change operation is performed on.

node - the node of the data edge

dataElement - dataElement the data element the data edge is connected to.

type - type the access type of the data edge (read or write)

updateManager - the manager who controls the update of the visual graph components.

performOperation

public static void performOperation(SessionToken session,
                                    ChangeableInstance instance,
                                    Node node,
                                    DataElement dataElement,
                                    ActivityConstants.AccessType type)

Deletes a data edge form the instance.

Parameters:

session - The session which is used to check for access rights on this method.

instance - the changeable instance where the change operation is performed on.

node - the node of the data edge

dataElement - the data element the data edge is connected to.

type - the access type of the data edge (read or write)

performOperation

public static void performOperation(SessionToken session,
                                    ChangeableInstance instance,
                                    Node node,
                                    DataElement dataElement,
                                    ActivityConstants.AccessType type,
                                    UpdateManager updateManager)

Deletes a data edge form the instance (with updateManager).

Parameters:

session - The session which is used to check for access rights on this method.

instance - the changeable instance where the change operation is performed on.

node - the node of the data edge

dataElement - the data element the data edge is connected to.

type - the access type of the data edge (read or write)

updateManager - the manager who controls the update of the visual graph components.

performOperation

protected static void performOperation(SessionToken session,
                                       ChangePrimitives processGraph,
                                       Node node,
                                       DataElement dataElement,
                                       ActivityConstants.AccessType type,
                                       UpdateManager updateManager)

Worker method to do the structural changes for both changeable templates and changeable instances.

Parameters:

session - The session which is used to check for access rights on this method.

processGraph - an instance of type ChangeableTemplate or ChangeableInstance

node - the node of the data edge

dataElement - the data element the data edge is connected to.

type - the access type of the data edge (read or write)

updateManager - the manager who controls the update of the visual graph components.