Package de.aristaflow.adept2.core.changeoperations

Class DeleteNode

java.lang.Object

de.aristaflow.adept2.core.changeoperations.DeleteNode

public class DeleteNode
extends Object

Change operation for the deletion of a single node. In public methods, the node can only be deleted, iff it is of type NT_NORMAL. For internal use (e.g. deletion of blocks) all kinds of nodes can be deleted. TODO Refactor; use a common interface for change operations.

Field Summary

Fields

Modifier and Type	Field	Description
protected static Logger	logger	a Logger

Constructor Summary

Constructors

Constructor	Description
DeleteNode()

Method Summary

Modifier and Type	Method	Description
static boolean	isPossible(ChangeableInstance instance, Node node)	Checks if it is valid to delete the node (concerning structural and state-based aspects) from the given instance.
static boolean	isPossible(ChangeableInstance instance, Node node, CheckReport checkReport)	Checks if it is valid to delete the node (concerning structural and state-based aspects) from the given instance.
static boolean	isPossible(Template template, Node node)	Checks if it is valid to delete the node (concerning structural aspects) from the given template
static boolean	isPossible(Template template, Node node, CheckReport checkReport)	Checks if it is valid to delete the node (concerning structural aspects) from the given template.
static void	performOperation(SessionToken session, ChangeableInstance instance, Node node)	Deletes a node of type NT_NORMAL from the given instance.
static void	performOperation(SessionToken session, ChangeableInstance instance, Node node, UpdateManager updateManager)	Deletes a node of type NT_NORMAL from the given instance (with updateManager).
protected static void	performOperation(SessionToken session, ChangeableInstance instance, Node node, ProcessConstants.NodeType type, UpdateManager updateManager)	Deletes a node of type type from the instance.
static void	performOperation(SessionToken session, ChangeableTemplate template, Node node)	Deletes a node of type NT_NORMAL from the given template.
static void	performOperation(SessionToken session, ChangeableTemplate template, Node node, UpdateManager updateManager)	Deletes a node of type NT_NORMAL from the given template (with updateManager).
protected static void	performOperation(SessionToken session, ChangeableTemplate template, Node node, ProcessConstants.NodeType type, UpdateManager updateManager)	Deletes a node of type type from the template.
protected static void	performOperation(SessionToken session, ChangePrimitives processGraph, Node node, ProcessConstants.NodeType 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 Logger logger

a Logger

Constructor Detail

DeleteNode

public DeleteNode()

Method Detail

isPossible

public static boolean isPossible(Template template,
                                 Node node)

Checks if it is valid to delete the node (concerning structural aspects) from the given template

Parameters:

template - the related template

node - the node to delete

Returns:

True, if it is valid to delete the node

isPossible

public static boolean isPossible(Template template,
                                 Node node,
                                 CheckReport checkReport)

Checks if it is valid to delete the node (concerning structural aspects) from the given template. If it is not possible the reasons are stored in the checkReport.

Parameters:

template - the related template

node - the node to delete

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 it is valid to delete the node

isPossible

public static boolean isPossible(ChangeableInstance instance,
                                 Node node)

Checks if it is valid to delete the node (concerning structural and state-based aspects) from the given instance.

Parameters:

instance - The changeable instance where the node should be deleted.

node - the node to delete

Returns:

True, if it is valid to delete the node

isPossible

public static boolean isPossible(ChangeableInstance instance,
                                 Node node,
                                 CheckReport checkReport)

Checks if it is valid to delete the node (concerning structural and state-based aspects) from the given instance. If it is not possible the reasons are stored in the checkReport.

Parameters:

instance - The changeable instance where the node should be deleted.

node - the node to delete

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 it is valid to delete the node

performOperation

public static void performOperation(SessionToken session,
                                    ChangeableTemplate template,
                                    Node node)

Deletes a node of type NT_NORMAL from the given template.

Parameters:

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

template - the changeable template where the method is performed on

node - the node to delete (must be of type NT_NORMAL)

performOperation

public static void performOperation(SessionToken session,
                                    ChangeableTemplate template,
                                    Node node,
                                    UpdateManager updateManager)

Deletes a node of type NT_NORMAL from the given template (with updateManager).

Parameters:

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

template - The template where the node is to be deleted

node - the node to delete (must be of type NT_NORMAL)

updateManager - the manager which is responsible for the graphical adaptation of the template (maybe null)

performOperation

protected static void performOperation(SessionToken session,
                                       ChangeableTemplate template,
                                       Node node,
                                       ProcessConstants.NodeType type,
                                       UpdateManager updateManager)

Deletes a node of type type from the template. This method is for internal use only. It offers the possibility to delete nodes which have only one in- and outgoing control edge and a type other than NT_NORMAL.

Parameters:

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

template - The template where the node is to be deleted

node - the node to delete

type - the type of the node

updateManager - the manager which is responsible for the graphical adaptation of the template (maybe null)

performOperation

public static void performOperation(SessionToken session,
                                    ChangeableInstance instance,
                                    Node node)

Deletes a node of type NT_NORMAL from the given instance.

Parameters:

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

instance - The changeable instance where the node is to be deleted

node - a node of type NT_NORMAL

performOperation

public static void performOperation(SessionToken session,
                                    ChangeableInstance instance,
                                    Node node,
                                    UpdateManager updateManager)

Deletes a node of type NT_NORMAL from the given instance (with updateManager).

Parameters:

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

instance - The changeable instance where the node is to be deleted

node - a node of type NT_NORMAL

updateManager - the manager which is responsible for the graphical adaptation of the template (maybe null)

performOperation

protected static void performOperation(SessionToken session,
                                       ChangeableInstance instance,
                                       Node node,
                                       ProcessConstants.NodeType type,
                                       UpdateManager updateManager)

Deletes a node of type type from the instance. This method is for internal use only. It offers the possibility to delete nodes which have only one in- and outgoing control edge and a type other than NT_NORMAL.

Parameters:

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

instance - The changeable instance where the node is to be deleted

node - the node to delete

type - the type of the node

updateManager - the manager which is responsible for the graphical adaptation of the template (maybe null)

performOperation

protected static void performOperation(SessionToken session,
                                       ChangePrimitives processGraph,
                                       Node node,
                                       ProcessConstants.NodeType 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 to delete

type - the type of the node

updateManager - the manager which is responsible for the graphical adaptation of the template (maybe null)