Package de.aristaflow.adept2.core.changeoperations

Class ToggleNodeVisibility

java.lang.Object

de.aristaflow.adept2.core.changeoperations.ToggleNodeVisibility

public class ToggleNodeVisibility
extends Object

Change operation, which allows to hide nodes in the process graph. Edges with hidden nodes are marked with dots in the middle. The purpose of the change operation is to hide the fact that the visibility is simply controlled using UserAttributes at the moment. Call isPossible first to check if the visibility-toggling is valid, than call perform operation to execute the change. TODO Refactor; use a common interface for change operations.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	HIDDEN
protected static final Logger	logger	a Logger
static final String	PROPERTY_VISIBILITY

Constructor Summary

Constructors

Constructor	Description
ToggleNodeVisibility()

Method Summary

Modifier and Type	Method	Description
static boolean	isInHiddenBlock(Template template, int nodeID)	Returns true if the node is in an invisible block of the template.
static boolean	isPossible(ChangeableInstance instance, int nodeID, boolean hidden)	Checks if it is valid to change the visibility of a node in the given instance.
static boolean	isPossible(ChangeableInstance instance, int nodeID, boolean hidden, CheckReport checkReport)	Checks if it is valid to change the visibility of a node in the given instance.
static boolean	isPossible(Template template, int nodeID, boolean hidden)	Checks if it is valid to change the visibility of a node in the template.
static boolean	isPossible(Template template, int nodeID, boolean hidden, CheckReport checkReport)	/** Checks if it is valid to change the visibility of a node in the template.
static void	performOperation(ChangeableInstance instance, int nodeID, boolean hidden)	Sets the visibility state of the node in the given instance.
static void	performOperation(ChangeableInstance instance, int nodeID, boolean hidden, UpdateManager updateManager)	Sets the visibility state of the node in the given instance.
static void	performOperation(ChangeableTemplate template, int nodeID, boolean hidden)	Sets the visibility state of the node in the given template.
static void	performOperation(ChangeableTemplate template, int nodeID, boolean hidden, UpdateManager updateManager)	Sets the visibility state of the node in the given template.
protected static void	performOperation(ChangePrimitives processGraph, Node node, boolean hidden, 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 Details

PROPERTY_VISIBILITY

public static final String PROPERTY_VISIBILITY

See Also:

• Constant Field Values

HIDDEN

public static final String HIDDEN

See Also:

• Constant Field Values

logger

protected static final Logger logger

a Logger

Constructor Details

ToggleNodeVisibility

public ToggleNodeVisibility()

Method Details

isPossible

public static boolean isPossible(Template template,
 int nodeID,
 boolean hidden)

Checks if it is valid to change the visibility of a node in the template.

Parameters:

template - the template where the method is performed on

nodeID - the ID of the node

hidden - the new value for the "hidden" flag

Returns:

true if toggling the visibility is valid

isPossible

public static boolean isPossible(Template template,
 int nodeID,
 boolean hidden,
 CheckReport checkReport)

/** Checks if it is valid to change the visibility of a node in the template. If it is not valid the reasons are stored in the checkReport.

Parameters:

template - the template where the method is performed on

hidden - the new value for the "hidden" flag

nodeID - the ID of the node

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 toggling the visibility is valid

isPossible

public static boolean isPossible(ChangeableInstance instance,
 int nodeID,
 boolean hidden)

Checks if it is valid to change the visibility of a node in the given instance.

Parameters:

instance - the changeable instance where the method is performed on

nodeID - the ID of the node

hidden - the new value for the "hidden" flag

Returns:

true if toggling the visibility is valid

isPossible

public static boolean isPossible(ChangeableInstance instance,
 int nodeID,
 boolean hidden,
 CheckReport checkReport)

Checks if it is valid to change the visibility of a node in the given instance. If it is not possible the reasons are stored in the checkReport.

Parameters:

instance - the changeable instance where the method is performed on

nodeID - the ID of the node

hidden - the new value for the "hidden" flag

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 toggling the visibility is valid

performOperation

public static void performOperation(ChangeableTemplate template,
 int nodeID,
 boolean hidden)

Sets the visibility state of the node in the given template. A value of true for hidden, hides the node.

Parameters:

template - the related template

nodeID - the ID of the node

hidden - true to hide the node, false otherwise.

performOperation

public static void performOperation(ChangeableTemplate template,
 int nodeID,
 boolean hidden,
 UpdateManager updateManager)

Sets the visibility state of the node in the given template. A value of true for hidden, hides the node.

Parameters:

template - the related template

nodeID - the ID of the node

hidden - true to hide the node, false otherwise.

updateManager - The UpdateManager where modifications are logged, may be null

performOperation

public static void performOperation(ChangeableInstance instance,
 int nodeID,
 boolean hidden)

Sets the visibility state of the node in the given instance. A value of true for hidden, hides the node.

Parameters:

instance - the related changeable instance

nodeID - the ID of the node

hidden - true to hide the node, false otherwise.

performOperation

public static void performOperation(ChangeableInstance instance,
 int nodeID,
 boolean hidden,
 UpdateManager updateManager)

Sets the visibility state of the node in the given instance. A value of true for hidden, hides the node.

Parameters:

instance - the related changeable instance

nodeID - the ID of the node

hidden - true to hide the node, false otherwise.

updateManager - The UpdateManager where modifications are logged, may be null

performOperation

protected static void performOperation(ChangePrimitives processGraph,
 Node node,
 boolean hidden,
 UpdateManager updateManager)

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

Parameters:

processGraph - an instance of type ChangeableTemplate or ChangeableInstance

node - the node object

hidden - true to hide the node, false otherwise.

updateManager - The UpdateManager where modifications are logged, may be null

isInHiddenBlock

public static boolean isInHiddenBlock(Template template,
 int nodeID)

Returns true if the node is in an invisible block of the template.

Parameters:

template - the template the check is performed on

nodeID - the node to check

Returns:

true, if the node is in an invisible block