eu.mihosoft.vrl.workflow

Class WorkflowUtil

java.lang.Object

eu.mihosoft.vrl.workflow.WorkflowUtil

public class WorkflowUtil
extends Object

Workflow utility class.

Author:

Michael Hoffer <info@michaelhoffer.de>

Field Summary

Fields

Modifier and Type	Field and Description
static String	CONTROL_FLOW
static String	DATA_FLOW
static String	EVENT_FLOW

Method Summary

Modifier and Type	Method and Description
static List<ConnectionResult>	connect(Connector s, Connector r)
static Predicate<Connector>	connectorConnected(String connectionType) Returns a predicate that indicates whether a connector is connected with the specified connection type.
static Predicate<Connector>	connectorNotConnected(String connectionType) Returns a predicate that indicates whether a connector is not connected with the specified connection type.
static List<VFlowModel>	getAncestors(VNode n) Returns the ancestors of the specified node.
static Optional<VFlowModel>	getCommonAncestor(VNode n1, VNode n2) Returns the first common ancestor of the specified nodes if such a parent node exists.
static List<VNode>	getPathInLayerFromRoot(VNode sender, String connectionType)
static boolean	isRoot(VNode node, String connectionType)
static Predicate<Connector>	lessThanConnections(int expectedNumConn, String connectionType) Returns a predicate that indicates whether the number of connections of the specified connector is smaller than the expected number of connections.
static Predicate<Connector>	moreThanConnections(int expectedNumConn, String connectionType) Returns a predicate that indicates whether the number of connections of the specified connector is bigger than the expected number of connections.
static Predicate<VNode>	nodeConnected(String connectionType) Returns a predicate that indicates whether a node is connected with the specified connection type.
static Predicate<VNode>	nodeNotConnected(String connectionType) Returns a predicate that indicates whether a node is not connected with the specified connection type.
static Predicate<Connector>	numberOfConnections(int expectedNumConn, String connectionType) Returns a predicate that indicates whether the number of connections of the specified connector is equal to the expected number of connections.

Methods inherited from class java.lang.Object

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

Field Detail

CONTROL_FLOW

public static final String CONTROL_FLOW

See Also:

Constant Field Values

DATA_FLOW

public static final String DATA_FLOW

See Also:

Constant Field Values

EVENT_FLOW

public static final String EVENT_FLOW

See Also:

Constant Field Values

Method Detail

connectorConnected

public static Predicate<Connector> connectorConnected(String connectionType)

Returns a predicate that indicates whether a connector is connected with the specified connection type. Note: the predicate can be used to filter streams and collections.

Parameters:

connectionType - connection type (e.g. "data" or "control")

Returns:

a predicate that indicates whether a connector is connected with the specified connection type

See Also:

Stream

connectorNotConnected

public static Predicate<Connector> connectorNotConnected(String connectionType)

Returns a predicate that indicates whether a connector is not connected with the specified connection type.

Parameters:

connectionType - connection type (e.g. "data" or "control")

Returns:

a predicate that indicates whether a connector is not connected with the specified connection type

See Also:

Stream

nodeConnected

public static Predicate<VNode> nodeConnected(String connectionType)

Returns a predicate that indicates whether a node is connected with the specified connection type.

Parameters:

connectionType - connection type (e.g. "data" or "control")

Returns:

a predicate that indicates whether a node is connected with the specified connection type

See Also:

Stream

nodeNotConnected

public static Predicate<VNode> nodeNotConnected(String connectionType)

Returns a predicate that indicates whether a node is not connected with the specified connection type.

Parameters:

connectionType - connection type (e.g. "data" or "control")

Returns:

a predicate that indicates whether a node is not connected with the specified connection type

See Also:

Stream

moreThanConnections

public static Predicate<Connector> moreThanConnections(int expectedNumConn,
                                                       String connectionType)

Returns a predicate that indicates whether the number of connections of the specified connector is bigger than the expected number of connections. Only connections of the specifed type are counted.

Parameters:

expectedNumConn - expected number of connections

connectionType - connection type (e.g. "data" or "control")

Returns:

a predicate that indicates whether the number of connections of the specified connector is bigger than the expected number of connections

See Also:

Stream

lessThanConnections

public static Predicate<Connector> lessThanConnections(int expectedNumConn,
                                                       String connectionType)

Returns a predicate that indicates whether the number of connections of the specified connector is smaller than the expected number of connections. Only connections of the specifed type are counted.

Parameters:

expectedNumConn - expected number of connections

connectionType - connection type (e.g. "data" or "control")

Returns:

a predicate that indicates whether the number of connections of the specified connector is smaller than the expected number of connections

See Also:

Stream

numberOfConnections

public static Predicate<Connector> numberOfConnections(int expectedNumConn,
                                                       String connectionType)

Returns a predicate that indicates whether the number of connections of the specified connector is equal to the expected number of connections. Only connections of the specifed type are counted.

Parameters:

expectedNumConn - expected number of connections

connectionType - connection type (e.g. "data" or "control")

Returns:

a predicate that indicates whether the number of connections of the specified connector is equal to the expected number of connections

See Also:

Stream

isRoot

public static boolean isRoot(VNode node,
                             String connectionType)

getPathInLayerFromRoot

public static List<VNode> getPathInLayerFromRoot(VNode sender,
                                                 String connectionType)

connect

public static List<ConnectionResult> connect(Connector s,
                                             Connector r)

getAncestors

public static List<VFlowModel> getAncestors(VNode n)

Returns the ancestors of the specified node.

Parameters:

n - node

Returns:

the ancestors of the specified node

getCommonAncestor

public static Optional<VFlowModel> getCommonAncestor(VNode n1,
                                                     VNode n2)

Returns the first common ancestor of the specified nodes if such a parent node exists.

Parameters:

n1 - first node

n2 - second node

Returns:

the common ancestor of the specified nodes if such a parent node exists