de.tesis.dynaware.grapheditor

Interface GConnectorValidator

public interface GConnectorValidator

An interface for customising connector validation.

A custom connector validator must implement this interface. It must also provide a no-argument constructor.

Method Summary

Modifier and Type	Method and Description
java.lang.String	createConnectionType(de.tesis.dynaware.grapheditor.model.GConnector source, de.tesis.dynaware.grapheditor.model.GConnector target) Creates the 'type' string to be used in a new connection.
java.lang.String	createJointType(de.tesis.dynaware.grapheditor.model.GConnector source, de.tesis.dynaware.grapheditor.model.GConnector target) Creates the 'type' string to be used in the joints inside a new connection.
boolean	prevalidate(de.tesis.dynaware.grapheditor.model.GConnector source, de.tesis.dynaware.grapheditor.model.GConnector target) Pre-validate check made during drag-over events.
boolean	validate(de.tesis.dynaware.grapheditor.model.GConnector source, de.tesis.dynaware.grapheditor.model.GConnector target) Validate check made during drag-over events.

Method Detail

prevalidate

boolean prevalidate(de.tesis.dynaware.grapheditor.model.GConnector source,
                    de.tesis.dynaware.grapheditor.model.GConnector target)

Pre-validate check made during drag-over events.

If the pre-validate check fails, the dragged connector will not interact with the dragged-over connector at all.

Parameters:

source - the GConnector that was dragged

target - the GConnector that was dragged-over

Returns:

true if a validate check should be made, false if not

validate

boolean validate(de.tesis.dynaware.grapheditor.model.GConnector source,
                 de.tesis.dynaware.grapheditor.model.GConnector target)

Validate check made during drag-over events. Only made if the pre-validate check passes.

Parameters:

source - the GConnector that was dragged

target - the GConnector that was dragged-over

Returns:

true if connection is allowed, false if it is forbidden

createConnectionType

java.lang.String createConnectionType(de.tesis.dynaware.grapheditor.model.GConnector source,
                                      de.tesis.dynaware.grapheditor.model.GConnector target)

Creates the 'type' string to be used in a new connection.

If both prevalidate and validate checks pass, a new connection will be created of the type returned by this method.

Parameters:

source - the GConnector that was dragged

target - the GConnector that was dragged-over

Returns:

a String specifying the type for the new connection

createJointType

java.lang.String createJointType(de.tesis.dynaware.grapheditor.model.GConnector source,
                                 de.tesis.dynaware.grapheditor.model.GConnector target)

Creates the 'type' string to be used in the joints inside a new connection.

Parameters:

source - the GConnector that was dragged

target - the GConnector that was dragged-over

Returns:

a String specifying the type for the new connection