ee.telekom.workflow.graph.Transition Maven / Gradle / Ivy
package ee.telekom.workflow.graph;
/**
* A {@link Transition} describes the order of execution between {@link Node}s.
* They are directed links between nodes. During the execution of a
* {@link GraphInstance}, transitions will determine the path tokens proceed
* between nodes.
*
* Transitions may be labelled with a name. Their name can be used for flow control.
*/
public interface Transition {
public static final String DEFAULT_TRANSITION_NAME = null;
/**
* Returns the {@link Node} at the start of the transition.
*
* @return the {@link Node} at the start of the transition
*/
Node getStartNode();
/**
* Returns the {@link Node} at the end of the transition.
*
* @return the {@link Node} at the end of the transition
*/
Node getEndNode();
/**
* Returns the transition name. Nulls and blanks are allowed.
*
* @return the transition name
*/
String getName();
}