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/*******************************************************************************
* Copyright (c) 2014 Zeligsoft (2009) Limited and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*******************************************************************************/
package org.eclipse.papyrus.qompass.modellibs.core.xtend
import java.util.HashMap
import java.util.List
import java.util.Map
import org.eclipse.uml2.uml.Behavior
import org.eclipse.uml2.uml.Transition
import org.eclipse.xtend.lib.annotations.Accessors
/**
* A chain of state entry, exit and transition actions for a "flat"
* {@link Transition}.
*
* @author eposse
*
*/
class UMLChain {
@Accessors List<UMLAction> actions
@Accessors Transition owner
static Map<Transition, UMLChain> chains;
new () {
actions = newArrayList
}
new (List<UMLAction> actions) {
this.actions = newArrayList(actions) // We need this to be mutable.
}
def static void initChains() {
chains = new HashMap<Transition, UMLChain>();
}
/**
* Return the chain of behaviors associated with a transition
* IF the chain does not exist yet, it will be created (and stored in a hash map)
* @param t
* @return
*/
def static UMLChain chain(Transition t) {
var UMLChain chain = chains.get(t)
if (chain == null) {
chain = new UMLChain()
chain.setOwner(t)
chains.put(t, chain)
}
return chain
}
def append(UMLAction action) {
actions.add(action)
return this
}
def append(Behavior behavior) {
if (behavior != null) {
append(new UMLAction(behavior))
}
return this
}
def prepend(UMLAction action) {
actions.add(0, action)
return this
}
def prepend(Behavior behavior) {
prepend(new UMLAction(behavior))
return this
}
def getOwner() {
owner
}
def setOwner(Transition t) {
owner = t
// add transition effect to action list
append(t.effect)
}
}
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