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Association.java
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Association.java
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import java.util.Vector;
import java.io.*;
import java.util.List;
/******************************
* Copyright (c) 2003--2024 Kevin Lano
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http:https://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
* *****************************/
/* package: Class Diagram */
/* Major change: May 2016 - addr(obj,val) for 0..1 association
end now enforces val : obj.r even if it displaces an
existing element of obj.r */
public class Association extends ModelElement
{ private Entity entity1;
private Entity entity2;
private Entity linkedClass = null; // for association classes only
private int card1 = MANY; // MANY, ONE, ZEROONE or >= 2
private int card2 = MANY;
private String role1; // one of these is usually null
private String role2;
private boolean ordered = false; // role2 is a sequence
private boolean sortedAsc = false; // a sorted set
private boolean sortedDesc = false; // not implemented yet
// also ADDONLY, FROZEN options
private boolean addOnly = false; // also represented as stereotypes
private boolean frozen = false;
private boolean aggregation = false;
private Vector constraints = new Vector(); // those that involve this association
private Attribute qualifier = null; // non-null for qualified associations
private boolean instanceScope = true;
private Expression initialExpression = null;
public Association(Entity e1, Entity e2, int c1,
int c2, String r1, String r2)
{ super(e1 + "_" + e2);
entity1 = e1;
entity2 = e2;
card1 = c1;
card2 = c2;
role1 = r1;
role2 = r2;
if (e1 == null)
{ System.err.println("!!! FATAL ERROR: null class at association end 1");
return;
}
if (e2 == null)
{ System.err.println("!!! FATAL ERROR: null class at association end 2");
return;
}
}
public Association(Entity e1, Entity e2, String r2)
{ super(e1 + "_" + e2);
entity1 = e1;
entity2 = e2;
card1 = MANY;
card2 = MANY;
// role1 = r1;
role2 = r2;
/* if (e1 == null)
{ System.err.println("!!! FATAL ERROR: null class at association end 1");
return;
}
if (e2 == null)
{ System.err.println("!!! FATAL ERROR: null class at association end 2");
return;
} */
}
public Association(Entity e1, Attribute att)
{ super(e1.getName() + "_" + att.getName());
entity1 = e1;
Type tt = att.getType();
if (tt != null && tt.isEntity())
{ entity2 = tt.getEntity();
card1 = MANY;
card2 = ONE;
}
else if (tt != null && Type.isEntityCollection(tt))
{ Type et = tt.getElementType();
entity2 = et.getEntity();
card1 = MANY;
card2 = MANY;
if (tt.isSequenceType())
{ setOrdered(true); }
}
role1 = "";
role2 = att.getName();
}
public Object clone()
{ Association res = new Association(entity1, entity2, card1, card2, role1, role2);
res.setAddOnly(addOnly);
res.setFrozen(frozen);
res.setOrdered(ordered);
res.sortedAsc = sortedAsc;
res.aggregation = aggregation;
res.setQualifier(qualifier);
res.setInstanceScope(instanceScope);
return res;
}
public Association(Entity e1, Entity e2, String c1,
String c2, String r1, String r2)
{ super(e1.getName() + "_" + e2.getName());
entity1 = e1;
entity2 = e2;
card2 = ONE; // default in Ecore
// c1 is lower bound on role2, c2 is upper bound
if ("-1".equals(c2))
{ card2 = MANY; }
else if ("1".equals(c2))
{ if ("1".equals(c1))
{ card2 = ONE; }
else
{ card2 = ZEROONE; }
}
else
{ card2 = MANY; } // a..b with b > 1
card1 = MANY; // default - depends on the opposite
role1 = r1;
role2 = r2;
}
public void setInitialExpression(Expression init)
{ initialExpression = init; }
public void setType(Type t) { }
public void addParameter(Attribute att)
{ }
public Vector getParameters() { return new Vector(); }
public Type getType()
{ return getRole2Type(); }
public Association generateSubAssociation(Entity e1, Entity e2)
{ // assume e1 is ancestor of entity1, e2 of entity2
int c1 = card1;
int c2 = card2;
if (card1 == ONE)
{ c1 = ZEROONE; }
if (card2 == ONE)
{ c2 = ZEROONE; }
Association res = new Association(e1,e2,c1,c2,role1,role2);
return res;
} // copy ordered, sorted
public Association generateInverseAssociation()
{ Association inv = new Association(entity2,entity1,card2,card1,role2,role1);
if (isSource())
{ inv.setSource(true); }
else if (isTarget())
{ inv.setTarget(true); }
if (isPersistent())
{ inv.setPersistent(true); }
else
{ inv.setPersistent(false); }
return inv;
} // and other stereotypes?
public boolean isInverseAssociation(Association ast)
{ if (entity1 == ast.entity2 && entity2 == ast.entity1 &&
(role1 + "").equals(ast.role2) && role2.equals(ast.role1 + ""))
{ return true; }
return false;
}
public void updateAssociation(int c1, int c2, String r1, String r2,
Vector stereos)
{ card1 = c1;
card2 = c2;
role1 = r1;
role2 = r2;
setStereotypes(stereos);
if (stereos.contains("ordered"))
{ setOrdered(true); }
else
{ setOrdered(false); }
}
public void setName(String nme)
{ name = nme; }
public void setEntity1(Entity e1)
{ entity1 = e1; }
public void setEntity2(Entity e2)
{ entity2 = e2; }
public void setCard1(String lower, String upper)
{ if ("-1".equals(upper))
{ card1 = MANY; }
else if ("1".equals(upper))
{ if ("1".equals(lower))
{ card1 = ONE; }
else
{ card1 = ZEROONE; }
}
}
public boolean getAggregation()
{ return aggregation; }
public void setAggregation(boolean a)
{ aggregation = a;
if (a)
{ if (hasStereotype("aggregation")) { }
else
{ addStereotype("aggregation"); }
}
else
{ removeStereotype("aggregation"); }
}
public void setSource(boolean a)
{ if (a)
{ if (hasStereotype("source")) { }
else
{ addStereotype("source"); }
}
else
{ removeStereotype("source"); }
}
public void setTarget(boolean a)
{ if (a)
{ if (hasStereotype("target")) { }
else
{ addStereotype("target"); }
}
else
{ removeStereotype("target"); }
}
public void setQualifier(Attribute q)
{ qualifier = q;
if (q != null)
{ addStereotype("qualifier");
addStereotype(q.getName() + "");
}
}
public void unsetQualifier()
{ if (qualifier != null)
{ String qnme = qualifier.getName();
qualifier = null;
removeStereotype("qualifier");
removeStereotype(qnme);
}
}
public void setLinkedClass(Entity e)
{ linkedClass = e;
addStereotype("associationClass");
addStereotype(e.getName() + "");
}
public void unsetLinkedClass()
{ if (linkedClass != null)
{ String lc = linkedClass.getName();
linkedClass = null;
removeStereotype("associationClass");
removeStereotype(lc);
}
}
public void setSorted(boolean srt)
{ sortedAsc = srt; }
public void makeE1Optional()
{ if (card1 == ZEROONE) { }
else if (card1 == ONE)
{ card1 = ZEROONE; }
else
{ card1 = MANY; }
}
public void makeE2Optional()
{ if (card2 == ZEROONE) { }
else if (card2 == ONE)
{ card2 = ZEROONE; }
else
{ card2 = MANY; }
}
public Entity getEntity1()
{ return entity1; }
public Entity getEntity2()
{ return entity2; }
public static Vector allRole2Classes(Vector assocs)
{ Vector res = new Vector();
for (int i = 0; i < assocs.size(); i++)
{ Association ast = (Association) assocs.get(i);
Entity ent2 = ast.getEntity2();
res.add(ent2);
}
return res;
}
public static Vector allRole1Classes(Vector assocs)
{ Vector res = new Vector();
for (int i = 0; i < assocs.size(); i++)
{ Association ast = (Association) assocs.get(i);
if (ast.role1 != null && ast.role1.length() > 0)
{ Entity ent1 = ast.getEntity1();
res.add(ent1);
}
}
return res;
}
public String getRole1()
{ return role1; }
public String getRole2()
{ return role2; }
public int getCard1()
{ return card1; }
public int getCard2()
{ return card2; }
public boolean isAggregation()
{ return aggregation; }
public boolean isClassScope()
{ return !instanceScope; }
public boolean isSingleValued()
{ return card2 == ONE; }
public void addConstraint(Constraint con)
{ constraints.add(con); }
public void setInstanceScope(boolean iscope)
{ instanceScope = iscope; }
public boolean getInstanceScope()
{ return instanceScope; }
public boolean isOrdered()
{ return ordered; }
public boolean isSorted()
{ return sortedAsc; }
public boolean isInjective()
{ return card1 == ZEROONE && card2 == ONE; }
public boolean isManyMany()
{ return card1 == MANY && card2 == MANY; }
public boolean isManyOne() // either way round
{ return card1 == MANY && card2 == ONE ||
card1 == ONE && card2 == MANY;
}
public boolean isOneMany()
{ return card1 == ONE && card2 == MANY; }
public boolean isZeroOneMany()
{ return card1 == ZEROONE && card2 == MANY; }
public boolean isZeroOne()
{ return card2 == ZEROONE; }
public boolean isMany()
{ return card2 == MANY; }
public boolean isOptional()
{ return card2 == ZEROONE || card2 == MANY; }
public boolean isMandatory()
{ return card2 == ONE || card2 > 1; }
public boolean isPersistent()
{ return hasStereotype("persistent"); }
public void setPersistent(boolean b)
{ if (b)
{ addStereotype("persistent"); }
else
{ removeStereotype("persistent"); }
}
public boolean isExplicit()
{ return hasStereotype("explicit"); } // default
public boolean isImplicit()
{ return hasStereotype("implicit"); }
public boolean isSource()
{ return hasStereotype("source"); }
public boolean isTarget()
{ return hasStereotype("target"); }
public boolean isDerived()
{ return hasStereotype("derived"); }
public boolean isQualified()
{ return qualifier != null; }
public Attribute getQualifier()
{ return qualifier; }
public Vector getConstraints()
{ return constraints; }
public void setRole1(String r1)
{ role1 = r1; }
public void setRole2(String r2)
{ role2 = r2; }
public void setCard1(int c1)
{ card1 = c1; }
public void setCard2(int c2)
{ card2 = c2; }
public Type getType2()
{ Type e2type = new Type(entity2);
if (card2 == ONE)
{ return e2type; }
Type res;
if (ordered)
{ res = new Type("Sequence", null); }
else
{ res = new Type("Set",null); }
res.setElementType(e2type);
return res;
}
public Type getRole2Type()
{ Type e2type = new Type(entity2);
if (isQualified())
{ if (card2 == ONE)
{ Type mapres = new Type("Map",null);
mapres.setKeyType(new Type("String",null));
mapres.setElementType(e2type);
}
Type res;
if (ordered)
{ res = new Type("Sequence", null); }
else
{ res = new Type("Set",null); }
Type mres = new Type("Map", null);
mres.setKeyType(new Type("String",null));
mres.setElementType(res);
return mres;
}
else
{ return getType2(); }
}
public void setOrdered(boolean ord)
{ ordered = ord;
if (ordered == true)
{ addStereotype("ordered"); }
else
{ removeStereotype("ordered"); }
}
public void setSorted(String direction)
{ if (direction.equals("<"))
{ sortedAsc = true;
addStereotype("sorted<");
}
else if (direction.equals(">"))
{ sortedDesc = true;
addStereotype("sorted>");
}
}
public void setAddOnly(boolean ao)
{ addOnly = ao;
if (addOnly == true)
{ addStereotype("addOnly"); }
else
{ removeStereotype("addOnly"); }
}
public void setFrozen(boolean froz)
{ frozen = froz;
if (frozen == true)
{ addStereotype("readOnly"); }
else
{ removeStereotype("readOnly"); }
}
public boolean isFrozen()
{ return frozen; }
public boolean isAddOnly()
{ return addOnly; }
public String subsets()
{ String res = "";
// System.out.println(stereotypes);
if (stereotypes.size() > 0)
{ String stereo = (String) stereotypes.get(0);
if (stereo.length() > 6 && "subsets".equals(stereo.substring(0,7)))
{ return stereo.substring(7,stereo.length()); }
}
return res;
}
public Association getOpposite()
{ return entity2.getDefinedRole(role1); }
// for write frames:
public static String getOppositeEnd(String rle, Entity e, Vector assocs)
{ for (int i = 0; i < assocs.size(); i++)
{ Association a = (Association) assocs.get(i);
if (rle.equals(a.getRole1()) && e == a.getEntity2())
{ String rle2 = a.getRole2();
if (rle2 != null && rle2.length() > 0)
{ return a.getEntity1() + "::" + rle2; }
}
if (rle.equals(a.getRole2()) && e == a.getEntity1())
{ String rle1 = a.getRole1();
if (rle1 != null && rle1.length() > 0)
{ return a.getEntity2() + "::" + rle1; }
}
}
return null;
}
public static Vector getManyOneAssociations(Vector asts)
{ Vector res = new Vector();
for (int i = 0; i < asts.size(); i++)
{ Association ast = (Association) asts.get(i);
// if (ast.isManyOne())
if (ast.getCard1() == ONE && ast.getCard2() == MANY)
{ res.add(ast); }
else if (ast.getCard2() == ONE && ast.getCard1() == MANY)
{ res.add(ast); }
}
return res;
}
public static Vector getManyManyAssociations(Vector asts)
{ Vector res = new Vector();
for (int i = 0; i < asts.size(); i++)
{ Association ast = (Association) asts.get(i);
// if (ast.isManyMany())
if (ast.getCard1() == MANY && ast.getCard2() == MANY)
{ res.add(ast); }
// else if (ast.getCard2() == ONE && ast.getCard1() == MANY)
// { res.add(ast); } // also consider ZEROONE?
}
return res;
}
public boolean hasEnd(Entity e)
{ return ((e == entity1) || (e == entity2)); }
public Vector hasNamedEnds(Entity e)
{ Vector res = new Vector();
if (e == entity1 && role1 != null && role1.length() > 0)
{ res.add(role1); }
if (e == entity2)
{ if (res.contains(role2)) { }
else
{ res.add(role2); }
}
return res;
}
// public boolean isLinkedTo(Association ast)
// { return (hasEnd(ast.getEntity1()) || hasEnd(ast.getEntity2())); }
public boolean isLinkedTo(Association ast)
{ return entity1.equals(ast.getEntity1()) ||
entity1.equals(ast.getEntity2()) ||
entity2.equals(ast.getEntity1()) ||
entity2.equals(ast.getEntity2());
}
public boolean linkedToAny(List rels)
{ for (int i = 0; i < rels.size(); i++)
{ Association ast = (Association) rels.get(i);
if (isLinkedTo(ast))
{ return true; }
}
return false;
}
public static Vector getEndpoints(Vector rels)
{ Vector res = new Vector();
for (int i = 0; i < rels.size(); i++)
{ Association ast = (Association) rels.get(i);
res.add(ast.getEntity1());
res.add(ast.getEntity2());
}
return res;
}
public static List reorderFromSource(String src,
List assocs)
{ // places those r : assocs that have entity1 or 2
// with name src first in the list, then those
// r linked to these, etc. Puts groups of linked
// rels together even if not connected to src
List oldrels = (List) ((Vector) assocs).clone();
List res = new Vector();
for (int i = 0; i < assocs.size(); i++)
{ Association ast = (Association) assocs.get(i);
Entity e1 = ast.getEntity1();
Entity e2 = ast.getEntity2();
if (e1.getName().equals(src) ||
e2.getName().equals(src))
{ res.add(ast); }
}
// res is now all rels linked direct to src
oldrels.removeAll(res);
List newrels;
do
{ newrels = new Vector();
for (int j = 0; j < oldrels.size(); j++)
{ Association ast = (Association) oldrels.get(j);
if (ast.linkedToAny(res))
{ newrels.add(ast); }
}
oldrels.removeAll(newrels);
res.addAll(newrels);
} while (newrels.size() > 0);
// res is all rels connected to src
while (oldrels.size() > 0)
{ Object r = oldrels.get(0);
oldrels.remove(0);
Vector v = new Vector();
v.add(r);
res.addAll(findConnected(v,oldrels));
}
return res;
}
private static List findConnected(List rels, List oldrels)
{ // finds group of all r:oldrels connected to any x:rels
List res = (List) ((Vector) rels).clone();
List newrels;
do
{ newrels = new Vector();
for (int j = 0; j < oldrels.size(); j++)
{ Association ast = (Association) oldrels.get(j);
if (ast.linkedToAny(res))
{ newrels.add(ast); }
}
oldrels.removeAll(newrels);
res.addAll(newrels);
} while (newrels.size() > 0);
// res is all rels connected to src
return res;
}
public static void main(String[] args)
{ Entity e1 = new Entity("e1");
Entity e2 = new Entity("e2");
Entity e3 = new Entity("e3");
Entity e4 = new Entity("e4");
Entity e5 = new Entity("e5");
Entity e6 = new Entity("e6");
Entity e7 = new Entity("e7");
String r = "";
Association a1 = new Association(e1,e2,0,0,r,r);
Association a2 = new Association(e3,e4,0,0,r,r);
Association a3 = new Association(e4,e5,0,0,r,r);
Association a4 = new Association(e4,e6,0,0,r,r);
Association a5 = new Association(e1,e1,0,0,r,r);
Association a6 = new Association(e7,e7,0,0,r,r);
Vector rels = new Vector();
rels.add(a1);
rels.add(a2);
rels.add(a3);
rels.add(a4);
rels.add(a5);
rels.add(a6);
System.out.println(reorderFromSource("e3",rels));
String stereo = "subsetsrr";
if (stereo.length() > 6 && "subsets".equals(stereo.substring(0,7)))
{ System.out.println(stereo.substring(7,stereo.length())); }
}
public void generateJava(PrintWriter out)
{ String qual = "";
String initialiser = " = new Vector()";
if (frozen)
{ qual = "final ";
initialiser = "";
}
if (role2 != null) // attribute of entity1
{ if (entity1.isAbstract())
{ out.print(" protected " + qual); }
else
{ out.print(" private " + qual); }
if (qualifier != null)
{ out.println("java.util.HashMap " + role2 + " = new java.util.HashMap();"); }
else if (card2 == ONE && entity2 != null &&
initialExpression != null)
{ java.util.HashMap env = new java.util.HashMap();
out.println(entity2.getName() + " " + role2 + " = " +
initialExpression + ";");
}
else if (card2 == ONE && entity2 != null)
{ out.println(entity2.getName() + " " + role2 + ";"); }
else if (entity2 != null)
{ out.println("List " +
role2 + initialiser + "; // of " +
entity2.getName());
}
else
{ out.println("Object " + role2 + "; // Undefined class type"); }
}
} // not valid for a..b a > 0. Should be array then?
public void generateJava6(PrintWriter out)
{ String qual = "";
String initialiser = "";
if (ordered)
{ initialiser = " = new ArrayList()"; }
else
{ initialiser = " = new HashSet()"; }
if (frozen)
{ qual = "final ";
initialiser = "";
}
if (role2 != null) // attribute of entity1
{ if (entity1.isAbstract())
{ out.print(" protected " + qual); }
else
{ out.print(" private " + qual); }
if (qualifier != null)
{ out.println("java.util.HashMap " + role2 + " = new java.util.HashMap();"); }
else if (card2 == ONE && initialExpression != null)
{ java.util.HashMap env = new java.util.HashMap();
out.println(entity2.getName() + " " + role2 + " = " +
initialExpression + ";");
}
else if (card2 == ONE)
{ out.println(entity2.getName() + " " + role2 + ";"); }
else if (ordered)
{ out.println("ArrayList " +
role2 + initialiser + "; // of " +
entity2.getName());
}
else
{ out.println("HashSet " +
role2 + initialiser + "; // of " +
entity2.getName());
}
}
} // not valid for a..b a > 0. Should be array then?
public void generateJava7(PrintWriter out)
{ String qual = "";
String e2name = entity2.getName();
String initialiser = "";
String reltype = e2name;
if (card2 == ONE)
{ initialiser = " = null";
reltype = e2name;
}
else if (ordered)
{ initialiser = " = new ArrayList<" + e2name + ">()";
reltype = "ArrayList<" + e2name + ">";
}
else if (sortedAsc)
{ initialiser = " = new TreeSet<" + e2name + ">()";
reltype = "TreeSet<" + e2name + ">";
}
else
{ initialiser = " = new HashSet<" + e2name + ">()";
reltype = "HashSet<" + e2name + ">";
}
if (frozen)
{ qual = "final ";
initialiser = "";
}
if (role2 != null) // attribute of entity1
{ if (entity1.isAbstract())
{ out.print(" protected " + qual); }
else
{ out.print(" private " + qual); }
// Type t2 = getType2();
// String j2type = t2.getJava7(t2.getElementType());
if (qualifier != null)
{ out.println("java.util.HashMap<String, " + reltype + "> " + role2 +
" = new java.util.HashMap<String, " + reltype + ">();");
}
else if (card2 == ONE && initialExpression != null)
{ java.util.HashMap env = new java.util.HashMap();
out.println(entity2.getName() + " " + role2 + " = " +
initialExpression + ";");
}
else if (card2 == ONE)
{ out.println(entity2.getName() + " " + role2 + ";"); }
else
{ out.println(reltype + " " +
role2 + initialiser + "; // of " +
entity2.getName());
}
}
} // not valid for a..b a > 0. Should be array then?
public void generateCSharp(PrintWriter out)
{ String qual = "";
String initialiser = " = new ArrayList()";
if (frozen)
{ qual = "const ";
initialiser = "";
}
if (role2 != null) // attribute of entity1
{ if (entity1.isAbstract())
{ out.print(" protected " + qual); }
else
{ out.print(" private " + qual); }
if (qualifier != null)
{ out.println("Hashtable " + role2 + " = new Hashtable();"); }
else if (card2 == ONE)
{ out.println(entity2.getName() + " " + role2 + ";"); }
else
{ out.println("ArrayList " +
role2 + initialiser + "; // of " +
entity2.getName());
}
}
} // not valid for a..b a > 0. Should be array then?
public void generateCPP(PrintWriter out)
{ String qual = "";
// String initialiser = " = new Vector()";
if (frozen)
{ qual = "const ";
// initialiser = "";
}
String e2name = entity2.getName() + "*";
out.print(" " + qual);
if (role2 != null) // attribute of entity1
{ if (qualifier != null)
{ if (card2 == ONE)
{ out.println("map<string," + e2name + ">* " + role2 + ";"); }
else if (ordered)
{ out.println("map<string, vector<" + e2name + ">*>* " + role2 + ";"); }
else
{ out.println("map<string, std::set<" + e2name + ">*>* " + role2 + ";"); }
}
else if (card2 == ONE)
{ out.println(e2name + " " + role2 + ";"); }
else if (ordered)
{ out.println("vector<" + e2name + ">* " + role2 + ";"); }
else
{ out.println("std::set<" + e2name + ">* " + role2 + ";"); }
}
} // not valid for a..b a > 0. Should be array then?
public void generateInterfaceJava(PrintWriter out)
{ out.print(" // ");
String qual = "";
String initialiser = " = new ArrayList()";
if (frozen)
{ qual = "final ";
initialiser = "";
}
if (role2 != null) // attribute of entity1
{ out.print(" protected " + qual);
if (qualifier != null)
{ out.println("java.util.Map " + role2 + " = new java.util.HashMap();"); }
else if (card2 == ONE)
{ out.println(entity2.getName() + " " +
role2 + ";");
}
else
{ out.println("List " +
role2 + initialiser + "; // of " +
entity2.getName());
}
}
} // not valid for a..b a > 0. Should be array then?
public void generateInterfaceJava6(PrintWriter out)
{ out.print(" // ");
String qual = "";
String initialiser = "";
if (ordered)
{ initialiser = " = new ArrayList()"; }
else
{ initialiser = " = new HashSet()"; }
if (frozen)
{ qual = "final ";
initialiser = "";
}
if (role2 != null) // attribute of entity1
{ out.print(" protected " + qual);
if (qualifier != null)
{ out.println("java.util.Map " + role2 + " = new java.util.HashMap();"); }
else if (card2 == ONE)
{ out.println(entity2.getName() + " " +
role2 + ";");
}
else if (ordered)
{ out.println("ArrayList " +
role2 + initialiser + "; // of " +
entity2.getName());
}
else
{ out.println("HashSet " +
role2 + initialiser + "; // of " +
entity2.getName());
}
}
} // not valid for a..b a > 0. Should be array then?
public void generateInterfaceJava7(PrintWriter out)
{ out.print(" // ");
String qual = "";
String e2name = entity2.getName();
String initialiser = "";
String reltype = e2name;
if (ordered)
{ initialiser = " = new ArrayList<" + e2name + ">()";
reltype = "ArrayList<" + e2name + ">";
}
else if (sortedAsc)
{ initialiser = " = new TreeSet<" + e2name + ">()";
reltype = "TreeSet<" + e2name + ">";
}
else
{ initialiser = " = new HashSet<" + e2name + ">()";
reltype = "HashSet<" + e2name + ">";
}
if (frozen)
{ qual = "final ";
initialiser = "";
}
if (role2 != null) // attribute of entity1
{ out.print(" protected " + qual);
// Type t2 = getType2();
// String j2type = t2.getJava7(t2.getElementType());
if (qualifier != null)
{ out.println("java.util.Map<String, " + reltype + "> " + role2 +
" = new java.util.HashMap<String, " + reltype + ">();");