import com.sun.codemodel.internal.JForEach; //导入依赖的package包/类
public void toRawValue(JBlock block, JVar $var) {
    JCodeModel cm = outline().getCodeModel();
    JClass elementType = ei.toType(outline(),EXPOSED).boxify();

    // [RESULT]
    // $var = new ArrayList();
    // for( JAXBElement e : [core.toRawValue] ) {
    //   if(e==null)
    //     $var.add(null);
    //   else
    //     $var.add(e.getValue());
    // }

    block.assign($var,JExpr._new(cm.ref(ArrayList.class).narrow(itemType().boxify())));
    JVar $col = block.decl(core.getRawType(), "col" + hashCode());
    acc.toRawValue(block,$col);
    JForEach loop = block.forEach(elementType, "v" + hashCode()/*unique string handling*/, $col);

    JConditional cond = loop.body()._if(loop.var().eq(JExpr._null()));
    cond._then().invoke($var,"add").arg(JExpr._null());
    cond._else().invoke($var,"add").arg(loop.var().invoke("getValue"));
}
 

import com.sun.codemodel.internal.JForEach; //导入依赖的package包/类
public void fromRawValue(JBlock block, String uniqueName, JExpression $var) {
    JCodeModel cm = outline().getCodeModel();
    JClass elementType = ei.toType(outline(),EXPOSED).boxify();

    // [RESULT]
    // $t = new ArrayList();
    // for( Type e : $var ) {
    //     $var.add(new JAXBElement(e));
    // }
    // [core.fromRawValue]

    JClass col = cm.ref(ArrayList.class).narrow(elementType);
    JVar $t = block.decl(col,uniqueName+"_col",JExpr._new(col));

    JForEach loop = block.forEach(itemType(), uniqueName+"_i", $t);
    loop.body().invoke($var,"add").arg(createJAXBElement(loop.var()));

    acc.fromRawValue(block, uniqueName, $t);
}