1 /*
   2  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.tools.internal.xjc.api.impl.s2j;
  27 
  28 import javax.xml.bind.JAXBElement;
  29 import javax.xml.namespace.QName;
  30 
  31 import com.sun.codemodel.internal.JType;
  32 import com.sun.codemodel.internal.JBlock;
  33 import com.sun.codemodel.internal.JVar;
  34 import com.sun.codemodel.internal.JConditional;
  35 import com.sun.codemodel.internal.JExpr;
  36 import com.sun.codemodel.internal.JExpression;
  37 import com.sun.codemodel.internal.JCodeModel;
  38 import com.sun.codemodel.internal.JInvocation;
  39 import com.sun.tools.internal.xjc.outline.Aspect;
  40 import com.sun.tools.internal.xjc.outline.FieldOutline;
  41 import com.sun.tools.internal.xjc.outline.FieldAccessor;
  42 import com.sun.tools.internal.xjc.model.CElementInfo;
  43 
  44 /**
  45  * {@link ElementAdapter} that works with a single {@link JAXBElement}.
  46  *
  47  * @author Kohsuke Kawaguchi
  48  */
  49 final class ElementSingleAdapter extends ElementAdapter {
  50     public ElementSingleAdapter(FieldOutline core, CElementInfo ei) {
  51         super(core, ei);
  52     }
  53 
  54     public JType getRawType() {
  55         return ei.getContentInMemoryType().toType(outline(), Aspect.EXPOSED);
  56     }
  57 
  58     public FieldAccessor create(JExpression targetObject) {
  59         return new FieldAccessorImpl(targetObject);
  60     }
  61 
  62     final class FieldAccessorImpl extends ElementAdapter.FieldAccessorImpl {
  63         public FieldAccessorImpl(JExpression target) {
  64             super(target);
  65         }
  66 
  67         public void toRawValue(JBlock block, JVar $var) {
  68             // [RESULT]
  69             // if([core.hasSetValue])
  70             //   $var = [core.toRawValue].getValue();
  71             // else
  72             //   $var = null;
  73 
  74             JConditional cond = block._if(acc.hasSetValue());
  75             JVar $v = cond._then().decl(core.getRawType(), "v" + hashCode());// TODO: unique value control
  76             acc.toRawValue(cond._then(),$v);
  77             cond._then().assign($var,$v.invoke("getValue"));
  78             cond._else().assign($var, JExpr._null());
  79         }
  80 
  81         public void fromRawValue(JBlock block, String uniqueName, JExpression $var) {
  82             // [RESULT]
  83             // [core.fromRawValue](new JAXBElement(tagName, TYPE, $var));
  84 
  85             acc.fromRawValue(block,uniqueName, createJAXBElement($var));
  86         }
  87     }
  88 }