1 /*
   2  * Copyright (c) 1997, 2011, 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.generator.bean.field;
  27 
  28 import com.sun.codemodel.internal.JBlock;
  29 import com.sun.codemodel.internal.JExpression;
  30 import com.sun.codemodel.internal.JFieldRef;
  31 import com.sun.codemodel.internal.JFieldVar;
  32 import com.sun.codemodel.internal.JMod;
  33 import com.sun.codemodel.internal.JType;
  34 import com.sun.codemodel.internal.JVar;
  35 import com.sun.tools.internal.xjc.generator.bean.ClassOutlineImpl;
  36 import com.sun.tools.internal.xjc.model.CPropertyInfo;
  37 
  38 /**
  39  *
  40  *
  41  * @author
  42  *     Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com), Martin Grebac
  43  */
  44 abstract class AbstractFieldWithVar extends AbstractField {
  45 
  46     /**
  47      * Field declaration of the actual list object that we use
  48      * to store data.
  49      */
  50     private JFieldVar field;
  51 
  52     /**
  53      * Invoke {@link #createField()} after calling the
  54      * constructor.
  55      */
  56     AbstractFieldWithVar( ClassOutlineImpl outline, CPropertyInfo prop ) {
  57         super(outline,prop);
  58     }
  59 
  60     protected final void createField() {
  61         field = outline.implClass.field( JMod.PROTECTED,
  62             getFieldType(), prop.getName(false) );
  63 
  64         annotate(field);
  65     }
  66 
  67     /**
  68      * Gets the name of the getter method.
  69      *
  70      * <p>
  71      * This encapsulation is necessary because sometimes we use
  72      * {@code isXXXX} as the method name.
  73      */
  74     protected String getGetterMethod() {
  75         if (getOptions().enableIntrospection) {
  76             return ((getFieldType().isPrimitive() &&
  77                      getFieldType().boxify().getPrimitiveType()==codeModel.BOOLEAN) ?
  78                          "is":"get") + prop.getName(true);
  79         } else {
  80             return (getFieldType().boxify().getPrimitiveType()==codeModel.BOOLEAN?"is":"get")+prop.getName(true);
  81         }
  82     }
  83 
  84     /**
  85      * Returns the type used to store the value of the field in memory.
  86      */
  87     protected abstract JType getFieldType();
  88 
  89     protected JFieldVar ref() { return field; }
  90 
  91     public final JType getRawType() {
  92         return exposedType;
  93     }
  94 
  95     protected abstract class Accessor extends AbstractField.Accessor {
  96 
  97         protected Accessor(JExpression $target) {
  98             super($target);
  99             this.$ref = $target.ref(AbstractFieldWithVar.this.ref());
 100         }
 101 
 102         /**
 103          * Reference to the field bound by the target object.
 104          */
 105         protected final JFieldRef $ref;
 106 
 107         public final void toRawValue(JBlock block, JVar $var) {
 108             if (getOptions().enableIntrospection) {
 109                 block.assign($var,$target.invoke(getGetterMethod()));
 110             } else {
 111                 block.assign($var,$target.invoke(getGetterMethod()));
 112             }
 113         }
 114 
 115         public final void fromRawValue(JBlock block, String uniqueName, JExpression $var) {
 116             block.invoke($target,("set"+prop.getName(true))).arg($var);
 117         }
 118     }
 119 }