/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2011 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package com.sun.tools.xjc.generator.bean.field;

import com.sun.codemodel.JBlock;
import com.sun.codemodel.JExpr;
import com.sun.codemodel.JExpression;
import com.sun.codemodel.JMethod;
import com.sun.codemodel.JPrimitiveType;
import com.sun.codemodel.JType;
import com.sun.codemodel.JVar;
import com.sun.tools.xjc.generator.bean.ClassOutlineImpl;
import com.sun.tools.xjc.generator.bean.MethodWriter;
import com.sun.tools.xjc.model.CPropertyInfo;
import com.sun.tools.xjc.outline.Aspect;
import com.sun.tools.xjc.outline.FieldAccessor;
import com.sun.xml.bind.api.impl.NameConverter;

/**
 * A required primitive property.
 * 
 * @author
 *     Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
 */
public class UnboxedField extends AbstractFieldWithVar {

    /**
     * The primitive version of {@link #implType} and {@link #exposedType}.
     */
    private final JPrimitiveType ptype;


    protected UnboxedField( ClassOutlineImpl outline, CPropertyInfo prop ) {
        super(outline,prop);
        // primitive types don't have this distintion
        assert implType==exposedType;

        ptype = (JPrimitiveType) implType;
        assert ptype!=null;
        
        createField();

        // apparently a required attribute can be still defaulted.
        // so this assertion is incorrect.
        // assert prop.defaultValue==null;

        MethodWriter writer = outline.createMethodWriter();
        NameConverter nc = outline.parent().getModel().getNameConverter();

        JBlock body;
        
        // [RESULT]
        // Type getXXX() {
        //     return value;
        // }
        JMethod $get = writer.declareMethod( ptype, getGetterMethod() );
        String javadoc = prop.javadoc;
        if(javadoc.length()==0)
            javadoc = Messages.DEFAULT_GETTER_JAVADOC.format(nc.toVariableName(prop.getName(true)));
        writer.javadoc().append(javadoc);

        $get.body()._return(ref());


        // [RESULT]
        // void setXXX( Type value ) {
        //     this.value = value;
        // }
        JMethod $set = writer.declareMethod( codeModel.VOID, "set"+prop.getName(true) );
        JVar $value = writer.addParameter( ptype, "value" );
        body = $set.body();
        body.assign(JExpr._this().ref(ref()),$value);
        // setter always get the default javadoc. See issue #381
        writer.javadoc().append(Messages.DEFAULT_SETTER_JAVADOC.format(nc.toVariableName(prop.getName(true))));

    }

    protected JType getType(Aspect aspect) {
        return super.getType(aspect).boxify().getPrimitiveType();
    }

    protected JType getFieldType() {
        return ptype;
    }

    public FieldAccessor create(JExpression targetObject) {
        return new Accessor(targetObject) {
            
            public void unsetValues( JBlock body ) {
                // you can't unset a value
            }
            
            public JExpression hasSetValue() {
                return JExpr.TRUE;
            }
        };
    }
}
