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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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package com.sun.xml.internal.bind.v2.model.impl;

import java.util.Collections;

import java.util.List;

import javax.xml.bind.annotation.XmlList;

import com.sun.xml.internal.bind.v2.model.core.ID;

import com.sun.xml.internal.bind.v2.model.core.NonElement;

import com.sun.xml.internal.bind.v2.model.core.PropertyInfo;

import com.sun.xml.internal.bind.v2.model.runtime.RuntimeNonElementRef;

import com.sun.xml.internal.bind.v2.model.runtime.RuntimePropertyInfo;

import com.sun.xml.internal.bind.v2.runtime.IllegalAnnotationException;

import com.sun.xml.internal.bind.v2.runtime.Transducer;

import com.sun.xml.internal.bind.v2.runtime.reflect.Accessor;

/**

 * {@link PropertyInfoImpl} that can only have one type.

 *

 * Specifically, {@link AttributePropertyInfoImpl} and {@link ValuePropertyInfoImpl}.

 *

 * @author Kohsuke Kawaguchi

 */

abstract class SingleTypePropertyInfoImpl<T,C,F,M>

    extends PropertyInfoImpl<T,C,F,M> {

    /**

     * Computed lazily.

     *

     * @see {@link #getTarget()}.

     */

    private NonElement<T,C> type;

    public SingleTypePropertyInfoImpl(ClassInfoImpl<T,C,F,M> classInfo, PropertySeed<T,C,F,M> seed) {

        super(classInfo, seed);

        if(this instanceof RuntimePropertyInfo) {

            Accessor rawAcc = ((RuntimeClassInfoImpl.RuntimePropertySeed)seed).getAccessor();

            if(getAdapter()!=null && !isCollection())

                // adapter for a single-value property is handled by accessor.

                // adapter for a collection property is handled by lister.

                rawAcc = rawAcc.adapt(((RuntimePropertyInfo)this).getAdapter());

            this.acc = rawAcc;

        } else

            this.acc = null;

    }

    public List<? extends NonElement<T,C>> ref() {

        return Collections.singletonList(getTarget());

    }

    public NonElement<T,C> getTarget() {

        if(type==null) {

            assert parent.builder!=null : "this method must be called during the build stage";

            type = parent.builder.getTypeInfo(getIndividualType(),this);

        }

        return type;

    }

    public PropertyInfo<T,C> getSource() {

        return this;

    }

    public void link() {

        super.link();

        if (!(NonElement.ANYTYPE_NAME.equals(type.getTypeName()) || type.isSimpleType() || id()==ID.IDREF)) {

                parent.builder.reportError(new IllegalAnnotationException(

                Messages.SIMPLE_TYPE_IS_REQUIRED.format(),

                seed

            ));

        }

        if(!isCollection() && seed.hasAnnotation(XmlList.class)) {

            parent.builder.reportError(new IllegalAnnotationException(

                Messages.XMLLIST_ON_SINGLE_PROPERTY.format(), this

            ));

        }

    }

//

//

// technically these code belong to runtime implementation, but moving the code up here

// allows this to be shared between RuntimeValuePropertyInfoImpl and RuntimeAttributePropertyInfoImpl

//

//

    private final Accessor acc;

    /**

     * Lazily created.

     */

    private Transducer xducer;

    public Accessor getAccessor() {

        return acc;

    }

    public Transducer getTransducer() {

        if(xducer==null) {

            xducer = RuntimeModelBuilder.createTransducer((RuntimeNonElementRef)this);

            if(xducer==null) {

                // this situation is checked by by the link method.

                // avoid repeating the same error by silently recovering

                xducer = RuntimeBuiltinLeafInfoImpl.STRING;

            }

        }

        return xducer;

    }

}