/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.beans.metadata.plugins;
import javax.xml.bind.annotation.XmlType;
import org.jboss.beans.metadata.spi.MetaDataVisitor;
import org.jboss.dependency.plugins.AbstractDependencyItem;
import org.jboss.dependency.spi.Controller;
import org.jboss.dependency.spi.ControllerContext;
import org.jboss.dependency.spi.ControllerState;
import org.jboss.dependency.spi.DependencyItem;
import org.jboss.reflect.spi.TypeInfo;
import org.jboss.xb.annotations.JBossXmlNoElements;
/**
* Dependency value.
*
* @author <a href="ales.justin@jboss.com">Ales Justin</a>
* @author <a href="adrian@jboss.com">Adrian Brock</a>
* @version $Revision: 96740 $
*/
@XmlType(name="")
@JBossXmlNoElements
public class ThisValueMetaData extends AbstractValueMetaData
{
private static final long serialVersionUID = 3L;
/** The context */
protected transient ControllerContext context;
/**
* Create a new dependency value
*/
public ThisValueMetaData()
{
}
public Object getValue(TypeInfo info, ClassLoader cl) throws Throwable
{
Controller controller = context.getController();
ControllerContext lookup = controller.getContext(getUnderlyingValue(), ControllerState.INSTANTIATED);
if (lookup == null)
throw new Error("Could not deference this " + this);
// TODO - add progression, see BeanMetaData, InjectionMetaData
return getTarget(context, lookup);
}
@Override
public Object ungetValue(TypeInfo info, ClassLoader cl) throws Throwable
{
Controller controller = context.getController();
ControllerContext lookup = controller.getContext(getUnderlyingValue(), ControllerState.INSTANTIATED);
if (lookup != null)
ungetTarget(this.context, lookup);
return super.ungetValue(info, cl);
}
public void initialVisit(MetaDataVisitor visitor)
{
context = visitor.getControllerContext();
setValue(context.getName());
ControllerState whenRequired = visitor.getContextState();
DependencyItem item = new AbstractDependencyItem(getUnderlyingValue(), getUnderlyingValue(), whenRequired, ControllerState.INSTANTIATED);
visitor.addDependency(item);
super.initialVisit(visitor);
}
public ThisValueMetaData clone()
{
return (ThisValueMetaData)super.clone();
}
}