/*
* 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.spi;
import org.jboss.dependency.spi.ControllerState;
import org.jboss.dependency.spi.DependencyItem;
import org.jboss.kernel.spi.dependency.KernelControllerContext;
/**
* A metadata vistor.
*
* TODO extend into a real visitor pattern and provide
* abstract implementation to avoid instanceof processing
* @author <a href="adrian@jboss.com">Adrian Brock</a>
* @version $Revision: 1.3 $
*/
public interface MetaDataVisitor
{
/**
* Get the kernel controller context
*
* @return the context
*/
KernelControllerContext getControllerContext();
/**
* Get the context state
*
* @return the context state
*/
ControllerState getContextState();
/**
* Set the context state
*
* @param contextState the context state
*/
void setContextState(ControllerState contextState);
/**
* Add a dependency
*
* @param dependency the dependency
*/
void addDependency(DependencyItem dependency);
/**
* Visit the node
*
* @param node the node
*/
void visit(MetaDataVisitorNode node);
}
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