/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file 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.ejb.plugins.cmp.ejbql;
import java.util.List;
import org.jboss.ejb.plugins.cmp.bridge.EntityBridge;
import org.jboss.ejb.plugins.cmp.bridge.FieldBridge;
import org.jboss.ejb.plugins.cmp.bridge.CMPFieldBridge;
import org.jboss.ejb.plugins.cmp.bridge.CMRFieldBridge;
/**
* This abstract syntax node represents a path declaration.
*
* @author <a href="mailto:dain@daingroup.com">Dain Sundstrom</a>
* @version $Revision: 81030 $
*/
public final class ASTPath extends SimpleNode
{
public List pathList;
public List fieldList;
public int type;
public boolean innerJoin;
public ASTPath(int id)
{
super(id);
}
public String getPath()
{
return (String) pathList.get(pathList.size() - 1);
}
public String getPath(int i)
{
return (String) pathList.get(i);
}
public FieldBridge getField()
{
return (FieldBridge) fieldList.get(fieldList.size() - 1);
}
public boolean isCMPField()
{
return fieldList.get(fieldList.size() - 1) instanceof CMPFieldBridge;
}
public CMPFieldBridge getCMPField()
{
return (CMPFieldBridge) fieldList.get(fieldList.size() - 1);
}
public boolean isCMRField()
{
return fieldList.get(fieldList.size() - 1) instanceof CMRFieldBridge;
}
public boolean isCMRField(int i)
{
return fieldList.get(i) instanceof CMRFieldBridge;
}
public CMRFieldBridge getCMRField()
{
return (CMRFieldBridge) fieldList.get(fieldList.size() - 1);
}
public CMRFieldBridge getCMRField(int i)
{
return (CMRFieldBridge) fieldList.get(i);
}
public EntityBridge getEntity()
{
Object field = fieldList.get(fieldList.size() - 1);
if(field instanceof CMRFieldBridge)
{
return ((CMRFieldBridge) field).getRelatedEntity();
}
else if(field instanceof EntityBridge)
{
return (EntityBridge) field;
}
else
{
return null;
}
}
public EntityBridge getEntity(int i)
{
Object field = fieldList.get(i);
if(field instanceof CMRFieldBridge)
{
return ((CMRFieldBridge) field).getRelatedEntity();
}
else if(field instanceof EntityBridge)
{
return (EntityBridge) field;
}
else
{
return null;
}
}
public int size()
{
return fieldList.size();
}
public String toString()
{
return pathList.get(pathList.size() - 1) + " <" + type + ">";
}
public boolean equals(Object o)
{
if(o instanceof ASTPath)
{
ASTPath path = (ASTPath) o;
return path.getPath().equals(getPath());
}
return false;
}
public int hashCode()
{
return getPath().hashCode();
}
/**
* Accept the visitor. *
*/
public Object jjtAccept(JBossQLParserVisitor visitor, Object data)
{
return visitor.visit(this, data);
}
}