Package org.teiid.query.processor.proc

Source Code of org.teiid.query.processor.proc.ContinueInstruction

/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership.  Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library 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 library 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/

/*
*/
package org.teiid.query.processor.proc;

import org.teiid.client.plan.PlanNode;
import org.teiid.core.TeiidComponentException;

/**
* <p>This {@link ProgramInstruction} continue with the next loop when processed</p>.
*/
public class ContinueInstruction extends ProgramInstruction {
    public String toString() {
        return "CONTINUE INSTRUCTION"; //$NON-NLS-1$
    }

    public void process(ProcedurePlan env) throws TeiidComponentException {
        Program parentProgram = env.peek();
       
        //find the parent program that contains the loop/while instruction
        while(true){           
            if(parentProgram.getCurrentInstruction() instanceof RepeatedInstruction){
                break;
            }
            env.pop();
            parentProgram = env.peek();
        }
    }
   
    public PlanNode getDescriptionProperties() {
        return new PlanNode("CONTINUE"); //$NON-NLS-1$
    }
   
}
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