/*
* 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.jbpm.pvm.impl;
import java.util.Iterator;
import java.util.List;
import org.jbpm.pvm.VariableScope;
/**
* @author Tom Baeyens
*/
public class VariableScopeIterator extends ExecutionScopeIterator implements Iterator<VariableScope> {
private String key;
public VariableScopeIterator(ExecutionImpl execution) {
super(execution);
}
public VariableScopeIterator(ExecutionImpl execution, String key) {
super(execution);
this.key = key;
}
protected List getScopeListFromExecution() {
return execution.getVariableScopes();
}
protected boolean isWanted(Object executionScope) {
VariableScope variableScope = (VariableScope) executionScope;
return ( (key==null)
|| (variableScope.has(key))
);
}
public VariableScope next() {
return (VariableScope) super.next();
}
}