/**
 * Copyright 2010 JBoss Inc
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.jbpm.workflow.core.node;

import org.jbpm.workflow.core.Constraint;
import org.jbpm.workflow.core.impl.ConnectionRef;

public class ConstraintTrigger extends Trigger implements Constrainable {

	private static final long serialVersionUID = 510l;

	private String constraint;
	private String header;

	public String getConstraint() {
		return constraint;
	}

	public void setConstraint(String constraint) {
		this.constraint = constraint;
	}

    public String getHeader() {
		return header;
	}

	public void setHeader(String header) {
		this.header = header;
	}

	public void addConstraint(ConnectionRef connection, Constraint constraint) {
    	if (connection != null) {
    		throw new IllegalArgumentException(
				"A constraint trigger only accepts one simple constraint");
    	}
        this.constraint =  constraint.getConstraint();
    }
	
}
