    001    // Copyright 2010 The Apache Software Foundation
    002    //
    003    // Licensed under the Apache License, Version 2.0 (the "License");
    004    // you may not use this file except in compliance with the License.
    005    // You may obtain a copy of the License at
    006    //
    007    // http://www.apache.org/licenses/LICENSE-2.0
    008    //
    009    // Unless required by applicable law or agreed to in writing, software
    010    // distributed under the License is distributed on an "AS IS" BASIS,
    011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    012    // See the License for the specific language governing permissions and
    013    // limitations under the License.
    014
    015    package org.apache.tapestry5.ioc.util;
    016
    017    import org.apache.tapestry5.ioc.internal.util.TapestryException;
    018
    019    /**
    020     * Special exception used when a value (typically from a map) is referenced that does not exist. Uses a
    021     * {@link AvailableValues} object
    022     * to track what the known values are.
    023     *
    024     * @since 5.2.0
    025     */
    026    public class UnknownValueException extends TapestryException
    027    {
    028        private final AvailableValues availableValues;
    029
    030        public UnknownValueException(String message, AvailableValues availableValues)
    031        {
    032            this(message, null, null, availableValues);
    033        }
    034
    035        public UnknownValueException(String message, Object location, Throwable cause, AvailableValues availableValues)
    036        {
    037            super(message, location, cause);
    038
    039            this.availableValues = availableValues;
    040        }
    041
    042        public AvailableValues getAvailableValues()
    043        {
    044            return availableValues;
    045        }
    046
    047    }