    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
    015package org.apache.tapestry5.commons.util;
    016
    017import org.apache.tapestry5.commons.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 */
    026public 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}