001    // Copyright 2007 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.internal.services;
016    
017    import org.apache.tapestry5.ioc.Location;
018    import org.apache.tapestry5.ioc.Resource;
019    
020    /**
021     * Implementation of {@link Location} used when the underlying resource isn't really known.
022     */
023    public final class StringLocation implements Location
024    {
025        private final String description;
026    
027        private final int line;
028    
029        public StringLocation(String description, int line)
030        {
031            this.description = description;
032            this.line = line;
033        }
034    
035        @Override
036        public String toString()
037        {
038            return description;
039        }
040    
041        /**
042         * Returns 0.
043         */
044        public int getColumn()
045        {
046            return 0;
047        }
048    
049        public int getLine()
050        {
051            return line;
052        }
053    
054        /**
055         * Returns null; we don't know where the file really is (it's probably a class on the class path).
056         */
057        public Resource getResource()
058        {
059            return null;
060        }
061    
062    }