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;
016    
017    import java.util.List;
018    
019    /**
020     * Wrapper around a {@link ValidationTracker} that delegates all methods to the wrapped instance.
021     * Subclasses will often override specific methods.
022     * 
023     * @since 5.2.0
024     */
025    public class ValidationTrackerWrapper implements ValidationTracker
026    {
027        private final ValidationTracker delegate;
028    
029        public ValidationTrackerWrapper(ValidationTracker delegate)
030        {
031            this.delegate = delegate;
032        }
033    
034        public void clear()
035        {
036            delegate.clear();
037        }
038    
039        public String getError(Field field)
040        {
041            return delegate.getError(field);
042        }
043    
044        public List<String> getErrors()
045        {
046            return delegate.getErrors();
047        }
048    
049        public boolean getHasErrors()
050        {
051            return delegate.getHasErrors();
052        }
053    
054        public String getInput(Field field)
055        {
056            return delegate.getInput(field);
057        }
058    
059        public boolean inError(Field field)
060        {
061            return delegate.inError(field);
062        }
063    
064        public void recordError(Field field, String errorMessage)
065        {
066            delegate.recordError(field, errorMessage);
067        }
068    
069        public void recordError(String errorMessage)
070        {
071            delegate.recordError(errorMessage);
072        }
073    
074        public void recordInput(Field field, String input)
075        {
076            delegate.recordInput(field, input);
077        }
078    
079        /** Returns the instance to which methods are delegated. */
080        protected ValidationTracker getDelegate()
081        {
082            return delegate;
083        }
084    }