001// Copyright 2005 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.tapestry.valid; 016 017import org.apache.hivemind.ApplicationRuntimeException; 018import org.apache.hivemind.Location; 019import org.apache.hivemind.lib.BeanFactory; 020import org.apache.tapestry.IBinding; 021import org.apache.tapestry.IComponent; 022import org.apache.tapestry.binding.AbstractBindingFactory; 023 024/** 025 * Uses the tapestry.valid.ValidatorBeanFactory service to obtain configuration IValidator 026 * instances. 027 * 028 * @author Howard M. Lewis Ship 029 * @since 4.0 030 * @see org.apache.tapestry.valid.ValidatorBinding 031 */ 032public class ValidatorBindingFactory extends AbstractBindingFactory 033{ 034 private BeanFactory _validatorBeanFactory; 035 036 public void setValidatorBeanFactory(BeanFactory validatorBeanFactory) 037 { 038 _validatorBeanFactory = validatorBeanFactory; 039 } 040 041 /** 042 * Creates and returns a {@link ValidatorBinding}. Interprets the path as a bean initializer, 043 * used to locate a particular type of validator and a particular configuration of its 044 * properties. 045 */ 046 047 public IBinding createBinding(IComponent root, String bindingDescription, String expression, 048 Location location) 049 { 050 try 051 { 052 IValidator validator = (IValidator) _validatorBeanFactory.get(expression); 053 054 return new ValidatorBinding(bindingDescription, getValueConverter(), location, 055 validator); 056 } 057 catch (Exception ex) 058 { 059 throw new ApplicationRuntimeException(ex.getMessage(), location, ex); 060 } 061 } 062}