001 // Copyright 2008 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.internal.services; 016 017 import org.apache.tapestry5.ValueEncoder; 018 import org.apache.tapestry5.ioc.services.TypeCoercer; 019 import org.apache.tapestry5.services.ValueEncoderFactory; 020 021 /** 022 * Provides {@link org.apache.tapestry5.ValueEncoder} instances that are backed by the {@link 023 * org.apache.tapestry5.ioc.services.TypeCoercer} service. 024 */ 025 public class TypeCoercedValueEncoderFactory implements ValueEncoderFactory<Object> 026 { 027 private final TypeCoercer typeCoercer; 028 029 public TypeCoercedValueEncoderFactory(TypeCoercer typeCoercer) 030 { 031 this.typeCoercer = typeCoercer; 032 } 033 034 public ValueEncoder<Object> create(final Class<Object> type) 035 { 036 return new ValueEncoder<Object>() 037 { 038 public String toClient(Object value) 039 { 040 return typeCoercer.coerce(value, String.class); 041 } 042 043 public Object toValue(String clientValue) 044 { 045 return typeCoercer.coerce(clientValue, type); 046 } 047 }; 048 } 049 }