// Copyright 2010 The Apache Software Foundation // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package org.apache.tapestry5.func; class LazyMappedValue<T, X> implements LazyValue<X> { private final Flow<T> flow; private final Mapper<T, X> mapper; public LazyMappedValue(Flow<T> input, Mapper<T, X> mapper) { this.flow = input; this.mapper = mapper; } @Override public X get() { return mapper.map(flow.first()); } }