    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.func;
    016
    017    public class LazyZipValue<A, B> implements LazyValue<Tuple<A, B>>
    018    {
    019        private final Flow<A> aFlow;
    020
    021        private final Flow<B> bFlow;
    022
    023        public LazyZipValue(Flow<A> aFlow, Flow<B> bFlow)
    024        {
    025            this.aFlow = aFlow;
    026            this.bFlow = bFlow;
    027        }
    028
    029        public Tuple<A, B> get()
    030        {
    031            return new Tuple<A, B>(aFlow.first(), bFlow.first());
    032        }
    033    }