    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
    015package org.apache.tapestry5.func;
    016
    017public 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    @Override
    030    public Tuple<A, B> get()
    031    {
    032        return new Tuple<A, B>(aFlow.first(), bFlow.first());
    033    }
    034}