Mercurial > hg > release > icedtea7-forest-2.0 > jaxws
view sources/jaxws_src/src/com/sun/xml/internal/bind/v2/runtime/reflect/NullSafeAccessor.java @ 286:5d45300e33bb
7034918: Integrate JAX-WS 2.2.4-b01 in to JDK 7
author | andrew |
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date | Wed, 28 Sep 2011 01:59:37 +0100 |
parents | dc83adaaef79 |
children |
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/* * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.sun.xml.internal.bind.v2.runtime.reflect; import com.sun.xml.internal.bind.api.AccessorException; /** * {@link Accessor} wrapper that replaces a null with an empty collection. * * <p> * This is so that JAX-WS property accessor will work like an ordinary getter. * * * @author Kohsuke Kawaguchi */ public class NullSafeAccessor<B,V,P> extends Accessor<B,V> { private final Accessor<B,V> core; private final Lister<B,V,?,P> lister; public NullSafeAccessor(Accessor<B,V> core, Lister<B,V,?,P> lister) { super(core.getValueType()); this.core = core; this.lister = lister; } public V get(B bean) throws AccessorException { V v = core.get(bean); if(v==null) { // creates a new object P pack = lister.startPacking(bean,core); lister.endPacking(pack,bean,core); v = core.get(bean); } return v; } public void set(B bean, V value) throws AccessorException { core.set(bean,value); } }