author | mkos |
Sun, 30 Dec 2012 00:00:00 +0100 | |
changeset 22678 | ac1ea46be942 |
parent 12009 | 4abb694f273a |
permissions | -rw-r--r-- |
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/* |
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8029237: Update copyright year to match last edit in jaxws repository for 2012
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* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package com.sun.xml.internal.bind.v2.runtime.reflect; |
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import com.sun.xml.internal.bind.api.AccessorException; |
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/** |
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* {@link Accessor} wrapper that replaces a null with an empty collection. |
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* |
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* <p> |
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* This is so that JAX-WS property accessor will work like an ordinary getter. |
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* |
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* |
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* @author Kohsuke Kawaguchi |
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*/ |
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public class NullSafeAccessor<B,V,P> extends Accessor<B,V> { |
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private final Accessor<B,V> core; |
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private final Lister<B,V,?,P> lister; |
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public NullSafeAccessor(Accessor<B,V> core, Lister<B,V,?,P> lister) { |
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super(core.getValueType()); |
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this.core = core; |
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this.lister = lister; |
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} |
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public V get(B bean) throws AccessorException { |
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V v = core.get(bean); |
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if(v==null) { |
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// creates a new object |
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P pack = lister.startPacking(bean,core); |
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lister.endPacking(pack,bean,core); |
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v = core.get(bean); |
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} |
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return v; |
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} |
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public void set(B bean, V value) throws AccessorException { |
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core.set(bean,value); |
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} |
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} |