8f523f3a10
* sources.am: Regenerated.
* Makefile.in: Likewise.
* scripts/makemake.tcl: Use glob -nocomplain.
From-SVN: r107049
135 lines
3.6 KiB
Java
135 lines
3.6 KiB
Java
/* gnuValueHolder.java --
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Copyright (C) 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.CORBA;
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import gnu.CORBA.CDR.Vio;
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import org.omg.CORBA.TypeCode;
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import org.omg.CORBA.ValueBaseHolder;
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import org.omg.CORBA.portable.BoxedValueHelper;
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import org.omg.CORBA.portable.InputStream;
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import org.omg.CORBA.portable.OutputStream;
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import java.io.Serializable;
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/**
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* Boxed value holder that also remembers the value type and the value helper.
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*
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* @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
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*/
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public class gnuValueHolder
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extends ValueBaseHolder
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{
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/**
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* The type code of the stored value.
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*/
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TypeCode type;
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/**
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* The helper that could read and write fields of the boxed value.
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*/
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transient BoxedValueHelper helper;
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/**
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* If true, the helper not available.
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*/
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transient boolean helper_NA;
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/**
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* Create a new instance for the given value and given type.
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*/
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public gnuValueHolder(Serializable value, TypeCode a_type)
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{
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super(value);
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type = a_type;
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}
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/**
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* Get the true type, as it was passed in the constructor.
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*/
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public TypeCode _type()
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{
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return type;
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}
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/**
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* Write content to the output stream. Tries to locate the
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* corresponding helper class.
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*/
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public void _write(OutputStream output)
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{
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findHelper();
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if (helper == null)
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super._write(output);
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else
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Vio.write(output, value, helper);
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}
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/**
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* Read, trying to locate helper, if possible.
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*/
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public void _read(InputStream input)
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{
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findHelper();
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if (helper == null)
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super._read(input);
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else
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value = Vio.read(input, helper);
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}
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/**
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* Set the read and write methods.
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*/
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void findHelper()
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{
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if (helper != null || helper_NA)
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return;
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try
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{
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Class helperClass =
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ObjectCreator.forName(ObjectCreator.toHelperName(type.id()));
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helper = (BoxedValueHelper) helperClass.newInstance();
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}
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catch (Exception ex)
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{
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helper_NA = true;
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}
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}
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} |