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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef __com_sun_star_java_XJavaVM_idl__
#define __com_sun_star_java_XJavaVM_idl__
#include <com/sun/star/uno/XInterface.idl>
module com { module sun { module star { module java {
/** must be implemented by the user of the XJavaVM.
@deprecated
A UNO interface seems to be at the wrong abstraction level for this
functionality (also, the C++ classes <code>jvmaccess::VirtualMachine</code>
and <code>jvmaccess::UnoVirtualMachine</code> used by
<member scope="com::sun::star::java">XJavaVM::getJavaVM</member> are not
part of the public C++ UNO runtime API). This should probably be replaced
by an appropriate C/C++ API.
*/
published interface XJavaVM: com::sun::star::uno::XInterface
{
/** returns the address of the Java Virtual Machine.
<p>If the VM is not already instantiated, it will be now.</p>
<p>If the <code>processID</code> is a normal 16-byte ID, the returned
<atom>any</atom> contains a JNI <code>JavaVM</code> pointer as a
<atom>long</atom> or <atom>hyper</atom> integer (depending on the
platform). If the <code>processID</code> does not match the current
process, or if the VM cannot be instantiated for whatever reason, a
<void/> <atom>any</atom> is returned.</p>
<p>If the <code>processID</code> has an additional 17th byte of
value <code>0</code>, the returned <atom>any</atom> contains a
non–reference-counted pointer to a (reference-counted) instance of
the C++ <code>jvmaccess::VirtualMachine</code> class, always represented
as a <atom>hyper</atom> integer. The pointer is guaranteed to be valid
as long as the reference to this
<type scope="com::sun::star::java">XJavaVM</type> is valid (but the
pointer should be converted into a reference-counted reference as soon
as possible). Again, if the first 16 bytes of the
<code>processID</code> do not match the current process, or if the VM
cannot be instantiated for whatever reason, a <void/> <atom>any</atom>
is returned.</p>
<p>If the <code>processID</code> has an additional 17th byte of
value <code>1</code>, the returned <atom>any</atom> contains a
non–reference-counted pointer to a (reference-counted) instance of
the C++ <code>jvmaccess::UnoVirtualMachine</code> class, always
represented as a <atom>hyper</atom> integer. The pointer is guaranteed
to be valid as long as the reference to this
<type scope="com::sun::star::java">XJavaVM</type> is valid. Again, if
the first 16 bytes of the <code>processID</code> do not match the
current process, or if the VM cannot be instantiated for whatever
reason, a <void/> <atom>any</atom> is returned.</p>
<p>The first form (returning a JNI <code>JavaVM</code> pointer) is
mainly for backwards compatibility, new code should use the second form
(returning a pointer to a <code>jvmaccess::VirtualMachine</code>) if it
does not want to use the Java UNO environment, and it should use the
third form (returning a pointer to a
<code>jvmaccess::UnoVirtualMachine</code>) if it wants to use the Java
UNO environment. For example, one advantage of using
<code>jvmaccess::VirtualMachine</code> instead of the raw
<code>JavaVM</code> pointer is that whenever you attach a native thread
to the Java virtual machine, that thread's context
<code>ClassLoader</code> (see
<code>java.lang.Thread.getContextClassLoader</code>) will automatically
be set to a meaningful value.</p>
@param processID
The process ID of the caller's process, possibly extended by a 17th byte
of value <code>0</code> or <code>1</code>.
@return
On success, the <atom>any</atom> contains a pointer represented as
<atom>long</atom> or <atom>hyper</atom>, otherwise the <atom>any</atom>
is <void/>.
*/
any getJavaVM( [in] sequence<byte> processID );
/** returns <true/> if the VM is started successfully, otherwise <false/>.
*/
boolean isVMStarted();
/** Returns <true/> if the VM is enabled.
<p>It is only possible to get the VM, if this method return 0. </p>
*/
boolean isVMEnabled();
};
}; }; }; };
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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