/*************************************************************************
 *
 *  OpenOffice.org - a multi-platform office productivity suite
 *
 *  $RCSfile: XJavaVM.idl,v $
 *
 *  $Revision: 1.18 $
 *
 *  last change: $Author: rt $ $Date: 2005-09-09 15:40:11 $
 *
 *  The Contents of this file are made available subject to
 *  the terms of GNU Lesser General Public License Version 2.1.
 *
 *
 *    GNU Lesser General Public License Version 2.1
 *    =============================================
 *    Copyright 2005 by Sun Microsystems, Inc.
 *    901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License version 2.1, as published by the Free Software Foundation.
 *
 *    This library 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
 *    Lesser General Public License for more details.
 *
 *    You should have received a copy of the GNU Lesser General Public
 *    License along with this library; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *    MA  02111-1307  USA
 *
 ************************************************************************/
#ifndef __com_sun_star_java_XJavaVM_idl__
#define __com_sun_star_java_XJavaVM_idl__

#ifndef __com_sun_star_uno_XInterface_idl__
#include <com/sun/star/uno/XInterface.idl>
#endif

//=============================================================================

module com {  module sun {  module star {  module java {

//=============================================================================

// DocMerge from xml: interface com::sun::star::java::XJavaVM
/** 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
{
    //-------------------------------------------------------------------------

    // DocMerge from xml: method com::sun::star::java::XJavaVM::getJavaVM
    /** 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&nbsp;<code>0</code>, the returned <atom>any</atom> contains a
        non&ndash;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&nbsp;<code>1</code>, the returned <atom>any</atom> contains a
        non&ndash;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&nbsp;<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 );

    //-------------------------------------------------------------------------

    // DocMerge from xml: method com::sun::star::java::XJavaVM::isVMStarted
    /** returns <true/> if the VM is started successfully, otherwise <false/>.
     */
    boolean isVMStarted();

    //-------------------------------------------------------------------------

    // DocMerge from xml: method com::sun::star::java::XJavaVM::isVMEnabled
    /** 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
