114 lines
2.8 KiB
C++
114 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_CONNECTIVITY_SOURCE_INC_JAVA_GLOBALREF_HXX
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#define INCLUDED_CONNECTIVITY_SOURCE_INC_JAVA_GLOBALREF_HXX
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#include "java/LocalRef.hxx"
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#include "java/lang/Object.hxx"
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#include <jvmaccess/virtualmachine.hxx>
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namespace connectivity { namespace jdbc
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{
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//= GlobalRef
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/** helper class to hold a local ref to a JNI object
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*/
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template< typename T >
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class GlobalRef
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{
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public:
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GlobalRef()
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:m_object( NULL )
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{
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}
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GlobalRef( const GlobalRef& _source )
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:m_object( NULL )
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{
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*this = _source;
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}
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GlobalRef& operator=( const GlobalRef& _source )
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{
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if ( &_source == this )
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return *this;
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SDBThreadAttach t;
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set( t.env(), _source.get() );
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return *this;
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}
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~GlobalRef()
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{
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reset();
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}
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void reset()
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{
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if ( m_object != NULL )
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{
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SDBThreadAttach t;
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t.env().DeleteGlobalRef( m_object );
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m_object = NULL;
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}
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}
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void set( JNIEnv& _environment, T _object )
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{
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if ( m_object != NULL )
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_environment.DeleteGlobalRef( m_object );
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m_object = _object;
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if ( m_object )
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m_object = static_cast< T >( _environment.NewGlobalRef( m_object ) );
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}
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void set( LocalRef< T >& _object )
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{
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set( _object.env(), _object.release() );
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}
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T get() const
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{
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return m_object;
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}
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bool is() const
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{
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return m_object != NULL;
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}
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private:
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T m_object;
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};
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} } // namespace connectivity::jdbc
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#endif // INCLUDED_CONNECTIVITY_SOURCE_INC_JAVA_GLOBALREF_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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