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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 .
*/
#pragma once
#include <java/LocalRef.hxx>
#include <java/lang/Object.hxx>
namespace connectivity::jdbc
{
/** helper class to hold a local ref to a JNI object
*/
template< typename T >
class GlobalRef
{
public:
GlobalRef()
:m_object( nullptr )
{
}
GlobalRef( const GlobalRef& _source )
:m_object( nullptr )
{
*this = _source;
}
GlobalRef& operator=( const GlobalRef& _source )
{
if ( &_source == this )
return *this;
SDBThreadAttach t;
set( t.env(), _source.get() );
return *this;
}
~GlobalRef() COVERITY_NOEXCEPT_FALSE
{
reset();
}
void reset()
{
if ( m_object != nullptr )
{
SDBThreadAttach t;
t.env().DeleteGlobalRef( m_object );
m_object = nullptr;
}
}
void set( JNIEnv& _environment, T _object )
{
if ( m_object != nullptr )
_environment.DeleteGlobalRef( m_object );
m_object = _object;
if ( m_object )
m_object = static_cast< T >( _environment.NewGlobalRef( m_object ) );
}
void set( LocalRef< T >& _object )
{
set( _object.env(), _object.release() );
}
T get() const
{
return m_object;
}
bool is() const
{
return m_object != nullptr;
}
private:
T m_object;
};
} // namespace connectivity::jdbc
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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