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Diffstat (limited to 'connectivity/source/inc/java/GlobalRef.hxx')
-rw-r--r-- | connectivity/source/inc/java/GlobalRef.hxx | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/connectivity/source/inc/java/GlobalRef.hxx b/connectivity/source/inc/java/GlobalRef.hxx new file mode 100644 index 000000000000..98511037eeaa --- /dev/null +++ b/connectivity/source/inc/java/GlobalRef.hxx @@ -0,0 +1,122 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org 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 version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifndef CONNECTIVITY_GLOBALREF_HXX +#define CONNECTIVITY_GLOBALREF_HXX + +#include "java/LocalRef.hxx" +#include "java/lang/Object.hxx" + +/** === begin UNO includes === **/ +/** === end UNO includes === **/ + +#include <jvmaccess/virtualmachine.hxx> + +//........................................................................ +namespace connectivity { namespace jdbc +{ +//........................................................................ + + //==================================================================== + //= GlobalRef + //==================================================================== + /** helper class to hold a local ref to a JNI object + */ + template< typename T > + class GlobalRef + { + public: + GlobalRef() + :m_object( NULL ) + { + } + + GlobalRef( const GlobalRef& _source ) + :m_object( NULL ) + { + *this = _source; + } + + GlobalRef& operator=( const GlobalRef& _source ) + { + if ( &_source == this ) + return *this; + + SDBThreadAttach t; + set( t.env(), _source.get() ); + return *this; + } + + ~GlobalRef() + { + reset(); + } + + void reset() + { + if ( m_object != NULL ) + { + SDBThreadAttach t; + t.env().DeleteGlobalRef( m_object ); + m_object = NULL; + } + } + + void set( JNIEnv& _environment, T _object ) + { + if ( m_object != NULL ) + _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 != NULL; + } + + private: + T m_object; + }; + + +//........................................................................ +} } // namespace connectivity::jdbc +//........................................................................ + +#endif // CONNECTIVITY_GLOBALREF_HXX |