include/jvmaccess/unovirtualmachine.hxx

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  19
  20 #ifndef INCLUDED_JVMACCESS_UNOVIRTUALMACHINE_HXX
  21 #define INCLUDED_JVMACCESS_UNOVIRTUALMACHINE_HXX
  22
  23 #include <jvmaccess/jvmaccessdllapi.h>
  24 #include <sal/config.h>
  25 #include <salhelper/simplereferenceobject.hxx>
  26 #include <rtl/ref.hxx>
  27
  28 namespace jvmaccess {
  29
  30 class VirtualMachine;
  31
  32 /** An encapsulating wrapper around a Java virtual machine and an appropriate
  33     UNO class loader.
  34  */
  35 class JVMACCESS_DLLPUBLIC UnoVirtualMachine: public salhelper::SimpleReferenceObject {
  36 public:
  37     /** An exception indicating failure to create a UnoVirtualMachine.
  38      */
  39     class JVMACCESS_DLLPUBLIC CreationException final
  40     {
  41     public:
  42         CreationException();
  43
  44         CreationException(CreationException const &);
  45
  46         ~CreationException();
  47
  48         CreationException & operator =(CreationException const &);
  49     };
  50
  51     /** Create a wrapper around a Java virtual machine and an appropriate UNO
  52         class loader.
  53
  54         @param virtualMachine
  55         A Java virtual machine wrapper.  Must not be null.
  56
  57         @param classLoader
  58         A local or global JNI reference, relative to the given virtualMachine,
  59         to an appropriate UNO class loader instance.  Must not be null.  This
  60         parameter should be of type jobject, not void *, but the exact
  61         definition of jobject is different for different JDK versions, so that
  62         the mangled C++ name of the constructor would depend on the JDK version
  63         used at compile time.
  64
  65         @exception CreationException
  66         Thrown in case creation fails (due to a JNI problem).
  67      */
  68     UnoVirtualMachine(
  69         rtl::Reference< jvmaccess::VirtualMachine > const & virtualMachine,
  70         void * classLoader);
  71
  72     /** Get the Java virtual machine wrapper.
  73
  74         @return
  75         The Java virtual machine wrapper.  Will never be null.
  76      */
  77     const rtl::Reference< jvmaccess::VirtualMachine >& getVirtualMachine() const;
  78
  79     /** Get the UNO class loader.
  80
  81         @return
  82         A global JNI reference to the UNO class loader.  (The JNI reference must
  83         not be deleted by client code.)  Will never be null.  This should be of
  84         type jobject, not void *, but the exact definition of jobject is
  85         different for different JDK versions, so that the mangled C++ name of
  86         the function would depend on the JDK version used at compile time.
  87      */
  88     void * getClassLoader() const { return m_classLoader;}
  89
  90 private:
  91     UnoVirtualMachine(UnoVirtualMachine const &) = delete;
  92     UnoVirtualMachine& operator =(UnoVirtualMachine const &) = delete;
  93
  94     virtual ~UnoVirtualMachine() override;
  95
  96     rtl::Reference< jvmaccess::VirtualMachine > m_virtualMachine;
  97     void * m_classLoader;
  98 };
  99
 100 }
 101
 102 #endif
 103
 104 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */