SelfDetachingJNIEnv Class Reference

Smart wrapper around JNIEnv which retains information of how the environment was loaded. More...

Public Member Functions
	SelfDetachingJNIEnv (SelfDetachingJNIEnv &&value)
	Move-constructs a SelfDetachingJNIEnv instance, making it use the same JNIEnv that value was using. More...
	SelfDetachingJNIEnv (SelfDetachingJNIEnv &value)=delete
	Deleted copy constructor. More...
	SelfDetachingJNIEnv (const SelfDetachingJNIEnv &value)=delete
	Deleted copy constructor. More...
JNIEnv *	getJNIEnv () const
	Returns underlying JNIEnv pointer. More...
JNIEnv &	operator* ()
	Returns the dereferenced JNIEnv pointer. More...
const JNIEnv &	operator* () const
	Returns a const reference to the JNIEnv pointer. More...
JNIEnv *	operator-> ()
	Returns the underlying JNIEnv pointer to provide access to its members. More...
const JNIEnv *	operator-> () const
	Returns ther underlying JNIEnv pointer to provide access to its const members. More...
SelfDetachingJNIEnv &	operator= (SelfDetachingJNIEnv &&value)
	Move assigns value to this SelfDetachingJNIEnv instance. More...
SelfDetachingJNIEnv &	operator= (SelfDetachingJNIEnv &value)=delete
	Deleted copy and assign operator. More...
SelfDetachingJNIEnv &	operator= (const SelfDetachingJNIEnv &value)=delete
	Deleted copy and assign operator. More...
	operator bool () const
	Returns true if the wrapped JNIEnv is not null. More...

Static Public Member Functions
static SelfDetachingJNIEnv	fromJVM (JavaVM *vm)
	Returns a SelfDetachingJNIEnv wrapper around the current JNIEnv. More...

Detailed Description

Smart wrapper around JNIEnv which retains information of how the environment was loaded.

If the current thread has attached to a JavaVM, then this wrapper will detach the current thread from the same JavaVM when the wrapper is deleted.

Constructor & Destructor Documentation

SelfDetachingJNIEnv::SelfDetachingJNIEnv

(

SelfDetachingJNIEnv &&

value

)

Move-constructs a SelfDetachingJNIEnv instance, making it use the same JNIEnv that value was using.

Parameters

value

SelfDetachingJNIEnv instance to move into this

SelfDetachingJNIEnv::SelfDetachingJNIEnv ( SelfDetachingJNIEnv &  value )

delete

Deleted copy constructor.

Parameters

value

SelfDetachingJNIEnv to copy

SelfDetachingJNIEnv::SelfDetachingJNIEnv ( const SelfDetachingJNIEnv &  value )

delete

Deleted copy constructor.

Parameters

value

SelfDetachingJNIEnv to copy

Member Function Documentation

static SelfDetachingJNIEnv SelfDetachingJNIEnv::fromJVM ( JavaVM *  vm )

static

Returns a SelfDetachingJNIEnv wrapper around the current JNIEnv.

This method first tries to load the current JVM environment. If that fails, this method will try attaching to the current JVM thread to load the environment if the vm is non-null.

Note

This method follows a similar model documented here.

JNIEnv* SelfDetachingJNIEnv::getJNIEnv

(

)

const

Returns underlying JNIEnv pointer.

SelfDetachingJNIEnv::operator bool ( ) const

inline

Returns true if the wrapped JNIEnv is not null.

JNIEnv& SelfDetachingJNIEnv::operator*

(

)

Returns the dereferenced JNIEnv pointer.

Note

If the wrapped pointer is null, behavior is undefined.

const JNIEnv& SelfDetachingJNIEnv::operator*

(

)

const

Returns a const reference to the JNIEnv pointer.

Note

If the wrapped pointer is null, behavior is undefined.

JNIEnv* SelfDetachingJNIEnv::operator->

(

)

Returns the underlying JNIEnv pointer to provide access to its members.

const JNIEnv* SelfDetachingJNIEnv::operator->

(

)

const

Returns ther underlying JNIEnv pointer to provide access to its const members.

SelfDetachingJNIEnv& SelfDetachingJNIEnv::operator=

(

SelfDetachingJNIEnv &&

value

)

Move assigns value to this SelfDetachingJNIEnv instance.

Parameters

value

SelfDetachingJNIEnv instance to move into this

Returns

Reference to this

SelfDetachingJNIEnv& SelfDetachingJNIEnv::operator= ( SelfDetachingJNIEnv &  value )

delete

Deleted copy and assign operator.

Parameters

value

SelfDetachingJNIEnv to copy and assign

Returns

Reference to this

SelfDetachingJNIEnv& SelfDetachingJNIEnv::operator= ( const SelfDetachingJNIEnv &  value )

delete

Deleted copy and assign operator.

Parameters

value

SelfDetachingJNIEnv to copy and assign

Returns

Reference to this