A wrapper type for double proxies. This type wraps the Java double type in a proxy type that uses the JNI jdouble type to repesent the Java type. Conversion operators allow convenient usage while the get/set methods take an optional xmog_localenv argument for better performance (by saving at least a threadlocal memory access). More...

#include <xmog_java_field.h>

Inheritance diagram for xmog_double:

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Collaboration diagram for xmog_double:

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Public Member Functions
	xmog_double (xmog_java_array *_ref, jint _index)
	Creates an instance that acts as a proxy for an element of a `double` array. More...

	xmog_double (xmog_java_ref _clazz_ref_array, xmog_java_dynamic _dynamic, xmog_flags _flags=0)
	Creates an instance that acts as a proxy for an indirect element of `double` type. More...

	operator jdouble () const
	A conversion operator to the `jdouble` type. More...

jdouble	operator* () const
	The dereference operator converts to the `jdouble` type. More...

xmog_double &	operator= (jdouble)
	An assignment operator from the `double` type. More...

xmog_double &	operator+= (jdouble)
	The additive assignment operator from the `jdouble` type. More...

xmog_double &	operator-= (jdouble)
	The subtractive assignment operator from the `jdouble` type. More...

xmog_double &	operator*= (jdouble)
	The multiplicative assignment operator from the `jdouble` type. More...

xmog_double &	operator/= (jdouble)
	The divisive assignment operator from the `jdouble` type. More...

jdouble	get (xmog_localenv *env=NULL, bool readThrough=false) const
	Returns the value of a `double` proxy instance. More...

void	set (jdouble d, xmog_localenv *env=NULL, bool writeThrough=false)
	Sets the value of a `double` proxy. More...

Public Member Functions inherited from xmog_base
	xmog_base ()
	The default contructor. More...

	xmog_base (xmog_java_array *_ref, jint _index)
	The constructor for Java array elements. More...

	xmog_base (xmog_java_ref _ref, xmog_java_dynamic _dynamic, xmog_flags _flags)
	The constructor for indirect and user-defined types. More...

	xmog_base (xmog_java_class _clazz, xmog_java_dynamic _dynamic, xmog_flags _flags)
	The constructor for indirect and user-defined types. More...

XMOG_EXPLICIT	xmog_base (xmog_base *_delegate, bool _owns_delegate=true)
	The constructor for delegating objects. More...

	xmog_base (jobject _local, xmog_flags _flags)
	The constructor for direct types. More...

virtual	~xmog_base ()
	The virtual destructor.

virtual void	copy_jobject_ (xmog_base _rhs, xmog_localenv env=NULL)
	Sets this instance's object reference to a duplicate of the given object's reference. More...

virtual jobject	get_owning_jobject_ (xmog_localenv *env=NULL)
	Returns this instance's owner. More...

virtual jobject	get_jobject_ (xmog_localenv *env=NULL) const
	Returns this instance's object reference. More...

virtual jobject	get_released_local_jobject_ (xmog_localenv *env=NULL) const
	Returns this instance's object reference as a local reference and removes it from this instance's ownership. More...

virtual bool	is_null_ (xmog_localenv *env=NULL) const
	Tests the instance for `null`.

virtual bool	is_same_ (const xmog_base &_rhs, xmog_localenv *env=NULL) const
	Tests whether this instance references the same instance as the other instance.

virtual jobject	duplicate_jobject_ (xmog_localenv *env=NULL) const
	Returns a duplicate of this instance's object reference. More...

virtual void	set_jobject_ (xmog_base _rhs, xmog_localenv env=NULL)
	Sets this instance's object reference to the given object's reference. More...

virtual void	transfer_jobject_ (xmog_base _rhs, xmog_localenv env=NULL)
	Sets this instance's object reference to the given object's reference and removes ownership from the other object. More...

virtual xmog_base *	xmog_to_ (xmog_flags flags, xmog_localenv *env=NULL)
	Converts a reference from one reference type to another. More...

virtual xmog_base *	xmog_fill_with_standalone_for_ (xmog_base _rhs, xmog_localenv env=NULL)
	Populates the object with a stand-alone reference based on another object. More...

virtual xmog_java_class *	xmog_get_java_peer (xmog_localenv *env=NULL)
	Returns `NULL` if the type does not have a Java peer type, a pointer to the type's xmog_java_class otherwise. More...

virtual int	xmog_create_java_peer (xmog_java_class clazz, xmog_localenv env=NULL, xmog_flags flags=xmog_base::GLOBAL)
	Creates a Java peer instance for this type. More...

virtual int	xmog_to_java_peer (xmog_localenv *env=NULL)
	Sets the native instance's state into the Java peer instance. More...

virtual void	xmog_lazy_write (xmog_localenv *env=NULL)
	Performs a lazy write operation on the instance. More...

virtual void	xmog_invalidate (xmog_localenv *env=NULL)
	Invalidates any cached values in the instance. More...

void	release_standalone (xmog_localenv *env=NULL)
	Releases the internally maintained object if the instance is a stand-alone (direct) instance and not an indirect instance. More...

void	release_delegate ()
	Releases the internally maintained delegate.

Additional Inherited Members
Public Types inherited from xmog_base
enum	flags { STAND_ALONE = 1, ARRAY_ELEMENT = 2, DYNAMIC = 4, DELEGATE = 8, LOCAL = 16, WEAK_GLOBAL = 32, GLOBAL = 64, REMOTE = 128, CACHING = 256, CACHE_INVALID = 512, CACHE_DIRTY = 1024, CACHE_LAZY_WRITE = 2048, OWNS_DELEGATE = 4096, STRING_DIRTY = 8192, STRING_PTR = 16384, STRING_WPTR = 32768, INDIRECT = 65536, NONVIRT = 131072, SUPPRESS_LOGGING = 262144, CATEGORY = 15, TYPE = 240, CACHE = 3840 }
	The possible flag values. More...

Public Attributes inherited from xmog_base
XMOG_JOBJECT_HOLDER	owner_
	The owner or identity of the object. More...

union {
xmog_java_dynamic * dynamic_
	A pointer to an object that can access indirectly specified information.

jint index_
	The index of an array element.

};
	Data or object that provides assistance in accessing indirectly specified elements. More...

xmog_flags	flags_
	The flags governing the type and other housekeeping information.

Detailed Description

A wrapper type for double proxies. This type wraps the Java double type in a proxy type that uses the JNI jdouble type to repesent the Java type. Conversion operators allow convenient usage while the get/set methods take an optional xmog_localenv argument for better performance (by saving at least a threadlocal memory access).

Constructor & Destructor Documentation

◆ xmog_double() [1/2]

xmog_double::xmog_double	(	xmog_java_array *	_ref,
		jint	_index
	)

Creates an instance that acts as a proxy for an element of a double array.

Parameters

_ref	a pointer to an array proxy element.
_index	the index of the element.

◆ xmog_double() [2/2]

xmog_double::xmog_double	(	xmog_java_ref *	_clazz_ref_array,
		xmog_java_dynamic *	_dynamic,
		xmog_flags	_flags = `0`
	)

Creates an instance that acts as a proxy for an indirect element of double type.

Parameters

_clazz_ref_array	a pointer to the owner of the primitive value.
_dynamic	the algorithm to access the value.
_flags	additional processing arguments.

Member Function Documentation

◆ get()

jdouble xmog_double::get	(	xmog_localenv *	env = `NULL`,
		bool	readThrough = `false`
	)		const

Returns the value of a double proxy instance.

This method takes two optional arguments that can be used to improve overall performance or force a read from the Java side even if a cached value is available.

Parameters

env	a local environment pointer. May be `NULL`.
readThrough	`true` if the value should be read from the Java side unconditionally, `false` if a cached value should be used if available. This flag is ignored if the instance does not use caching or if it does not yet have a cached value.

◆ operator jdouble()

xmog_double::operator jdouble ( ) const

A conversion operator to the jdouble type.

This operator allows the use of proxy instances of this type in any place where the compiler expects a primitive jdouble (double) rhs-value. You can achieve better performance by using the get(xmog_localenv*,bool) method with the proper arguments.

◆ operator*()

jdouble xmog_double::operator* ( ) const

The dereference operator converts to the jdouble type.

This operator is declared to support array iterators.

◆ operator*=()

xmog_double& xmog_double::operator*= ( jdouble )

The multiplicative assignment operator from the jdouble type.

This operator allows the use of proxy instances of this type in any place where the compiler expects a primitive jdouble lhs-value. You can achieve better performance by using the set(jbyte,xmog_localenv*,bool) method with the proper arguments.

◆ operator+=()

xmog_double& xmog_double::operator+= ( jdouble )

The additive assignment operator from the jdouble type.

This operator allows the use of proxy instances of this type in any place where the compiler expects a primitive jdouble lhs-value. You can achieve better performance by using the set(jbyte,xmog_localenv*,bool) method with the proper arguments.

◆ operator-=()

xmog_double& xmog_double::operator-= ( jdouble )

The subtractive assignment operator from the jdouble type.

This operator allows the use of proxy instances of this type in any place where the compiler expects a primitive jdouble lhs-value. You can achieve better performance by using the set(jbyte,xmog_localenv*,bool) method with the proper arguments.

◆ operator/=()

xmog_double& xmog_double::operator/= ( jdouble )

The divisive assignment operator from the jdouble type.

This operator allows the use of proxy instances of this type in any place where the compiler expects a primitive jdouble lhs-value. You can achieve better performance by using the set(jbyte,xmog_localenv*,bool) method with the proper arguments.

◆ operator=()

xmog_double& xmog_double::operator= ( jdouble )

An assignment operator from the double type.

This operator allows the use of proxy instances of this type in any place where the compiler expects a primitive double lhs-value. You can achieve better performance by using the set(jdouble,xmog_localenv*,bool) method with the proper arguments.

◆ set()

void xmog_double::set	(	jdouble	d,
		xmog_localenv *	env = `NULL`,
		bool	writeThrough = `false`
	)

Sets the value of a double proxy.

This method takes two optional arguments that can be used to improve overall performance or force a write to the Java side even if the CACHE_LAZY_WRITE policy is in effect for this instance.

Parameters

d	the new value.
env	a local environment pointer. May be `NULL`.
writeThrough	`true` if the value should be written to the Java side unconditionally, `false` if only the cached value should be updated. This flag is ignored if the instance does not use caching.

The documentation for this class was generated from the following file:

xmog_java_field.h

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ xmog_double() [1/2]

◆ xmog_double() [2/2]

Member Function Documentation

◆ get()

◆ operator jdouble()

◆ operator*()

◆ operator*=()

◆ operator+=()

◆ operator-=()

◆ operator/=()

◆ operator=()

◆ set()