Package com.sun.jna.platform.win32.COM.util

Class Convert

java.lang.Object

com.sun.jna.platform.win32.COM.util.Convert

class Convert
extends Object

This class is considered internal to the package.

Constructor Summary

Constructors

Constructor	Description
Convert()

Method Summary

Modifier and Type	Method	Description
static void	free(Variant.VARIANT variant, Class<?> javaType)	Free the contents of the supplied VARIANT.
static void	free(Variant.VARIANT variant, Object value)	Free the contents of the supplied VARIANT.
static <T extends IComEnum> T	toComEnum(Class<T> enumType, Object value)
static Object	toJavaObject(Variant.VARIANT value, Class<?> targetClass, ObjectFactory factory, boolean addReference, boolean freeValue)
static Variant.VARIANT	toVariant(Object value)	Convert a java value into a VARIANT suitable for passing in a COM invocation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Convert

Convert()

Method Details

toVariant

public static Variant.VARIANT toVariant(Object value)

Convert a java value into a VARIANT suitable for passing in a COM invocation.

Implementation notes

• VARIANTs are not rewrapped, but passed through unmodified
• A string is wrapped into a BSTR, that is wrapped into the VARIANT. The string is allocated as native memory by the VARIANT constructor. The BSTR needs to be freed by OleAuto.SysFreeString(com.sun.jna.platform.win32.WTypes.BSTR).

Parameters:

value - to be wrapped

Returns:

wrapped VARIANT

toJavaObject

public static Object toJavaObject(Variant.VARIANT value,
 Class<?> targetClass,
 ObjectFactory factory,
 boolean addReference,
 boolean freeValue)

toComEnum

public static <T extends IComEnum> T toComEnum(Class<T> enumType,
 Object value)

free

public static void free(Variant.VARIANT variant,
 Class<?> javaType)

Free the contents of the supplied VARIANT.

This method is a companion to toVariant(java.lang.Object). Primary usage is to free BSTRs contained in VARIANTs.

Parameters:

variant - to be cleared

javaType - type before/after conversion

free

public static void free(Variant.VARIANT variant,
 Object value)

Free the contents of the supplied VARIANT.

This method is a companion to toVariant(java.lang.Object). Primary usage is to free BSTRs contained in VARIANTs.

Parameters:

variant - to be cleared

value - value before/after conversion