Package org.javagi.gobject

Class ValueUtil

java.lang.Object

org.javagi.gobject.ValueUtil

public class ValueUtil
extends Object

Utility functions to convert a Value to and from a Java Object.

Constructor Summary

Constructors

Constructor	Description
ValueUtil()

Method Summary

Modifier and Type	Method	Description
static @Nullable Value	copy(@Nullable Value src)	Allocate and initialize a new GValue, and copy src into it.
static boolean	objectToValue(@Nullable Object src, @Nullable Value dest)	Read the GType of the dest GValue and set the src object (or boxed primitive value) as its value using the corresponding setter in the Value proxy class.
static @Nullable Object	valueToObject(@Nullable Value src)	Read the GType from the GValue, call the corresponding getter (using the methods defined in the Value proxy class), and return the result.

Methods inherited from class java.lang.Object

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

Constructor Details

ValueUtil

public ValueUtil()

Method Details

valueToObject

@Nullable
public static @Nullable Object valueToObject(@Nullable
 @Nullable Value src)

Read the GType from the GValue, call the corresponding getter (using the methods defined in the Value proxy class), and return the result.

Parameters:

src - a GValue instance.

Returns:

a Java object (or boxed primitive value) that has been marshaled from the GValue, or null if src is null.

objectToValue

public static boolean objectToValue(@Nullable
 @Nullable Object src,
 @Nullable
 @Nullable Value dest)

Read the GType of the dest GValue and set the src object (or boxed primitive value) as its value using the corresponding setter in the Value proxy class.

Parameters:

src - the Java Object (or boxed primitive value) to put in the GValue. Should not be null

dest - the GValue to write to. Should not be null

Returns:

true if the value was set, and false otherwise.

copy

@Nullable
public static @Nullable Value copy(@Nullable
 @Nullable Value src)

Allocate and initialize a new GValue, and copy src into it.

Parameters:

src - the GValue to copy

Returns:

the newly created GValue, or null if src is null