Package org.freedesktop.gstreamer.gst

Class IdStr

java.lang.Object

org.javagi.base.ProxyInstance

org.freedesktop.gstreamer.gst.IdStr

All Implemented Interfaces:

Proxy

@Generated("io.github.jwharm.JavaGI")
public class IdStr
extends ProxyInstance

A GstIdStr is string type optimized for short strings and used for structure names, structure field names and in other places.

Strings up to 16 bytes (including NUL terminator) are stored inline, other strings are stored on the heap.

GstIdStr s = GST_ID_STR_INIT;

 gst_id_str_set (&s, "Hello, World!");
 g_print ("%s\\n", gst_id_str_as_str (&s));

 gst_id_str_clear (&s);
 

Since:

1.26

Constructor Summary

Constructors

Constructor	Description
IdStr()	Returns a newly heap allocated empty string.
IdStr(MemorySegment address)	Create a IdStr proxy instance for the provided memory address.

Method Summary

Modifier and Type	Method	Description
String	asStr()
void	clear()	Clears this IdStr and sets it to the empty string.
IdStr	copy()	Copies this IdStr into newly allocated heap memory.
void	copyInto(IdStr s)	Copies s into d.
void	free()	Frees s. This should only be called for heap-allocated GstIdStr.
long	getLen()	Returns the length of s, exluding the NUL-terminator.
static MemoryLayout	getMemoryLayout()	The memory layout of the native struct.
static @Nullable Type	getType()	Get the GType of the IdStr class
void	init()	Initializes a (usually stack-allocated) id string s. The newly-initialized id string will contain an empty string by default as value.
boolean	isEqual(IdStr s2)	Compares this IdStr and s2 for equality.
boolean	isEqualToStr(String s2)	Compares this IdStr and s2 for equality.
boolean	isEqualToStrWithLen(String s2, long len)	Compares this IdStr and s2 with length len for equality.
void	move(IdStr s)	Moves s into this IdStr and resets s.
MemorySegment	readPointer()	Read the value of the field pointer.
void	set(String value)	Sets this IdStr to the string value.
void	setStaticStr(String value)	Sets this IdStr to the string value. value needs to be valid for the remaining lifetime of the process, e.g.
void	setStaticStrWithLen(String value, long len)	Sets this IdStr to the string value of length len. value needs to be valid for the remaining lifetime of the process, e.g.
void	setWithLen(String value, long len)	Sets this IdStr to the string value of length len. value does not have to be NUL-terminated and len should not include the NUL-terminator.
void	writePointer(MemorySegment pointer)	Write a value in the field pointer.

Methods inherited from class org.javagi.base.ProxyInstance

equals, handle, hashCode

Methods inherited from class java.lang.Object

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

Constructor Details

IdStr

public IdStr(MemorySegment address)

Create a IdStr proxy instance for the provided memory address.

Parameters:

address - the memory address of the native object

IdStr

public IdStr()

Returns a newly heap allocated empty string.

Since:

1.26

Method Details

getType

public static @Nullable Type getType()

Get the GType of the IdStr class

Returns:

the GType

getMemoryLayout

public static MemoryLayout getMemoryLayout()

The memory layout of the native struct.

Returns:

the memory layout

readPointer

public MemorySegment readPointer()

Read the value of the field pointer.

Returns:

The value of the field pointer

writePointer

public void writePointer(MemorySegment pointer)

Write a value in the field pointer.

Parameters:

pointer - The new value for the field pointer

asStr

public String asStr()

clear

public void clear()

Clears this IdStr and sets it to the empty string.

Since:

1.26

copy

public IdStr copy()

Copies this IdStr into newly allocated heap memory.

Returns:

A heap-allocated copy of s.

Since:

1.26

copyInto

public void copyInto(IdStr s)

Copies s into d.

Parameters:

s - The source GstIdStr

Since:

1.26

free

public void free()

Frees s. This should only be called for heap-allocated GstIdStr.

Since:

1.26

getLen

public long getLen()

Returns the length of s, exluding the NUL-terminator. This is equivalent to calling strcmp() but potentially faster.

Since:

1.26

init

public void init()

Initializes a (usually stack-allocated) id string s. The newly-initialized id string will contain an empty string by default as value.

Since:

1.26

isEqual

public boolean isEqual(IdStr s2)

Compares this IdStr and s2 for equality.

Parameters:

s2 - A GstIdStr

Returns:

true if this IdStr and s2 are equal.

Since:

1.26

isEqualToStr

public boolean isEqualToStr(String s2)

Compares this IdStr and s2 for equality.

Parameters:

s2 - A string

Returns:

true if this IdStr and s2 are equal.

Since:

1.26

isEqualToStrWithLen

public boolean isEqualToStrWithLen(String s2,
 long len)

Compares this IdStr and s2 with length len for equality. s2 does not have to be NUL-terminated and len should not include the NUL-terminator.

This is generally faster than gst_id_str_is_equal_to_str() if the length is already known.

Parameters:

s2 - A string

len - Length of s2.

Returns:

true if this IdStr and s2 are equal.

Since:

1.26

move

public void move(IdStr s)

Moves s into this IdStr and resets s.

Parameters:

s - The source GstIdStr

Since:

1.26

set

public void set(String value)

Sets this IdStr to the string value.

Parameters:

value - A NUL-terminated string

Since:

1.26

setStaticStr

public void setStaticStr(String value)

Sets this IdStr to the string value. value needs to be valid for the remaining lifetime of the process, e.g. has to be a static string.

Parameters:

value - A NUL-terminated string

Since:

1.26

setStaticStrWithLen

public void setStaticStrWithLen(String value,
 long len)

Sets this IdStr to the string value of length len. value needs to be valid for the remaining lifetime of the process, e.g. has to be a static string.

value must be NUL-terminated and len should not include the NUL-terminator.

Parameters:

value - A string

len - Length of the string

Since:

1.26

setWithLen

public void setWithLen(String value,
 long len)

Sets this IdStr to the string value of length len. value does not have to be NUL-terminated and len should not include the NUL-terminator.

Parameters:

value - A string

len - Length of the string

Since:

1.26