The Java Native InterfaceProgrammer’s Guide and Specification phần 3 docx
The Java Native InterfaceProgrammer’s Guide and Specification phần 3 docx
... callback from
native code (a native /Java callback) compare with the cost of calling a native
method (a Java/ native call), and with the cost of calling a regular method (a Java/
Java call)?
The answer ... reference and the other for the result returned from the
method call. Next, it obtains the class reference from the object and looks up the
method ID. D...
The Java Native InterfaceProgrammer’s Guide and Specification phần 1 ppt
... Evolution of the JNI
The need for Java applications to interoperate with native code has been recog-
nized since the very early days of the Java platform. The first release of the Java
platform, Java ... Because of the
1.
As used herein, the phrases Java virtual machine” or Java VM” mean a virtual machine for the
Java platform. Similarly, the phrase Java API”...
The Java Native InterfaceProgrammer’s Guide and Specification phần 2 ppsx
... STRINGS, AND ARRAYS Mapping of Types 3. 1 .3
23
Figure 3. 1 The JNIEnv Interface Pointer
The second argument differs depending on whether the native method is a
static or an instance method. The second ... ([Ljava/lang/String;)V
private native nativeMethod ()V
The -s flag informs javap to output JNI descriptor strings rather than types as
they appear in the Java progra...
The Java Native InterfaceProgrammer’s Guide and Specification phần 4 ppt
... scheduled.
The thread models match if the native code uses the same thread model as the
Java virtual machine implementation. If the Java virtual machine implementation
uses native thread support, the native ... convention and to accept two
additional arguments (the
JNIEnv pointer and the “this” pointer).
2. The stub converts between Java programming language t...
The Java Native InterfaceProgrammer’s Guide and Specification phần 5 pdf
... Application and Native Code
A common question when designing a Java application supported by native code
is “What, and how much, should be in native code?” The boundaries between the
native code and the ... the library name and function name to locale-spe-
cific C strings, and then calls the Win32 API functions
LoadLibrary and
GetProcAddress to locate the C fu...
The Java Native InterfaceProgrammer’s Guide and Specification phần 6 pdf
... language.
12.1.1 Primitive Types
The following table describes the primitive types in the Java programming lan-
guage and the corresponding types in the JNI. Like their counterparts in the Java
programming language, ... characters, and so on, are copied between
the Java virtual machine and native code. Objects, on the other hand, are passed
jni.book Page 155 Thur...
The Java Native InterfaceProgrammer’s Guide and Specification phần 7 pps
... are to be passed to the
method immediately following the
methodID argument. The
Call<Type>Method function accepts these arguments and
passes them to the method that the programmer wishes ... implementations rely on the return value of the
JNI_OnLoad handler
to determine the argument passing convention of native method implementation
functions in a given native libr...
The Java Native InterfaceProgrammer’s Guide and Specification phần 9 doc
... for-
mat. The function begins the translation at offset
start and
places the result in the given buffer
buf. The str reference and
buf buffer must not be NULL.
Note that the
len argument denotes the ... triggers the execution of this function.
The
JNI_OnLoad function returns the JNI version number
required by the native library. If the native library does not
e...
The Java Native InterfaceProgrammer’s Guide and Specification phần 10 pdf
... 215
NoSuchFieldError, 226, 233
NoSuchMethodError, 47, 228, 236 , 2 73
O
object array, 33
Object.wait, notify, and notifyAll, 95
ObjectArrayTest example, 38
jni.book Page 30 0 Thursday, February 21, 2002 4 :36 PM
Simpo ... 58
Java_ prefix, 22
Java_ VMInitArgs, 251
javac compiler, 11, 14
javah tool, 9, 11, 14
javai.dll, 87
javai.lib, 87
javap tool, 44
JavaVM interface
create, 83
dest...
PL/SQL User’s Guide and Reference phần 3 pdf
... History’, 5),
Course(2 130 , The Renaissance’, 3) ,
Course(2 132 , The Reformation’, 3) ,
Course (31 05, ’History of Ancient Greece’, 4),
Course (33 21, ’Early Japan’, 4),
Course (36 01, ’Latin America ... VARCHAR2(25));
Using the BULK COLLECT Clause
Collections and Records 4 -37
Using the BULK COLLECT Clause
The keywords BULK COLLECT tell the SQL engine to bulk-bind outpu...