one, intercept surround notice (around advice):The most basic notification type in Spring.net is the Intercept surround notification (interception around advice), which is the method interceptor. The Intercept surround notification inherits the Imethodinterceptor interface. Note the invocation of the Imethodinvocation.proceed () method. This method invokes the
, a pointcut matches multiple connection points, and the pointcut is described by the Org.springframework.aop.Pointcut interface, which uses classes and methods as query criteria for connection points.
Notice: pre-notification (before advice): executed before the pointcut. Post notification (after returning advice): executes the notification after the Pointcut execution is complete. Executes regardless of whether an exception is thrown. The results returned by the method cannot be accesse
Multi-channel Home theater mode
What is a channel
Channel English full name: Sound Channel, refers to the sound in the recording or playback in different spatial location to collect or playback of the independent audio signal, so the number of channels that sound recording when the number of audio or playback when the corresponding number of speakers. The number of channels supported by the sound card is one of the important indicators of the sound card grade. The channel can be divided into
PointCut () {///define a pointcut following the notification directly into the Pointcut method PointCut can personserverimpl all the methods below}//Surround notification (connected to the tangent The in point begins execution, the next step enters the front notification, and the next step is to perform the action method) @Around (value= "PointCut ()") Public Object dobasicprofiling (Proceedingjoinpoint PJ
p) throws throwable{System.out.prin
entry point refers to which joinpoint we want to intercept the definition.3.Advice (Notification/enhancement): The so-called notification refers to the interception to Joinpoint after the thing to do is to inform. Notification is divided into pre-notification, post-notification, exception notification, final notification, surround notification (section to complete the function)4.Introduction (Introduction): Introduction is a special kind of notificat
voidMain (string[] args)throwsException {ApplicationContext context=NewClasspathxmlapplicationcontext ("Applicationcontext.xml"); Exceptiontest Bean= Context.getbean ("Test", exceptiontest.class); Bean.add (); } Public voidAdd ()throwsException {Throw NewException ("Error"); }}
Final Run Result:
The configuration method for the spring configuration file is the same as the predecessor enhancement and the post-strong configuration method, which is no longer
quantization uses unequal quantization intervals
The encoding process is to encode the quantified signal into a binary code group for output.
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Main differences:
Because they have different quantization intervals, the number of digits of the last binary encoding is different.
Other differences:
In PCM, corresponding technologies are sometimes used to reduce the data rate of digital signal sources, facilitating storage and data tran
Recently my wife gave me a death order, let me the computer's "broken speakers" to replace, she really can not endure to listen to music without surround sound, watching movies without overweight bass, play no game stereo sound, singing KTV simply do not sound ... Vulgar speech: "Head can be broken, blood flow, wife orders can not be lost." "Yes, this time must be excellent to complete the task of wife confessed!" Can change the speaker to spend money
of calls as the Polycom voice conferencing system in today's conference room. "At present, Internet TV and tablet computers have begun to have high-definition audio needs," said Duncan macadie ."
As a result, Apple TV, which is currently a hot topic in the industry, is likely to use high-frequency audio technology to demonstrate its differentiated performance. After all, there are currently not many killer jobs have.
The definition of HD Audio here includes the following four aspects: Firs
Audio is a very important element in information transmission, and even a good play without sound is also useless. Therefore, audio technology has been paid attention to during the development of TV. However, compared with the image progress, audio technology development lags behind, so the audio industry workers should work hard.
Skyworth A12 audio Engine Technology
Skyworth has A12 audio engine technology on LCD TV audio, and challenged Hisense, which is dominant in the Chinese mark
springaop LearningAuthor:luojie
1. Basic Concepts in AOP
AOPthe generic term, notSpring Javaunique. I'm sorry .AOPthe terminology is not particularly intuitive. But if you letSpring Javato define your own terminology may be more confusing. Aspect (Aspect): modularity of concerns that are distributed horizontally across multiple objects. In enterprise applications, transaction management is a typical crosscutting concern. The Springjava is implemented as an advisor or Interceptor
If more than one notification is executed at the same connection point, how is the order of execution determined?There are two cases in which the order of execution in the same slice is notified, and the order in which the notifications are executed in different slices.1. Order of notification execution in the same slice1) Pre-notification/Surround Notification proceed method before section2) method of being notified3) post notification/
method throws an exception exits.
final notification (after (finally) advice): A notification that is executed when a connection point exits (whether it is a normal return or an unexpected exit).
Surround Notification (Around Advice): A notification that surrounds a connection point, such as a method call. This is the most powerful type of notification. Surround notifications can accomplish custom
* number denotes all types. 3. Package Name: Indicates the package name that needs to be intercepted, and the following two periods represent all the child packages of the current package and the current package, Com.sample.service.impl the package, and the descendants of all classes. 4, the second * Number: denotes the class name, the * number denotes all classes. 5, * (..): The last asterisk denotes the method name, the * number denotes all methods, the following parentheses indicate the para
);}/*** Java.lang.object[]getargs (): Gets the parameter list of the connection point method Runtime* Signature getsignature (): Gets the connection point method before the object* Java.lang.ObjectgetTarget (): Gets the target object where the connection point resides* Java.lang.ObjectgetThis (): Gets the proxy object itself*/Surround enhancement@Around (value= "Execution (* Aspectj_dao. dosomthing.* ()) ")public void Around (Proceedingjoinpoint pjp)
sound, which can be achieved by pre-selecting the recording sound and then performing specific decoding. Real-time positioning is interaction. The sound is not pre-recorded, but determined based on your control. Real-time interactive sound requirements for input devices are stronger than those for sound recording devices (for example, movies.1. Extended stereo (Extended stereo)It uses the sound delay technology for additional processing of the traditional stereo sound, widening the location of
Dolby is a British R. m. dr. Dolby's Chinese interpreter, who has established the Dolby laboratory in the United States, has successively invented many technologies such as the Dolby noise reduction system and the Dolby surround sound system, which have a huge impact on movie and home audio. The commonly used Dolby technologies in the family mainly include Dolby noise reduction systems and Dolby surround so
In d3d10/11, there is the d3d10_query/d3d11_query interface. Through the query interface, we can query Some GPU statuses, such as timestamp) [This is often used for performance analysis], or to block query information. The DirectX SDK example shows how to use the occlusion query in d3d10/11. Source file directory:SDK Root\ Samples \ c ++ \ direct3d10 \ drawpredicated
First, let's look at what objects are included in the scenario: 6 telescopes (the telescope is a high-mode object with a large num
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