a template method is called a top-level behavior, and its logic is called top-level logic. 1 /*2 requirement: Gets the time that a program runs. 3 principle: Get the program start and end time and subtract. 4 5 Acquisition Time: System.currenttimemillis ();6 7 This type of problem can be solved by completing the optimization of the current code. 8 9 this way, the template method
Now some of the CMS system design is very user-friendly, the implementation of the template and CMS architecture separation. By doing so, it is easy to design and develop the template alone, and it is easy to implement the style replacement of the site's front desk.
If you are a CSS has a certain understanding of the
2016-1-28 **/ Public Abstract classTwophasetrstemplate { Public voidExecute () {prepare (); Preaction (); Submit (); Afteraction (); } Public Abstract voidprepare (); Public Abstract voidsubmit (); Private voidpreaction () {System.out.println ("Transaction start, trading status is in progress, record transaction log"); } Private voidafteraction () {System.out.println ("The transaction was successful and the trading log status was updated to Success"); }}For specific tra
: Binary_search
Some algorithms sort the interval from small to large , called the " sorting algorithm "Example: Sort
There are other algorithms that use the concept of "big", "small"
when using STL, the default case, the following three statements are equivalent :1) x is smaller than y2) expression "x" is true3) y is larger than x
The concept of "equality" in 5.STL
Sometimes "x and Y equals" is equivalent to "x==y is true"Example: An algorithm that is performed on an u
of an algorithm. A the template method not only invokes primitive operations, it also invokes operations defined in AbstractClass or other objects. at -2. Concreteclass -Implements primitive operations to complete the steps associated with a particular subclass in the algorithm.Test class: 1 public class Test { 2 public static void main (string[] args) { 4 Temp Late temp = new Templateconcrete (); 5 Temp.update (); 6 7 } public
Reprinted please indicate the source: http://blog.csdn.net/guolin_blog/article/details/8742681
This is a copy version of Java Design Pattern dialysis, which is specially provided for Ruby lovers. If you are not familiar with Ruby syntax, please refer:
Java Design Pattern Analysis-Template Method)
Today, you have started programming as usual.
The project manager
Recently, we have seen the shadows of design patterns in many occasions. We have been investing in algorithms and data structures for a long time. It is very important to find the design patterns. Sometimes code maintenance, reuse, and scalability are better than pure algorithms. So I picked up Daniel's book "big talk Design Patterns" and referred to the blogs of
SEO appeared n years, then the site template from the table structure to the DIV+CSS transformation, so that the site front developers better maintain the original site template, and the form of separation of the structure and style by the industry's praise, More and more designers are beginning to discard the traditional form layout instead of using structure and style sharing to
class: one or more abstract methods defined by the parent class as required.
A small example is used to reflect the above structure:
/// Key points of the template method mode
The template method mode is a basic design mode and has a large number of applications in the object-oriented system. It uses the most concise mechanism (the polymorphism of virtual functi
("Hummerh1model3 horn called");} @Overridepublic void Engineboom () {//TODO auto-generated method StubSystem.out.println ("Hummerh1model3 engine Started");} @Overridepublic void Run () {//TODO auto-generated method Stubthis.start (); This.engineboom (); This.alarm (); System.out.println ("Hummerh1model3 ran Up");}} This is a basic template design pattern, but we can clearly see that there will be duplicate
template method determines their sequencing, but it allows the application and document subclasses to change these steps to meet their needs. 3. Applicability one-time implementation of the invariant part of the algorithm, the variable part to the subclass implementation of the common behavior of each subclass should be extracted and centralized into the parent class to avoid the extension of the code repeating subclass by the parent class control 4.
An HTTP request is a time-consuming operation that, if placed on the main thread, causes the UI thread to block, and Android does not allow the developer to place the network time-consuming operation on the main thread after API8. For an open thread to make an HTTP request, the data returned from the server requires the main thread to process and update the UI, The child thread cannot update the UI, so there is a connection between the child thread and the main thread. Android provides a handler
This tutorial introduces the Template method on the page of the celebration public beta activity page of Photoshop design fashion atmosphere to my friends at the foot of the house. The design results of this tutorial are very good and worth learning. we recommend that you come over, let's take a look at it. this tutorial introduces the
This afternoon, we mainly studied the templatemethod in the design mode (mode design pattern).In spring, various o/rm are encapsulated, such as the Hibernatetemplate package for hibernate, and JdbcTemplate encapsulation for JDBC. These packages all practice the Template Method design pattern.For Hibernatetemplate, spri
When we are going to complete a process or a series of steps that are consistent at a certain level of detail, but an individual step is not implemented at a detailed level, we usually consider using a template method pattern to handle it.Template method Pattern: Defines the skeleton of an algorithm in an operation, and delays some steps into subclasses. The template method allows subclasses to redefine som
The template method pattern defines the skeleton of an algorithm in one method, and some steps are deferred to subclasses. The template method allows subclasses to redefine some of the steps in the algorithm without changing the structure of the algorithm. A template is a method. This method defines the algorithm as a set of steps, in which any step can be abstr
I. Schema Definition
The template method mode defines the skeleton of an algorithm in a method, and delays some steps to the subclass. The template method allows subclass to redefine some steps in the algorithm without changing the algorithm structure.
Ii. embodied Design Principles
Hollywood principle: Do not call (CALL) us. We will call (CALL) You.This princip
1. Overview
Defines the skeleton of an algorithm in an operation, and defers the step to a subclass. Template methods enable subclasses to redefine some specific steps of an algorithm without altering the structure of an algorithm.
2. Role in the pattern
2.1 Abstract Class (AbstractClass): The template method is implemented, and the skeleton of the algorithm is defined.
2.2 Concrete Class (Concreteclass
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