fips 140 2 level 2

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Mybatis level 1 and level 2 cache, and mybatis Level 2 Cache

Mybatis level 1 and level 2 cache, and mybatis Level 2 CacheLevel 1 Cache First, perform a test to create a mapper configuration file and mapper interface. Here I use the simplest query for demonstration. public interface UserMapper { List Then write a unit test Public c

Hibernate & lt; Level 2 Cache & gt; and hibernate Level 2 Cache

Hibernate Secondary cache: Definition: 1. The second-level cache is called the process-level cache or sessionFactory-level cache. The second-level cache can be shared by all sessions. 2. the life cycle of the second-level cache i

Hibernate level 1 and level 2 cache (2)

Hibernate cache category:Session cache, level 1 cache; Sessionfactory caches are divided into built-in caches and external caches. the built-in cache stores data contained in some collection attributes of the sessionfactory object (ing element data and predefined SQL statements). For applications, it is read-only. the external cache stores copies of database data, which is similar to the primary cache. in addition to using memory as the storage medium

Hibernate Level 1 cache and level 2 cache, hibernate Level 1 Cache

Hibernate Level 1 cache and level 2 cache, hibernate Level 1 Cache The cache is between applications and physical data sources. It is used to reduce the frequency of applications accessing physical data sources and improve the running performance of applications. Data in the cache is the replication of data in the phys

Level 1 cache, level 2 cache, and lazy loading in Hibernate, and level 1 cache in hibernate

Level 1 cache, level 2 cache, and lazy loading (transfer) in Hibernate, and level 1 cache in hibernate1. Why cache? Hibernate uses cache to reduce the number of accesses to the database, thus improving the execution efficiency of hibernate. There are two types of cache in hibernate:

Idea and code for jquery to implement level-2/level-3/multi-level linkage menu

This article describes how to use jQuery's AJAX function and asp.net to achieve the three-level linkage effect between provinces and municipalities. Other second-level, third-level, or multi-level linkages can also be completed according to this method. The data table involved in this article is City, for convenient m

Jquey check box Level 3 Classification Association Level 1 Level 2 Classification (Reserved ),

Jquey check box Level 3 Classification Association Level 1 Level 2 Classification (Reserved ),   

Aspmaker website background production tool (2): Product Level 2

During website back-end construction, product level-2, level-3, news level-2, and level-3 are frequently involved. It is inconvenient to manually write the code, but the Aspmaker website background creation tool can easily solve t

Hibernate uses cache (level 1, level 2, and query) to improve system performance and hibernate system performance

Hibernate uses cache (level 1, level 2, and query) to improve system performance and hibernate system performanceIn hibernate, we usually use three types of caches: level-1 cache, level-2 cache, and query cache. Below we will anal

Use RUP to reach level 2 and level 3

(Rational) Summary The Software Engineering Association (SEI) Capability Maturity Model (CMM) provides a well-known software process maturity benchmark. CMM has become a popular tool in many fields to evaluate the maturity of an organization's software processes. This White Paper explains how rational uniied process supports organizations that are working to reach CMM Level 2 (repeatable) and

Level 2 c program design question (2), c program design question

Level 2 c program design question (2), c program design question Original article: http://www.cnblogs.com/imaker/p/6128049.html Year: 2010.9; 2012.3Compile the function fun. Its function is to calculate the π value based on the following formula (accuracy 0.0005 is required, that is, to stop iteration when a certain item is less than 0.0005 ).After the progra

Level 1 cache and level 2 cache in hibernate

Hibernate provides two levels of cache. The first level of cache is session-level cache, which belongs to the scope of transactions. This level of cache is managed by Hibernate and generally requires no intervention. The second level of cache is the sessionfactory level cach

What is the difference between hibernate's Level 1 cache and level 2 cache?

Before giving you a detailed description of the second-level cache of hibernate, we will first let you know the next-level cache, and then give a comprehensive introduction to the second-level cache of hibernate. Hibernate provides two levels of cache. The first level of cache is session-

Nhib.pdf beginner's Guide (10): level 1 and level 2 Cache

get operations will not cause nhib.pdf to query the database, but retrieve objects from the first-level cache. Clear Cache We use the following statement to request the session to remove an entity from the first-level cache: Session. evict (product ); To completely clear the cache, you can use the following code: Session. Clear (); The preceding statement should only be used in special cases, be

Cache Mechanism of hibernate review-level cache, level-2 cache, and query Cache

Before introducing the cache mechanism of hibernate, let's take a look at what cache is:Cache: a very common concept in the computer field. The cache is a collection. It is between an application and a permanent data storage source (such as a file or database on a hard disk). Its function is to reduce the frequency of applications directly reading and writing permanent data storage sources, this improves the Running Performance of applications. The cached data is the copy of the data in the data

Mybatis (9) ------ Level 1 cache, level 2 cache, mybatis ------

Mybatis (9) ------ Level 1 cache, level 2 cache, mybatis ------ In the previous chapter, we explained how to improve query efficiency through mybatis lazy loading. In addition to lazy loading, what other methods can be used to improve query efficiency? This is the cache in this chapter. Mybatis provides a level-1 cache

Experience 15-hibernate Optimization 2-cache (first-level, two-level)

Transaction scope: The cache can only be accessed by the current transaction. The life cycle of the cache depends on the lifecycle of the transaction, and when the transaction ends, the cache ends the lifecycle. In this range, the cached media is memory. Note: The first-level cache, which is the session cache, is actually a transaction-scoped cache. 2 Process scope: caching is shared by all transactions w

Summary of level 1 cache, level 2 cache, and query cache in hibernate

I,Level 1 Cache1. The first-level cache only caches the entire object and does not cache object attributes;2. The first-level cache is a session-level cache and cannot be used across multiple session objects;3. The load/get method of the session supports reading and writing

[Hibernate] level-1 and level-2 buffering, and hibernate Buffering

[Hibernate] level-1 and level-2 buffering, and hibernate Buffering Hibernate buffer is divided into two types by level: Session and SessionFactory. Some are also three types, and the other is Query Buffer. Of course, query buffering relies on second-level buffering. OK. Wha

Mybatis Study Notes-Level 1 cache and level 2 Cache

1. level-1 cache: The hashmap local cache based on perpetualcache. Its Storage scope is session. After the session is flushed or closed, all the caches in the session will be cleared. 2. The second-level cache mechanism is the same as that of the first-level cache, which is also used by default.PerpetualcacheHashmapSto

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