object pool

Background:C3P0 Connection PoolJdbc.maxpoolsize=1Jdbc.minpoolsize=1Jdbc.initialpoolsize=1Connection conn = Datasource.getconnection ()After the Close method is executed, the connection is really closed instead of being put back in the connection pool.I found a lot of people on the Internet. After using the connection pool, connection's Close method is not really closed, just put it back in the pool for use.

usingSystem;usingSystem.Collections.Generic;usingUnityengine;usingunityengine.events; Public classObjectpool { Private ReadOnlystackNewStack(); Private ReadOnlyFuncactiononnew; Private ReadOnlyUnityactionActiononget; Private ReadOnlyUnityactionactiononrelease; Public intCountall {Get;Private Set; } Public intcountinactive {Get{returnstack. Count; } } Public intcountactive {Get{returnCountall-countinactive;} } PublicObjectpool (funcNULL, unityactionNULL) {actiononnew=

Dbconnpool = new Jdbcconnectionpool ("Com.mysql.jdbc.Driver", "Jdbc:mysql://127.0.0.1:3306/test", "Root", "123");Getting database connection objectsConnection conn = Dbconnpool.checkout ();Using Database Connection objects// ...Freeing a database Connection objectDbconnpool.checkin (conn);} } Copy Code code as follows: Class Pool { private static final max_available = 100; Private final semaphore available = new semaphore (max_avai

The thread pool is the process of fetching/returning threads from a number of predesigned threads and reusing threads to save the overhead of frequently creating new destruction threads. In the same vein, object pooling is used to reclaim/return objects from many of the same objects that have been created in advance, and to save the overhead of creating destruction objects frequently by reusing objects.

Environment: SharePoint 2010 + vs2010. Use vs to create an event receiver. Everything works. After dinner at noon, the following error occurs during redeployment: Deployment steps"Reclaim IIS applicationsProgram"Pool" error: the communication object system. servicemodel. instancecontext cannot be used for communication because it has been aborted. Corresponding English: Error occurred in deployment step

Concept of the javaweb framework-its own object storage pool and the concept of the javaweb framework Original Design:When a website provides services, many objects such as bean and dao are created frequently. However, these objects can be reused.Design Concept:The ObjectPool of the object connection pool uses the sing

avoid generating columns and destroying pillars, we use object pooling to recycle pillars. Using System.Collections; Using System.Collections.Generic; Using Unityengine; public class Columnpools:monobehaviour {//Prefab public gameobject Columprefab; Number of object pools public int colmupoolsize = 5; Private gameobject[] Columcnspool; Let the front-generated pillars step in the camera r

////ObjectPool.h//Dragonball////Created by the user on 13-8-22.////#include#include#include"cocos2d.h"#includeusing namespacestd;using namespacecocos2d;templateclassobjectpool{ Public: Objectpool (intinitsize): M_initsize (initsize) {Ccassert (m_initsize>=4,"M_initsize should >= 4"); Allocate (initsize); }; Virtual~Objectpool () {For_each (M_usedlist.begin (), M_usedlist.end (), freeobject); For_each (M_freelist.begin (), M_freelist.end (), freeobject); } //request an Obj

#小整数对象池‘‘‘Small integer object is resident memory and will not be deleted from the RecycleIntegers are used extensively in programs, and Python uses a small integer pool of objects to optimize speed, avoiding the frequent application and destruction of memory space for integers.Python's definition of small integers [-5,257] These books are built in advance and are not garbage collected.In a Python program,

The implementation of the object pool is actually very simpleThe thought is also very simple:Use a queue to hold all objects, get an object when needed, take an object from the queue header, and then re-dedicate the object to the tail of the queue when it is exhausted.#ifnde

Object pooling services can reduce the overhead of creating each object from scratch. When an object is activated, it is extracted from the pool. When you deactivate an object, it is put back in the pool, waiting for the next requ

In recent ERP projects, Ajax is used for data exchange in many places. A page usually needs to send multiple request information, that is, multiple JS functions are executed, and the window is used. when the onload method executes multiple functions, only the execution results of the last function are displayed on the page. Although other functions are executed, they all seem to be overwritten and have no effect, if you want to think about it, the best way is to create a

The object pool is only used to manage pointers and objects and is not efficient. # Include If you are interested, you can test the above Code! The vector and queue of stl are relatively efficient, which is much faster than list. The object pool maintained by vector and queue has the same performance as the bare po