In this post under Apache Pool, I will show with example how to create a synchronized object pool factory. Below is the complete main class for your reference Main class package package17; import org.apache.commons.pool2.PoolUtils; import org.apache.commons.pool2.PooledObjectFactory; public class StringBufferPoolExample17 { public static void main(String[] args) { StringBufferPooledObjectFactory stringBufferPooledObjectFactory = new StringBufferPooledObjectFactory(); PooledObjectFactory<StringBuffer> threadSafePooledObjectFactory = PoolUtils.synchronizedPooledFactory(stringBufferPooledObjectFactory);…… Continue reading PoolUtils synchronizedPooledFactory

In this post under Apache Pool, I will show with example how to create a synchronized object pool. Below is the complete main class for your reference Main class package package16; import org.apache.commons.pool2.ObjectPool; import org.apache.commons.pool2.PoolUtils; import org.apache.commons.pool2.impl.GenericObjectPool; public class StringBufferPoolExample16 { public static void main(String[] args) { GenericObjectPool<StringBuffer> genericObjectPool = new GenericObjectPool<StringBuffer>(new StringBufferPooledObjectFactory()); ObjectPool<StringBuffer> threadSafeGenericObjectPool…… Continue reading PoolUtils synchronizedPool

In this post under Apache Pool, I will explain with example the purpose of “getReturnedCount” method. This method is mainly used when generating statistics of a particular object pool. This method returns the total number of objects returned back to pool during the lifetime of the pool. So for example, if we have pool running…… Continue reading ObjectPool getReturnedCount example

In this post under Apache Pool, I will explain with example the purpose of “getCreatedCount” method. This method is mainly used when generating statistics of a particular object pool. This method returns the total number of objects created during the lifetime of the pool. So for example, if we have pool running for 1 hour…… Continue reading ObjectPool getCreatedCount example

In this post under Apache Pool, I will explain with example the purpose of “getBorrowedCount” method. This method is mainly used when generating statistics of a particular object pool. This method returns the total number of objects borrowed from the pool during the lifetime of the pool. So for example, if we have pool running…… Continue reading ObjectPool getBorrowedCount example

In this post under Apache pool, I will show with example how to clear idle objects from the pool. For our example lets create a pool with 5 objects and then make 3 out of them idle. I will then show how to clear those 3 idle objects. Below is the complete main code for…… Continue reading Clearing ObjectPool of Idle objects

In this post under Apache Pool, I will explain with example the purpose of “MaxWait” duration property. This property is used in conjunction with “BlockWhenExhausted” property explained in previous post. This property works only when “BlockWhenExhausted” is set to “true”. When “BlockWhenExhausted” is set to true and the caller tries to get idle objects more…… Continue reading MaxWait duration property

In this post under Apache Pool, I will explain with example the purpose of “BlockWhenExhausted” property of an Object Pool. Lets say we have 3 idle objects in the object pool and the caller code retrieves all the 3 objects. As a result of which the pool will be empty i.e., no idle objects will…… Continue reading BlockWhenExhausted Pool Property

In this post under Apache Pool, I will explain Apache Pool’s object retrieval strategy with example. Whenever we request an object from an object pool, by default it follows LIFO (Last In First Out) strategy, to retrieve an idle object. For example if in a pool, object are added in the below order and all…… Continue reading Object Pools object retrieval strategy

In this post under Apache Pool, I will explain with example the purpose of “addObject” method in Apache Pool. In Apache Pool we can create three types of object Pool1) GenericObjectPool2) GenericKeyedObjectPool3) SoftReferenceObjectPool All these classes support “addObject” method. Now lets understand the purpose of this method. If you refer to all my previous post,…… Continue reading Object Pool addObject method example