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Command Design Pattern
Command design pattern decouples the object that invokes the operation from the one that actually performs it. The one which executes…
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Spring Boot Customize Banner
By default spring boot looks out for banner.txt and banner(.jpg/.png/.gif) image. If it finds one and then it goes ahead…
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Mule accessing cookies example
In this article we will look into Mule’s support of reading and writing cookies. In order to write a cookie,…
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Java Find All Active Threads
In this article we will see how to find all the active threads running. One can find all the active…
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Observable Interval Example
Observable.interval() returns an observable that emits numbers in sequence on a specified scheduler. In this article, we will look into…
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PriorityQueue Internals
PriorityQueue is based on balanced binary heap tree data structure in which all the nodes of the tree are in…
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Chain of Responsibility Design Pattern
The chain of responsibility pattern as the name suggests allows the responsibility to be shared among a chain of objects…
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Mule ReplyTo Property Example
In this article we will look into the mule property “replyTo”. A JMS inbound endpoint with exchange pattern set to request-response indicates…
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AtomicReferenceArray Example
In this article, we will look into an example of AtomicReferenceArray. We will use it to build a trackable Future…
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RxJava Observable Defer Example
In this article we will look into an observable that defers the creation of the actual Observable till an Observer…
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Composite Design Pattern
The composite pattern is used when you want to create a tree structure where a component can be a leaf…
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Executors.newCacheThreadPool Example
In this article we are looking into one of the factory method of Executors called newCachedThreadPool. This is useful when…
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RxJava Observable Count Operator
In this article we will look into the ReactiveX count() operator and the internals involved. We will come to know…