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NoSQL – MongoDB

Key / Valye (HashMap)Tabular (BigTable)Document Oriented no Joinsno Complex Transactionsno SQL databasse -> databasetable -> collectionrow -> document JSON style document (BSON on the mongoDB servers) no predefined schematable has schemacollection does not have schema we do not need to pre-create the collection, first insertion will create the collection _id : timestamp+machine id+process id+counter db.posts.find$gt… Continue reading NoSQL – MongoDB

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Simple Wait / Notify Thread Example

This is a simple Wait / Notify example. I am utilizing an Object for synchronization purpose. You can synchronize on This or any other object. However, a dedicated object that you use only for synchronization will give you a better understanding of code and eases debugging. package com.sheidaei.sampleThread; /** * Created with IntelliJ IDEA. * User: shahin *… Continue reading Simple Wait / Notify Thread Example