{"id":1612,"date":"2011-03-09T01:13:59","date_gmt":"2011-03-08T19:43:59","guid":{"rendered":"http:\/\/JitendraZaa.com\/blog\/?p=1612"},"modified":"2011-03-09T01:13:59","modified_gmt":"2011-03-08T19:43:59","slug":"serialization-marshalling-deflating-in-java","status":"publish","type":"post","link":"https:\/\/www.jitendrazaa.com\/blog\/java\/serialization-marshalling-deflating-in-java\/","title":{"rendered":"Serialization \/ Marshalling \/ Deflating in JAVA"},"content":{"rendered":"

Writing Java Objects or keeping the state of Objects into DataBase or Files (In Binary Format) is known as Serialization or Marshalling or deflating.<\/strong>
\nReading Java Objects back in Binary Format from file or Database is known as DeSerialization or UnMarshalling or inflating.<\/strong><\/p>\n

<\/strong><\/p>\n

\"Serialization<\/a>
Serialization \/Marshalling \/deflating - DeSerialization\/ UnMarshalling \/inflating<\/figcaption><\/figure>\n

Transient :<\/strong> If any variable is defined by using keyword “transient”\u009d, then object will not serialize that variable. During deserialization default value of that datatype will be set.
\n Static :<\/strong> as static variables are class level variables, so it is not serialzed as the object state.<\/p>\n

Example:<\/p>\n

\npackage com.G2.Serialization;\n\nimport java.io.FileInputStream;\nimport java.io.FileNotFoundException;\nimport java.io.FileOutputStream;\nimport java.io.IOException;\nimport java.io.ObjectInputStream;\nimport java.io.ObjectOutputStream;\nimport java.io.Serializable;\n\nclass Home implements Serializable\n{\n\t transient int flatNo;\n\t String OwnerName;\n}\n\nclass Door extends Home\n{\n\tprivate boolean isDoubleLock;\n\tprivate String DoorMaterial;\n\tpublic void setValue(boolean isDLock,String dMaterial, int fNo,String Owner)\n\t{\n\t\tisDoubleLock = isDLock;\n\t\tDoorMaterial = dMaterial;\n\t\tflatNo = fNo;\n\t\tOwnerName = Owner;\n\t}\n\tpublic void Display()\n\t{\n\t\tSystem.out.println("Double Lock - "+isDoubleLock);\n\t\tSystem.out.println("Material - "+DoorMaterial);\n\t\tSystem.out.println("flat No - "+flatNo);\n\t\tSystem.out.println("Owner Name - "+OwnerName);\n\t}\n}\n\npublic class SerializationDemo {\n\tpublic static void main(String[] args) throws FileNotFoundException, IOException,\nClassNotFoundException {\n\t\tObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("Demo.srl"));\n\n\t\tDoor d = new Door();\n\t\td.setValue(true, "Wood", 24, "Minal Zaa");\n\t\tSystem.out.println(" *** Serializing Object *** ");\n\t\tout.writeObject(d);\n\n\t\tout.close();\n\n\t\tObjectInputStream in = new ObjectInputStream(new FileInputStream("Demo.srl"));\n\t\tSystem.out.println(" *** DeSerializing Object *** ");\n\t\tDoor d1 = (Door) in.readObject();\n\t\td1.Display();\n\n\t\tin.close();\n\n\t}\n}\n<\/pre>\n
 Output:<\/strong><\/p>\n
*** Serializing Object ***<\/p>\n
*** DeSerializing Object ***
\nDouble Lock – true
\nMaterial – Wood
\nflat No – 0
\nOwner Name – Minal Zaa<\/p><\/blockquote>\n
 Note from example:<\/strong>
\nParent class implements interface “Serializable<\/strong>“\u009d and child class extends that, so child class automatically gets serialized.<\/strong>
\nVariable “flatNo”\u009d is transient <\/strong>and therefore it is not serialized.<\/p>\n
further read – Externalization API of Java.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Concept of Serialization \/ Marshalling \/ Deflating in JAVA<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"jz_research_post":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3],"tags":[329],"class_list":["post-1612","post","type-post","status-publish","format-standard","hentry","category-java","tag-java"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":2061,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/explain-serialversionuid-in-java\/","url_meta":{"origin":1612,"position":0},"title":"Explain serialVersionUID in Java","author":"Jitendra","date":"April 20, 2011","format":false,"excerpt":"What is serialVersionUID and what is its need ?","rel":"","context":"In "JAVA"","block_context":{"text":"JAVA","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/java\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2049,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/explain-externalizable-in-java\/","url_meta":{"origin":1612,"position":1},"title":"Explain Externalizable in Java","author":"Jitendra","date":"April 20, 2011","format":false,"excerpt":"Explain Externalizable in Java","rel":"","context":"In "JAVA"","block_context":{"text":"JAVA","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/java\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2017,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/java-j2ee-interview-questions-1\/","url_meta":{"origin":1612,"position":2},"title":"Java – J2EE Interview Questions – 1","author":"Jitendra","date":"April 15, 2011","format":false,"excerpt":"JAVA - J2EE Interview Questions - 1, JAVA - J2EE Interview Questions - 1,custom tag JSP, Externalization , serialVersionUID, difference between interface and abstract class, iterate HashMap","rel":"","context":"In "JAVA"","block_context":{"text":"JAVA","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/java\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1750,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/create-xml-file-using-jaxp-and-transformation-apis\/","url_meta":{"origin":1612,"position":3},"title":"Create XML File using DOM Parser of JAXP and Transformation APIs","author":"Jitendra","date":"March 22, 2011","format":false,"excerpt":"Example of Creating XML File using JAXP and Transformation APIs","rel":"","context":"In "JAVA"","block_context":{"text":"JAVA","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/java\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":3050,"url":"https:\/\/www.jitendrazaa.com\/blog\/salesforce\/my-favorite-top-10-features-of-winter-13-release-salesforce\/","url_meta":{"origin":1612,"position":4},"title":"My Favorite Top 10 Features of Winter 13 release – Salesforce","author":"Jitendra","date":"August 24, 2012","format":false,"excerpt":"Dear Friends, I am very excited to write this article about the cool Winter 13 features which i have added in My List. There are lots of lots of new features added in this release and i have made the list of my top 10 favorite features. Yesterday Salesforce published\u2026","rel":"","context":"In "Salesforce"","block_context":{"text":"Salesforce","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/salesforce\/"},"img":{"alt_text":"Salesforce Winter 13 Release Notes","src":"https:\/\/i0.wp.com\/jitendrazaa.com\/blog\/wp-content\/uploads\/2012\/08\/Salesforce-Winter-13-Release-Notes-300x212.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":3460,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/hibernate\/introduction-hibernate\/","url_meta":{"origin":1612,"position":5},"title":"Introduction to Hibernate","author":"Jitendra","date":"October 1, 2013","format":false,"excerpt":"Post by - Subhash Bhajankar What is the problem that hibernate is trying to solve? \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Let's take an example of simple class that you have in your application. 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