Tech Trek: A Software Engineer's Guide to Code and Beyond

I am working on multi module maven project and If I define any plugin in the parent pom.xml file, It get executed for all the child build as well. In simple language, I wanted to use one plugin in parent pom.xml file which read properties file from the base directory but whenever I executes it, all the sub pom.xml tries to read the properties file from their base directory and its ends up in maven failed. To resolve the above issue, We just need to add "inherit' attributes in the plugin. Example : <plugin> <groupId>org.codehaus.mojo</groupId> <artifactId>properties-maven-plugin</artifactId> <version>1.0-alpha-2</version> <inherited>false</inherited> <executions> <execution> <phase>initialize</phase> <goals> <goal>read-project-properties</goal> </goals> <configuration> <files> ...

Yesterday while working on my project, I got one requirement where I need to store list of Array into the database, I checked on Google, went through various site but didn't get much information. Everyone talks about creating new entity and do onetomany relationship BUT I wanted to create a collection of basic types. Finally I come across @ElementCollection annotation provided by JPA 2.0 which resolves my problem. Problem : Input JSON which we need to store in DB: { "schemas": ["urn:scim:schemas:core:1.0", "urn:scim:schemas:extension:enterprise:1.0"] }            Where schemas is Array of String. Solution : Just add following annotation in your POJO i,e @ElementCollection @CollectionTable(name = "SCIM_SCHEMAS", joinColumns = @JoinColumn(name = "SCHEMA_ID")) @Column(name = "SCIM_SCHEMA") private List<String> schemas; It will create the table named "SCIM_SCHEMAS" having columns 'SCHE...

This tutorial will demonstrate how can you generate Java Objects from XML documents using xjc tool. The tool “xjc” is used to generate the annotated Java classes from the XSD schema Suppose I am using below XML file to generate Java Objects i,e <?xml version="1.0" encoding="UTF-8"?> <adaptorapp id="application"> <instance id="instance1"> <connectiondetails> <accesskey>abcde</accesskey> <secretkey>fghij</secretkey> </connectiondetails> </instance> <instance id="instance2"> <connectiondetails> <accesskey>klmnop</accesskey> <secretkey>qrstuvwxyz</secretkey> </connectiondetails> </instance> </adaptorapp> Now  to generate Java Objects we need to create one xsd file(say "connection.xsd") : <?xml version="1.0"?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema...