hibernate doesn’t get the next_val of the sequence
I use the postgresql database. I have a serial field in one table, the serial field is not primary key, and it is used to allocate port number to avoid duplication, the serial starts from 30001 for...
View ArticleSend HTML message with links using Mailgun
I am trying to send and HTML based message which includes a link using mailgun in Java. The issue is that the HTML code is displayed as is in the email client and it does not render it as HTML...
View ArticleJava – java.sql.SQLException: Field doesn’t have a default value
I am aware that the certain field doesn’t have a default value. I’ve been using MySQL 5.5.28 and it does work whenever I insert without specifying a value on that field. The field is TINYINT and by...
View ArticleGetting HTML element handle from MATLAB
I need to connect MATLAB to a webpage then get some data, fill some text in webpage and run some java scripts (e.g. pushing a button). Based on answer in Running a JavaScript command from MATLAB to...
View Articlehow to get field name of class in java
Hello all sorry my language is Bad! This is my code: MyCustomClass temp = new MyCustomClass(); for (int i = 0; i < jsonarray.length(); i++) { JSONObject obj = jsonarray.getJSONObject(i); temp.ID =...
View ArticleJackson XML custom field deserializer
When using Jackson for JSON processing I extended JsonDeserializer<T> and was able to handle custom deserialization. Is there a similar thing for processing XML with Jackson? import...
View ArticleHibernate pre update not updating field
Hi everyone I’m having some problems with the updated_at column in my database. I’m using hibernate and when I update a model, everything works fine except for the @preUpdate method. All my application...
View ArticleJava double checked locking – Strings
Given that strings contain final field, does it mean in the context of double checked locking it is not necessary to declare them volatile? E.g. class SomeClass{ private String val; String getVal(){...
View ArticleHow format date time field without hour portion in C#
I am inserting date into database from text-boxes in MVC5 using C#. I try to get only date without the hour portion, but it saves like: 10/10/2019 12:00:00 AM when I only enter 10/10/2019 in the text...
View ArticleHow get the name of a Integer variable in Java?
I have a class, that own multiple Integer. I need to get their name from the variable. public class UserOptions { public UserOptions() { } int HELP, HAPTIC, REALTIME, RETRIEVE, ADMIN, FREE; public...
View ArticleWhy don’t we require a lazy-init getter to be synchronized (the holder idiom)?
I’m reading J. Bloch’s effective Java and now I’m at the section about lazy-initialization. Consider the following class: public class LazyInit{ public static getObject(){ //Not synchronized return...
View ArticleXPath evalutation with Saxon doesn’t work for nodename
Why doesn’t the following xpath return any results with Saxon 9.6 in Java? //field The strange part is I also evaluated //* and looped over the results comparing the nodeNames with “field” and got 889...
View ArticleCompare to_date(CurrentDate) with timestamp
I just want to compare my current date with the timestamp field only date not time but it does not compare with it because the query becomes something like this. How can i do that kindly help Query:...
View ArticleMulti-threading with Swing
I am trying to write a multi-thread program with Swing. Essentially how the program works is that when it runs it will have a robot(represented by a circle in screenshot) that is wondering around in a...
View ArticleError in code : The constructor PrintRenderer(PrinterJob) is undefined,...
Error in code import java.awt.print.PrinterJob; import javax.xml.transform.*; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.sax.SAXResult; import...
View ArticleInput text field is not refreshing after ajax response
the response from p:commandLink is not refreshing the input text field where as the output text field with the same value is getting refreshed. The post Input text field is not refreshing after ajax...
View ArticleWhy Eclipse is not allowing me to select EJB Client JAR for a 2.1 EJB Project?
My environment is Java 1.7, Eclipse Luna, WildFly 8.x, XDoclet 1.2.3, Windows 7. I want to create a new EJB 2.1 project using XDoclet. I went to Java EE Perspective. Select File –> New –> EJB...
View Articlec#.net Custom Validation throwing an error when a field is editted correctly
I have the following simple code to check the gender of a member has been entered correctly. public partial class Member { partial void OnGenderChanging(string value) { if (!((value.ToLower() ==...
View ArticleHow to getText from the disabled input field in selenium java
How to get Text from disabled input field in selenium java? Below is the HTML tag. <input id="endDate" class="ng-pristine ng-untouched ng-valid ng-valid-maxlength"...
View ArticleA ‘Required’ marked field always prompt with error ‘Entity Validation Failed,...
I’m using Asp.net web api 2 + entity framework 6. Basically I have 2 models: public class MyOrderModel { public int Id { get; set; } public string OrderNumber { get; set;} public string AuthCode { get;...
View Article
