Primefaces : How to do selectOne without value to select ?

If you wan’t use list components and want have a select itens without value you can use this: <f:selectItem itemLabel=”Select … More

Primefaces : How to create a autocomplete component that save new objects when don’t find it ?

This code is a autocomplete component and works in this way : User try to find some example with part … More

Meteor : How to use ReactiveVar ?

Some times do you wan’t change values automatically in your page. In this situations you can use “ReactiveVar”. ReactiveVar package … More

Meteor : How to use the Google Directions API in my meteor application ?

Create a google key for your application You need  to go to the google developer console and create your application, … More

Meteor : How to deploy meteor application in Scalingo ?

Scalingo ( https://scalingo.com/ ) Scalingo hosting is really easy to use . For do deploys you need only push your project … More

[Java 8] – Lambdas expressions

Why should you care about this? It’s better to programming, it resolves the problems in a easy way, it easy … More

Hibernate : How to map boolean definitions column for postgreSQL?

@NotNull @Column(name = “column_name”, columnDefinition = “boolean default true”) private boolean columnName ;

PostgreSQL : Useful command line tips

How to access my postgree ? $psql -h server -U userName  How to list my existing databases ? $\l  How … More

Primefaces : The commandLink, commandButton, nothing was invoking my actions or my actionListeners in the backend. It happens only when I call inside of the my tree or treeTable . How resolve this ?

It’s easy ! You need set true the attribute expand of the yours nodes and parents. Example : public TreeNode … More

JavaServer Faces : java.lang.IllegalStateException: Component ID has already been found in the view. How resolve ?

Firstly you really need validate your code, because this error says that you have two components with the same ID … More