Connecting to LDAP server

In this post under Java LDAP, I will explain how to connect to LDAP server with an example. Below is the complete code Main Code 1 import java.util.Hashtable; 2 3 import javax.naming.Context; 4 import javax.naming.NamingException; 5 import javax.naming.directory.DirContext; 6 import javax.naming.directory.InitialDirContext; 7 8 public class LDAPDemo1 { 9 public static void main(String[] args) { 10…… Continue reading Connecting to LDAP server

NumberRangeRule example

In this post under Passay, I will explain with example the purpose of “NumberRangeRule” class. NumberRangeRule takes a range of numbers and verifies whether the user entered password doesn’t contain numbers in that range. So “NumberRangeRule” constructor takes two arguments1) starting number (inclusive)2) ending number (exclusive) Below is the complete Main class for your reference…… Continue reading NumberRangeRule example

Autowiring Optional beans

In this post under Spring Core, I will show with example how to use Java’s Optional class to declare a bean (to be injected) as optional. In one of my previous post under Spring Core, I showed you about “required” attribute in “@Autowired” annotation. For recap, “@Autowired” annotation has only one attribute named “required” whose…… Continue reading Autowiring Optional beans

Autowiring a collection and array of beans

In this post under Spring Core, I will explain with example how to autowire a collection and array of beans. For our example I will use the below “Dao” class Dao class package package22; public class Dao { private String daoName; public Dao(String daoName) { this.daoName = daoName; } @Override public String toString() { return…… Continue reading Autowiring a collection and array of beans

CollectionUtils getCardinalityMap method

In this post under Apache Collections, I will explain with example, the purpose of CollectionUtils “getCardinalityMap” method. This method takes a collection as an argument and returns a map. A map where key is an element from the collection, and value will be the number of times the element is repeated in the collection. So…… Continue reading CollectionUtils getCardinalityMap method

CollectionUtils intersection method

In this post under Apache Collections, I will explain with example the purpose of CollectionUtils “intersection” method. The “intersection” method compares two collections and return a new list containing items that are common in both of them. Below is the complete main code for your reference. Main class 1 package defaultPackage; 2 3 import org.apache.commons.collections4.CollectionUtils;…… Continue reading CollectionUtils intersection method

“required” attribute of @Autowired annotation

In this post under Spring Core, I will explain with example the purpose of “required” attribute of “@Autowired” annotation. When we tell Spring framework to wire two beans say “Bean2” to “Bean1” as shown below package package20;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Component;@Componentpublic class Bean1 { @Autowired private Bean2 bean2; public Bean2 getBean2() { return bean2; } public void…… Continue reading “required” attribute of @Autowired annotation