javabeans

What is the difference between set(String) and setValue(String) in the SimpleStringProperty class? I know that set(String) is derived from StringPropertyBase , but this makes me even more wonder, why there additionally is setValue(String) ? set/setValue and get/getValue methods pairs exist to align Object properties with primitive types properties like BooleanProperty or DoubleProperty : BooleanProperty: void set(boolean value) void setValue(java.lang.Boolean v) DoubleProperty: void set(double value) void setValue(java.lang.Number v) In these property classes ___Value methods work with

I have a properties file like this: my.properties file: app.One.id=1 app.One.val=60 app.Two.id=5 app.Two.val=75 And I read these values into a map property in my bean in Spring config file like this: spring-config.xml: <bean id="myBean" class="myClass" scope="singleton"> <property name="myMap"> <map> <entry key="${app.One.id}" value="${app.One.val}"/> <entry key="${app.Two.id}" value="${app.Two.val}"/> </map> </property> </bean> This way if I add a new id/val to the properties file, I must add a row in config xml in order to have the new id/val in myMap. My question is, is there a way to

On the Tomcat FAQ it says: "Tomcat is not an EJB server. Tomcat is not a full J2EE server." But if I: use Spring to supply an application context annotate my entities with JPA annotations (and use Hibernate as a JPA provider) configure C3P0 as a connection pooling data source annotate my service methods with @Transactional (and use Atomikos as JTA provider) Use JAXB for marshalling and unmarshalling and possibly add my own JNDI capability then don't I effectively have a Java EE application server? And then aren't my beans EJBs? Or is there some other defining characteristic? What is it that a

I read spring docs on this subject several times, but some things are still unclear to me. Documentation states: If you want to inject (for example) an HTTP request scoped bean into another bean, you must inject an AOP proxy in place of the scoped bean. That is, you need to inject a proxy object that exposes the same public interface as the scoped object but that can also retrieve the real, target object from the relevant scope (for example, an HTTP request) and delegate method calls onto the real object. Config example is as follows: <bean id="userPreferences" class="com.foo.UserPreferences"

I am getting an ArrayIndexOutOfBoundsException on service start up (Bean creation) when i use Java 8 features. Java 8 has been set up and has been working. The code compiles correctly. On service start, the service fails to listen to port as the beans don't get created. When i change the code (remove java 8 constructs) the service starts and everything works fine. This is the code i am using (the working code for which the service starts): for (Item itemObject : response) { if (itemObject.hasId()) { idList.add(String.valueOf(itemObject.Id()); } } Same code using Java 8 constructs: response

This question already has an answer here: Difference between Java Bean and Enterprise Java Beans? [closed] 4 answers Just a simple question from a relative Java newbie: what is the difference between a JavaBean and an EJB? cletus Java bean is just a set of conventions. EJB is a standard for J2EE business components. Specifically a Java bean: has a public default constructor; readable property methods precedes with "get"; writable property methods precedes with "set"; and is Serializable. For example, a Java bean with a property of "margin" would minimally look like this: public class MyBean