javabeans Questions

9

Solved

I have a simple Java POJO that I would copy properties to another instance of same POJO class. I know I can do that with BeanUtils.copyProperties() but I would like to avoid use of a third-party l...
Physician asked 7/5, 2009 at 15:43

4

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Why does Spring automatically choose the superclass types during autowiring? For instance, if I have @Component public class Foo {} @Component public class Bar extends Foo {} and someone autow...
Witch asked 22/5, 2013 at 4:20

2

I am facing an issue while creating a bean for dependency injection. Here is the scenario. I am dealing with MongoDB repository, I have also created a class which uses it. I am trying to instantia...
Hugues asked 12/6, 2015 at 5:2

3

I have a Java bean which has a field which in turn is another bean public class BeanOne { private String fieldOne; private BeanTwo fieldTwo; public String getFieldOne() {return this.fieldOne;}...
Unselfish asked 12/2, 2014 at 6:16

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I am looking for configurationOnProperty usage where I can specify to consider more than one value as shown below Eg: @ConditionalOnProperty(value = "test.configname", havingValue = "value1" or "v...
Merv asked 10/7, 2018 at 4:47

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I'm a Spring newbie with a seemingly simple Spring problem. I worked on this for hours without luck. Here is the exception, followed by the code (thank you in advance): Exception in thread "main" ...
Paraphernalia asked 6/2, 2014 at 20:46

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I'm experimenting with Spring, I'm following the book: Spring: A developer's notebook. I'm getting this error: "Bean property 'storeName' is not writable or has an invalid setter method. Does the...
Richia asked 14/10, 2010 at 7:6

9

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Have seen some similar questions: What is the difference between a JavaBean and a POJO? What is the Difference Between POJO (Plain Old Java Object) and DTO (Data Transfer Object)? Can you also ...
Singultus asked 23/10, 2009 at 9:30

5

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I am configuring Websockets in Spring basically by following the guide provided in the documentation. I am currently trying to send a message from the server to the client as explained in the sect...
Hereditary asked 8/4, 2014 at 1:21

3

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I am creating a site using VMC and using beans to transfer the data from the Model to the Controller/Views. I plan to implement some basic and very simple caching that will store the beans in a si...
Rotten asked 31/12, 2012 at 1:32

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I am trying to make my first bean in Spring but got a problem with loading a context. I have a configuration XML file of the bean in src/main/resources. I receive the following IOException: Exc...
Apiculture asked 15/10, 2012 at 10:32

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if I have the following private member: private int xIndex; How should I name my getter/setter: getXindex() setXindex(int value) or getxIndex() setxIndex(int value) EDIT: or getXIndex() ...
Unequaled asked 1/6, 2010 at 8:1

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This question is close, but still not what I want. I'd like to assert in a generic way that two bean objects are equivalent. In case they are not, I'd like a detailed error message explaining the d...
Anybody asked 16/11, 2009 at 9:27

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I have a little problem with default methods in Interface and BeanInfo Introspector. In this example, there is interface: Interface public static interface Interface { default public String getL...
Predecease asked 22/4, 2014 at 12:5

8

I'm trying to write a CSV using openCSV 4.1, from a list of beans. However, whenever I run my programme, I get CsvBeanIntrospectionException, and then a NoSuchMethodException: Unknown property 'fie...
Geelong asked 22/5, 2018 at 9:13

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Say I have a very simple java object that only has some getXXX and setXXX properties. This object is used only to handle values, basically a record or a type-safe (and performant) map. I often need...
Alsace asked 11/4, 2009 at 7:37

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I have this hierarchy in my project: ▼ server ▼ myproject ▼ src ▼ main ▼ java ▼ rest ▼ repository Ⓘ MyRepository ▶ resources ▼ test ▼ java ▼ rest Ⓒ MyRepositoryTest This is the MyRepos...
Endue asked 15/2, 2022 at 9:11

1

I have a super class and child class: @Data @AllArgsConstructor public class Parent { private String name; } @Data public class Child extends Parent { private int age; // I want Lombok to c...
Logwood asked 25/9, 2022 at 8:21

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I am new to Spring MVC and have a little idea of the usage of java beans in Java. What is the basic difference between a Java bean and Spring bean?
Immunogenic asked 18/2, 2014 at 22:10

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APPLICATION FAILED TO START Description: Parameter 0 of method modifyRequestBodyGatewayFilterFactory in org.springframework.cloud.gateway.config.GatewayAutoConfiguration required a bean of type...
Canada asked 21/9, 2018 at 15:49

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Eg. boolean isCurrent = false; What do you name its getter and setter?
Assyriology asked 16/3, 2011 at 8:26

7

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I have a logback appender defined in the logback.xml, it's a DB appender, but I'm curious if there is any way to configure the appender in java using my own connection pool defined as a bean. I f...
Snailfish asked 4/6, 2013 at 6:13

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@Configuration public class MyConfig { @Bean(name = "myObj") public MyObj getMyObj() { return new MyObj(); } } I have this MyConfig object with @Configuration Spring annotation. My question i...
Nicias asked 10/9, 2014 at 22:8

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I understood, I think, that a "Bean" is a Java-class with properties and getters/setters. As much as I understand, it is the equivalent of a C struct. Is that true? Also, is there a real...

3

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I want to create CSV with Jasper Reports. There are many related questions, but nothing is working for me. Below is my bean class: public class DataBean { public String First_name; public Strin...
Dani asked 19/12, 2014 at 4:37

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