Spring Core - Mixed Dependency Injection

This project demonstrates Mixed Dependency Injection in the Spring Framework using XML Configuration.

The project consists of two classes:

• Manager – Created using Constructor Injection
• Project – Receives the Manager object through Constructor Injection, while its own properties (projectName and duration) are initialized using Setter Injection.

This example illustrates how constructor and setter injection can be combined in a real-world scenario.

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🚀 Features

• Spring IoC Container
• XML-based Bean Configuration
• Constructor Injection
• Setter Injection
• Reference Type Injection
• Mixed Dependency Injection
• Maven Project

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🛠️ Technologies Used

• Java
• Spring Core
• Maven
• XML

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📂 Project Structure

SpringCore-MixedInjection
│
├── src
│   └── main
│       ├── java
│       │   ├── com
│       │   │   └── configuration
│       │   │       └── application-context.xml
│       │   │
│       │   └── springcore
│       │       └── SetterAndConstructorInjection
│       │           ├── App.java
│       │           ├── Project.java
│       │           └── Manager.java
│       │
│       └── resources
│
├── pom.xml
├── README.md
└── .gitignore

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XML Configuration

Manager Bean (Constructor Injection)

<bean id="manager" class="springcore.SetterAndConstructorInjection.Manager">

    <constructor-arg value="Ravi Shankar"/>
    <constructor-arg value="IT"/>

</bean>

Project Bean (Mixed Injection)

<bean id="project" class="springcore.SetterAndConstructorInjection.Project">

    <constructor-arg ref="manager"/>

    <property name="projectName" value="Employee Management System"/>
    <property name="duration" value="6 Months"/>

</bean>

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Output

Project [
    projectName=Employee Management System,
    duration=6 Months,
    manager=Manager [managerName=Ravi Shankar, department=IT]
]

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Concepts Covered

• Spring IoC Container
• Dependency Injection
• Constructor Injection
• Setter Injection
• Reference Type Injection
• Mixed Dependency Injection
• XML Bean Configuration

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Author

Prakhar Panchal