https://github.com/vankka/dynamicproxy

Library to help with dynamically proxying Java interfaces
https://github.com/vankka/dynamicproxy

development-tools java

Last synced: about 1 month ago
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Library to help with dynamically proxying Java interfaces

• Host: GitHub
• URL: https://github.com/vankka/dynamicproxy
• Owner: Vankka
• License: mit
• Created: 2022-06-13T16:02:46.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2024-07-20T14:17:26.000Z (5 months ago)
• Last Synced: 2024-10-11T03:22:11.050Z (2 months ago)
• Topics: development-tools, java
• Language: Java
• Homepage:
• Size: 116 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE

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README

        
# DynamicProxy

[![Maven Central](https://img.shields.io/maven-central/v/dev.vankka/dynamicproxy?label=release)](https://central.sonatype.com/search?q=g%253Adev.vankka+dynamicproxy)

[![Sonatype Nexus (Snapshots)](https://img.shields.io/nexus/s/dev.vankka/dynamicproxy?label=dev&server=https%3A%2F%2Fs01.oss.sonatype.org)](https://s01.oss.sonatype.org/#view-repositories;snapshots~browsestorage~dev/vankka)

Library to help with dynamically proxying Java interfaces

## Dependency

⚠️ Dependency info & additional build tool information is WIP

### Gradle

```groovy

repositories {

    mavenCentral()

}

dependencies {

    compileOnly 'dev.vankka:dynamicproxy:1.0.0'

    runtimeOnly 'dev.vankka:dynamicproxy:1.0.0:runtime'

    annotationProcessor 'dev.vankka:dynamicproxy:1.0.0'

}

```

## Example

### Interface

```java

interface Person {

    

    String getName();

    int getAge();

    void remove();

}

```

### Proxy template

A `abstract` class annotated with `@Proxy` implementing the desired interface 

```java

@Proxy(Person.class)

public abstract class PersonDynamic implements Person {

    

    @Override

    public int getAge() {

        return CallOriginal.call() + 1;

    }

}

```

### Using the (generated) proxy

```java

public class Test {

    public static void proxyTest() {

        Person originalPerson = new PersonImpl();

        Person proxyPerson = new PersonDynamicProxy().getProxy(originalPerson);

        

        System.out.println(originalPerson.getAge()); // 20

        System.out.println(proxyPerson.getAge()); // 21

    }

}

```

## Using the `@Original` annotation

If the `@Original` is set on a field of the proxy template class, it will be used for the proxy created by `getProxy`, example below

```java

@Proxy(Person.class)

public abstract class PersonDynamic implements Person {

    

    @Original

    private final Person person;

    

    private final String lastName;

    

    public PersonDynamic(Person person, String lastName) {

        this.person = person;

        this.lastName = lastName;

    }

    

    @Override

    public String getName() {

        return person.getName() + " " + lastName;

    }

}

```

```java

public class Test {

    public static void proxyTest() {

        Person originalPerson = new PersonImpl();

        Person proxyPerson = new PersonDynamicProxy(originalPerson, "Smith").getProxy();

        

        System.out.println(originalPerson.getName()); // John

        System.out.println(proxyPerson.getName()); // John Smith

    }

}

```