Boxer

Additional

Language
Java
Version
0.4.2 (Feb 3, 2016)
Created
Dec 9, 2014
Updated
Feb 3, 2016 (Retired)
Owner
Lars Werkman (LarsWerkman)
Contributor
Lars Werkman (LarsWerkman)
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Boxer

Annotation based serialization library for Java and Android frameworks, by generating boilerplate code.

  • Define classes as serializable with the @Box annotation.
  • By default all fields will be serialized, except fields with the transient modifier
  • the @Wrap annotation will wrap a List fields into the appropriate Subclass. (Subclass needs to have a no-args constructor)
  • Default non-class serialization possible
@Box
public class Example {

    private int height;
    private transient int width;
    public double weight;
    
    @Wrap(Stack.class)
    public List<Example> stack;

    //Empty constructor for Injection
    public Example(){

    }

    //Getters and Setters for private fields
}

Retrieving a Boxer instance, and serializing and de-serializing your data.

Example using the Bundle class:

public class ExampleActivity extends Activity {

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);

        Boxer boxer = Boxer.from(outState);
        boxer.add("Example", new Example());
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        Boxer boxer = Boxer.from(savedInstanceState);
        boxer.get("Example", Example.class);
    }
}

To register your own Boxer wrapper for a specific class:

//Registering a wrapper class for a specific Target class
Boxer.registerWrapper(Wrapper.class, Target.class);

//Removing a wrapper for a specific wrapper class
Boxer.removeWrapper(Wrapper.class);

//Removing a wrapper for a target class
Boxer.removeWrapperForType(Target.class);

//Clearing all the wrappers
Boxer.clearWrappers();

TypeAdapters define how an non-Boxable class should be serialized and deserialized. TypeAdapter will need to be registered with the @Adapter annotation. The type parameter of the TypeAdapter should be the class you want to serialize / deserialize.

@Adapter
public class DateTypeAdapter extends TypeAdapter<Date> {

    private static final String TIME_KEY = "time_key";

    @Override
    public void serialize(Boxer<?> boxer, Date object) {
        boxer.addLong(TIME_KEY, object.getTime());
    }

    @Override
    public Date deserialize (Boxer<?> boxer) {
        return new Date(boxer.getLong(TIME_KEY));
    }
}

@Serialize and @Deserialize are used to annotate methods that will be called after or before serialization or deserialization inside Boxable classes.

Both annotations take an Execution enum as parameter to specify when they will be executed. Default execution behaviour will be after serialization or deserialization.

The method can have a Boxer parameter or be empty.

@Serialize
public void serialization(Boxer<?> boxer){
 //Do something
}

@Deserialize(Execution.BEFORE)
public void deserialization(Boxer<?> boxer){
 //Do something
}

Current supported supported classes:

  • (Android) Bundle
  • (Android) Parcel
  • (Android) SQLiteDatabase (Experimental)
  • (Java/Android) DataMap

Beta phase!

Proguard

-dontwarn com.larswerkman.boxer.internal.**
-dontwarn com.larswerkman.boxer.wrappers.**
-keep class **$$Boxer { *; }
-keep class **_TypeAdapter { *; }
-keepnames class * { @com.larswerkman.boxer.annotations.Box *;}
-keepnames class * { @com.larswerkman.boxer.annotations.Adapter *;}
-keepclasseswithmembernames class * {
    @com.larswerkman.boxer.annotations.* <methods>;
}

Dependency

Adding it as a dependency to your project.

<dependency>
  <groupId>com.larswerkman</groupId>
  <artifactId>boxer</artifactId>
  <version>0.4.2</version>
</dependency>
dependencies {
    compile 'com.larswerkman:boxer:0.4.2'
}

License

Copyright 2015 Lars Werkman

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

Developed By

**Lars Werkman**