CODEWITHSUNDEEP
javaandroidauto-value
Tony Laidig
Tony Laidig

Reputation: 1078

Using AutoValue Annotations in Eclipse

I'm porting an SDK from Android to plain Java and have run into an AutoParcel annotation that I don't understand.

Here's the original class and a snippet below:

@AutoParcel.Builder
public abstract static class Builder {
    public abstract Builder id(String id);
...
    public abstract SimpleFeature build();
}

public static Builder builder() {
    return new AutoParcel_SimpleFeature.Builder();
}

I am able to pretty much port everything to AutoValue without incident, except that last function, as I don't understand what it is or it's equivalent in AutoValue.

Can someone explain what this is, and what its equivalent is in AutoValue?

Upvotes: 2

Views: 2062

Answers (2)

Tony Laidig
Tony Laidig

Reputation: 1078

As JohnWowUs' comment suggests, this was largely an Eclipse issue.

The link he mentioned was only part of the solution, but I didn't need to drop more JARs into the project. With the help of an issue in the AutoValue repo and specifically configuring the maven-compiler-plugin, setting JDK1.7 as a target, with the following section added to the pom.xml:

<annotationProcessors>
    <annotationProcessor>com.google.auto.value.processor.AutoValueProcessor</annotationProcessor>
</annotationProcessors>

Upvotes: 2

JohnWowUs
JohnWowUs

Reputation: 3083

The build annotation allows you to construct the immutable POJOs using the builder pattern i.e. something like

SimpleFeature.builder().id("test").build()

The equivalent annotation (not surprisingly since AutoParcel is a port of Autovalue with android specific features i.e. Parcelable) 

@AutoValue.Builder

You should be able to find much more comprehensive documentation at https://github.com/google/auto/tree/master/value#builders

Upvotes: 2

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