innerbuilder 
IntelliJ IDEA plugin that adds a 'Builder' action to the Generate menu (Alt+Insert) which generates an inner builder class as described in the Effective Java book. Works with IntelliJ IDEA 2019 and later.
public class JavaBean {
private final String foo;
private String bar;
private int qux;
private Double x,y;
private JavaBean(Builder builder) {
foo = builder.foo;
bar = builder.bar;
qux = builder.qux;
x = builder.x;
y = builder.y;
}
public static Builder newJavaBean() {
return new Builder();
}
public static final class Builder {
private String foo;
private String bar;
private int qux;
private Double x;
private Double y;
private Builder() {
}
public Builder foo(String val) {
foo = val;
return this;
}
public Builder bar(String val) {
bar = val;
return this;
}
public Builder qux(int val) {
qux = val;
return this;
}
public Builder x(Double val) {
x = val;
return this;
}
public Builder y(Double val) {
y = val;
return this;
}
public JavaBean build() {
return new JavaBean(this);
}
}
}Installation
In IntelliJ IDEA 2019 or later, open Preferences... > Plugins, search for innerbuilder. It should show up in
the plugin list, click INSTALL.
Manual installation
Download the plugin jar innerbuilder.jar and select Install Plugin From Disk in IntelliJ's plugin preferences.
Usage
Use Shift+Alt+B or Alt+Insert and select Builder.... Choose the fields to be included and press OK. When generating a
builder when a builder already exists, the plugin will try to update it. It will add missing fields and builder methods, but
never remove any fields or methods.
Rate
If you enjoy this plugin, please rate it on its plugins.jetbrains.com page.
Building
- Run
./prepare-build.shto download IntelliJ IDEA Community Edition - Run
mvn package
License
Licensed under the Apache License, Version 2.0.