Add a Bazel example with source generator

Author: keynmol

examples/bazel-example/WORKSPACE

@@ -69,7 +69,9 @@ maven_install(
     artifacts = [
         "com.google.protobuf:protobuf-java:3.15.6", # Required dependency by scip-java.
         "com.google.protobuf:protobuf-java-util:3.15.6", # Required dependency by scip-java.
-        "com.google.guava:guava:31.0-jre", # Not required dependency, only used by tests.
+        # These dependencies are only required for the tests
+        "com.google.guava:guava:31.0-jre", 
+        "com.google.auto.value:auto-value:1.5.3",
     ],
     repositories = [
          "https://repo1.maven.org/maven2",

examples/bazel-example/src/main/java/source-generator-example/Animal.java

@@ -0,0 +1,12 @@
+
+import com.google.auto.value.AutoValue;
+
+@AutoValue
+abstract class Animal {
+  static Animal create(String name, int numberOfLegs) {
+    return new AutoValue_Animal(name, numberOfLegs);
+  }
+
+  abstract String name();
+  abstract int numberOfLegs();
+}

examples/bazel-example/src/main/java/source-generator-example/BUILD

@@ -0,0 +1,34 @@
+load("@scip_java//semanticdb-javac:defs.bzl", "java_library")
+load("@rules_java//java:defs.bzl", "java_plugin")
+
+package(
+    default_visibility = ["//visibility:public"],
+)
+
+java_library(
+	name = "animal",
+	srcs = ["Animal.java"],
+	deps = [
+    ":autovalue",
+	],
+)
+
+java_plugin(
+    name = "autovalue_plugin",
+    processor_class = "com.google.auto.value.processor.AutoValueProcessor",
+    deps = [
+        "@maven//:com_google_auto_value_auto_value",
+    ],
+)
+
+java_library(
+    name = "autovalue",
+    exported_plugins = [
+        ":autovalue_plugin",
+    ],
+    neverlink = 1,
+    exports = [
+        "@maven//:com_google_auto_value_auto_value",
+    ],
+)
+