minor plugin version bump + javadoc

Author: slisaasquatch

pom.xml

@@ -112,7 +112,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-source-plugin</artifactId>
-        <version>3.1.0</version>
+        <version>3.2.0</version>
         <executions>
           <execution>
             <id>attach-sources</id>

src/main/java/com/saasquatch/jsonschemainferrer/EnumExtractors.java

@@ -9,14 +9,26 @@
 import javax.annotation.Nonnull;
 import com.fasterxml.jackson.databind.JsonNode;
 
+/**
+ * Utilities for {@link EnumExtractor}
+ *
+ * @author sli
+ */
 public final class EnumExtractors {
 
   private EnumExtractors() {}
 
+  /**
+   * @return a singleton {@link EnumExtractor} that does nothing.
+   */
   public static EnumExtractor noOp() {
     return input -> Collections.emptySet();
   }
 
+  /**
+   * @return an {@link EnumExtractor} that extracts all the textual {@link JsonNode}s that are valid
+   *         names of a Java {@link Enum}.
+   */
   public static <E extends Enum<E>> EnumExtractor validEnum(@Nonnull Class<E> enumClass) {
     Objects.requireNonNull(enumClass);
     return input -> {
@@ -27,6 +39,9 @@ public static <E extends Enum<E>> EnumExtractor validEnum(@Nonnull Class<E> enum
     };
   }
 
+  /**
+   * @return an {@link EnumExtractor} that combines the results of the given {@link EnumExtractor}s
+   */
   public static EnumExtractor chained(@Nonnull EnumExtractor... enumExtrators) {
     for (EnumExtractor enumExtrator : enumExtrators) {
       Objects.requireNonNull(enumExtrator);