CLIENTS-1063: Added equals() and hashCode in YokozunaIndex.

Author: christopherfrieler

src/main/java/com/basho/riak/client/core/query/search/YokozunaIndex.java

@@ -15,6 +15,8 @@
  */
 package com.basho.riak.client.core.query.search;
 
+import java.util.Objects;
+
 /**
  * Represents a Yokozuna Index.
  *
@@ -115,4 +117,23 @@ public Integer getNVal()
     {
         return nVal;
     }
+
+    @Override
+    public boolean equals(Object other) {
+        if (this == other) {
+            return true;
+        }
+        if (!(other instanceof YokozunaIndex)) {
+            return false;
+        }
+        YokozunaIndex otherYokozunaIndex = (YokozunaIndex) other;
+        return Objects.equals(name, otherYokozunaIndex.name) &&
+                Objects.equals(schema, otherYokozunaIndex.schema) &&
+                Objects.equals(nVal, otherYokozunaIndex.nVal);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(name, schema, nVal);
+    }
 }

src/test/java/com/basho/riak/client/core/query/search/YokozunaIndexTest.java

@@ -0,0 +1,27 @@
+package com.basho.riak.client.core.query.search;
+
+import org.junit.Test;
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.CoreMatchers.not;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+public class YokozunaIndexTest {
+	@Test
+	public void equalsReturnsTrueForEqualYokozunaIndices() {
+		YokozunaIndex yokozunaIndex1 = new YokozunaIndex("name", "schema").withNVal(3);
+		YokozunaIndex yokozunaIndex2 = new YokozunaIndex("name", "schema").withNVal(3);
+
+		assertThat(yokozunaIndex1, is(equalTo(yokozunaIndex2)));
+		assertThat(yokozunaIndex2, is(equalTo(yokozunaIndex1)));
+	}
+
+	@Test
+	public void equalsReturnsFalseForDifferentYokozunaIndices() {
+		YokozunaIndex yokozunaIndex1 = new YokozunaIndex("name1", "schema1").withNVal(3);
+		YokozunaIndex yokozunaIndex2 = new YokozunaIndex("name2", "schema2").withNVal(5);
+
+		assertThat(yokozunaIndex1, is(not(equalTo(yokozunaIndex2))));
+		assertThat(yokozunaIndex2, is(not(equalTo(yokozunaIndex1))));
+	}
+}