Create ParameterizedVectorQuery.java

Author: RichardSmedley

modules/devguide/examples/java/ParameterizedVectorQuery.java

@@ -0,0 +1,41 @@
+import com.couchbase.client.core.error.CouchbaseException;
+import com.couchbase.client.java.Cluster;
+import com.couchbase.client.java.ClusterOptions;
+import com.couchbase.client.java.json.JsonObject;
+import com.couchbase.client.java.query.QueryResult;
+import static com.couchbase.client.java.query.QueryOptions.queryOptions;
+
+public class ParameterizedVectorQuery {
+  static String connectionString = "couchbases://cb.<your-endpoint-here>.cloud.couchbase.com";
+  static String username = "Administrator";
+  static String password = "password";
+
+ public static void main(String[] args) throws Exception {
+    Cluster cluster = Cluster.connect(
+    connectionString,
+    ClusterOptions.clusterOptions(username, password).environment(env -> {
+    env.applyProfile("wan-development");
+    })
+    );
+
+    { 
+      try {
+// tag::parameterized[]
+	final QueryResult result = cluster.query(
+	"SELECT d.id, d.question, d.wanted_similar_color_from_search, " + "  ARRAY_CONCAT( "
+        + "d.couchbase_search_query.knn[0].vector[0:4], " + "['...'] " + ") AS vector "
+	    + "FROM `vector-sample`.`color`.`rgb-questions` AS d " + "WHERE d.id = $id;",
+	queryOptions()
+		.metrics(true)
+		.parameters(JsonObject.create().put("id", "#87CEEB")));
+
+        for (JsonObject row : result.rowsAsObject()) {
+          System.out.println(row);
+          }
+// end::parameterized[]
+      } catch (CouchbaseException ex) {
+        ex.printStackTrace();
+      }
+    }
+  }
+}