Add Strings Example

Author: bsbodden

src/test/java/io/redis/examples/StringExample.java

@@ -0,0 +1,75 @@
+// EXAMPLE: set_tutorial
+package io.redis.examples;
+
+//REMOVE_START
+import org.junit.Test;
+import static org.junit.Assert.*;
+//REMOVE_END
+
+import redis.clients.jedis.UnifiedJedis;
+import redis.clients.jedis.params.SetParams;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class StringExample {
+    @Test
+    public void run() {
+        try (UnifiedJedis jedis = new UnifiedJedis("redis://localhost:6379")) {
+
+            // STEP_START set_get
+            String res1 = jedis.set("bike:1", "Deimos");
+            System.out.println(res1); // OK
+            String res2 = jedis.get("bike:1");
+            System.out.println(res2); // Deimos
+            // STEP_END
+
+            // REMOVE_START
+            assertEquals("OK", res1);
+            assertEquals("Deimos", res2);
+            // REMOVE_END
+
+            // STEP_START setnx_xx
+            Long res3 = jedis.setnx("bike:1", "bike");
+            System.out.println(res3); // 0 (because key already exists)
+            System.out.println(jedis.get("bike:1")); // Deimos (value is unchanged)
+            String res4 = jedis.set("bike:1", "bike", SetParams.setParams().xx()); // set the value to "bike" if it
+                                                                                   // already
+                                                                                   // exists
+            System.out.println(res4); // OK
+            // STEP_END
+
+            // REMOVE_START
+            assertEquals(0L, res3.longValue());
+            assertEquals("OK", res4);
+            // REMOVE_END
+
+            // STEP_START mset
+            String res5 = jedis.mset("bike:1", "Deimos", "bike:2", "Ares", "bike:3", "Vanth");
+            System.out.println(res5); // OK
+            List<String> res6 = jedis.mget("bike:1", "bike:2", "bike:3");
+            System.out.println(res6); // [Deimos, Ares, Vanth]
+            // STEP_END
+
+            // REMOVE_START
+            assertEquals("OK", res5);
+            List<String> expected = new ArrayList<>(Arrays.asList("Deimos", "Ares", "Vanth"));
+            assertEquals(expected, res6);
+            // REMOVE_END
+
+            // STEP_START incr
+            jedis.set("total_crashes", "0");
+            Long res7 = jedis.incr("total_crashes");
+            System.out.println(res7); // 1
+            Long res8 = jedis.incrBy("total_crashes", 10);
+            System.out.println(res8); // 11
+            // STEP_END
+
+            // REMOVE_START
+            assertEquals(1L, res7.longValue());
+            assertEquals(11L, res8.longValue());
+            // REMOVE_END
+        }
+    }
+}