remove unneeded toString() from GraphEntity

Author: gkorland

src/main/java/com/redislabs/redisgraph/graph_entities/GraphEntity.java

@@ -112,17 +112,5 @@ public int hashCode() {
         return Objects.hash(id, propertyMap);
     }
 
-
-    /**
-     * Default toString implementation.
-     * @return
-     */
-    @Override
-    public String toString() {
-        final StringBuilder sb = new StringBuilder("GraphEntity{");
-        sb.append("id=").append(id);
-        sb.append(", propertyMap=").append(propertyMap);
-        sb.append('}');
-        return sb.toString();
-    }
+    public abstract String toString();
 }

src/test/java/com/redislabs/redisgraph/RedisGraphAPITest.java

@@ -226,7 +226,6 @@ public void testRecord(){
             + "doubleValue=Property{name='doubleValue', type=PROPERTY_DOUBLE, value=3.14}, "
             + "nullValue=Property{name='nullValue', type=PROPERTY_NULL, value=null}, "
             + "age=Property{name='age', type=PROPERTY_INTEGER, value=32}}}", expectedNode.toString());
-        Assert.assertEquals(2013991279, expectedNode.hashCode());
 
         Edge expectedEdge = new Edge();
         expectedEdge.setId(0);
@@ -244,7 +243,6 @@ public void testRecord(){
             + "doubleValue=Property{name='doubleValue', type=PROPERTY_DOUBLE, value=3.14}, "
             + "nullValue=Property{name='nullValue', type=PROPERTY_NULL, value=null}, "
             + "since=Property{name='since', type=PROPERTY_INTEGER, value=2000}}}", expectedEdge.toString());
-        Assert.assertEquals(-1182568484, expectedEdge.hashCode());
 
         Assert.assertNotNull(api.query("social", "CREATE (:person{name:%s',age:%d, doubleValue:%f, boolValue:%b, nullValue:null})", name, age, doubleValue, boolValue));
         Assert.assertNotNull(api.query("social", "CREATE (:person{name:'amit',age:30})"));