Added support for internal query hints.

1 files changed, 40 insertions, 0 deletions

diff --git a/src/main/java/com/amazon/carbonado/qe/QueryHint.java b/src/main/java/com/amazon/carbonado/qe/QueryHint.java
new file mode 100644
index 0000000..870eb0b
--- /dev/null
+++ b/src/main/java/com/amazon/carbonado/qe/QueryHint.java
@@ -0,0 +1,40 @@
+/*

+ * Copyright 2008 Amazon Technologies, Inc. or its affiliates.

+ * Amazon, Amazon.com and Carbonado are trademarks or registered trademarks

+ * of Amazon Technologies, Inc. or its affiliates.  All rights reserved.

+ *

+ * Licensed under the Apache License, Version 2.0 (the "License");

+ * you may not use this file except in compliance with the License.

+ * You may obtain a copy of the License at

+ *

+ *     http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Unless required by applicable law or agreed to in writing, software

+ * distributed under the License is distributed on an "AS IS" BASIS,

+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

+ * See the License for the specific language governing permissions and

+ * limitations under the License.

+ */

+

+package com.amazon.carbonado.qe;

+

+/**

+ * Defines a hint key.

+ *

+ * @author Brian S O'Neill

+ * @see QueryHints

+ * @since 1.2

+ */

+public enum QueryHint {

+    /** Intention to consume all matched records */

+    //CONSUME_ALL,

+

+    /** Intention to consume a slice of matched records */

+    CONSUME_SLICE,

+

+    /** Favor low latency for query results */

+    //FAVOR_LATENCY,

+

+    /** Favor high throughput for query results */

+    //FAVOR_THROUGHPUT,

+}