Add ability to have optional params

Issue-ID: AAI-651
Change-Id: I4b70aff0d7b683f6b31fe6eeaba14e8eaeee5463
Signed-off-by: Venkata Harish K Kajur <vk250x@att.com>

2 files changed, 38 insertions, 0 deletions

diff --git a/aai-core/src/main/java/org/onap/aai/query/builder/MissingOptionalParameter.java b/aai-core/src/main/java/org/onap/aai/query/builder/MissingOptionalParameter.java
new file mode 100644
index 00000000..b2d32056
--- /dev/null
+++ b/aai-core/src/main/java/org/onap/aai/query/builder/MissingOptionalParameter.java
@@ -0,0 +1,34 @@
+package org.onap.aai.query.builder;
+
+/*-
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+
+public class MissingOptionalParameter {
+
+	    private MissingOptionalParameter() {}
+
+	    private static class Helper {
+	        static final MissingOptionalParameter INSTANCE = new MissingOptionalParameter();
+	    }
+
+	    public static MissingOptionalParameter getInstance() {
+	        return Helper.INSTANCE;
+	    }
+	}
diff --git a/aai-core/src/main/java/org/onap/aai/query/builder/QueryBuilder.java b/aai-core/src/main/java/org/onap/aai/query/builder/QueryBuilder.java
index 5f91a44f..f5d47871 100644
--- a/aai-core/src/main/java/org/onap/aai/query/builder/QueryBuilder.java
+++ b/aai-core/src/main/java/org/onap/aai/query/builder/QueryBuilder.java
@@ -384,5 +384,9 @@ public abstract class QueryBuilder<E> implements Iterator<E> {
 
 	public abstract List<E> toList();
 	
+	public QueryBuilder<Vertex> getVerticesByProperty(String key, MissingOptionalParameter value) {
+		return (QueryBuilder<Vertex>) this;
+	}
+
 		
 }