diff options
Diffstat (limited to 'feature-pooling-dmaap/src/main/java/org/onap/policy/drools/pooling/extractor/Extractor.java')
-rw-r--r-- | feature-pooling-dmaap/src/main/java/org/onap/policy/drools/pooling/extractor/Extractor.java | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/feature-pooling-dmaap/src/main/java/org/onap/policy/drools/pooling/extractor/Extractor.java b/feature-pooling-dmaap/src/main/java/org/onap/policy/drools/pooling/extractor/Extractor.java new file mode 100644 index 00000000..9ed32ae4 --- /dev/null +++ b/feature-pooling-dmaap/src/main/java/org/onap/policy/drools/pooling/extractor/Extractor.java @@ -0,0 +1,35 @@ +/* + * ============LICENSE_START======================================================= + * ONAP + * ================================================================================ + * Copyright (C) 2018 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========================================================= + */ + +package org.onap.policy.drools.pooling.extractor; + +/** + * Used to extract an object contained within another object. + */ +public interface Extractor { + + /** + * Extracts an object contained within another object. + * + * @param object object from which to extract the contained object + * @return the extracted value, or {@code null} if it cannot be extracted + */ + public Object extract(Object object); +} |