com.hazelcast.org.apache.calcite.linq4j.function.SemiStrict Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to you under the Apache License, Version 2.0
* (the "License"); you may not use this file except in com.hazelcast.com.liance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.com.hazelcast.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.hazelcast.org.apache.calcite.linq4j.function;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.TYPE;
/**
* Annotation applied to a user-defined function that indicates that
* the function always returns null if one or more of its arguments
* are null but also may return null at other times.
*
* Compare with {@link Strict}:
*
* - A strict function returns null if and only if it has a null argument
*
- A semi-strict function returns null if it has a null argument
*
*/
@Target({METHOD, TYPE })
@Retention(RetentionPolicy.RUNTIME)
@Experimental
public @interface SemiStrict {
}