org.jetbrains.annotations.NotNull Maven / Gradle / Ivy
/*
* Copyright 2010-2013 JetBrains s.r.o.
*
* 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 org.jetbrains.annotations;
import java.lang.annotation.*;
/**
* An element annotated with NotNull claims null value is forbidden
* to return (for methods), pass to (parameters) and hold (local variables and fields).
* Apart from documentation purposes this annotation is intended to be used by static analysis tools
* to validate against probable runtime errors and element contract violations.
*/
@Documented
@Retention(RetentionPolicy.CLASS)
@Target({ElementType.METHOD, ElementType.FIELD, ElementType.PARAMETER, ElementType.LOCAL_VARIABLE})
public @interface NotNull {
String value() default "";
}