org.openid4java.shaded.google.inject.internal.Nullability Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of openid4java-shaded Show documentation

openid4java (Third party dependencies shaded)

There is a newer version: 1.0.0.0

/**
 * Copyright (C) 2010 Google Inc.
 *
 * 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.google.inject.internal;

import java.lang.annotation.Annotation;

/**
 * Whether a member supports null values injected.
 *
 * Support for {@code Nullable} annotations in Guice is loose.
 * Any annotation type whose simplename is "Nullable" is sufficient to indicate
 * support for null values injected.
 *
 * This allows support for JSR-305's
 * 
 * javax.annotation.meta.Nullable annotation and IntelliJ IDEA's
 * 
 * org.jetbrains.annotations.Nullable.
 *
 * @author [email protected] (Jesse Wilson)
 */
public class Nullability {
  private Nullability() {}

  public static boolean allowsNull(Annotation[] annotations) {
    for(Annotation a : annotations) {
      Class type = a.annotationType();
      if ("Nullable".equals(type.getSimpleName())) {
        return true;
      }
    }
    return false;
  }
}