All Downloads are FREE. Search and download functionalities are using the official Maven repository.

io.prestosql.jdbc.$internal.guava.reflect.Element Maven / Gradle / Ivy

The newest version!
/*
 * Copyright (C) 2012 The Guava Authors
 *
 * 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 io.prestosql.jdbc.$internal.guava.reflect;

import static io.prestosql.jdbc.$internal.guava.base.Preconditions.checkNotNull;

import java.lang.annotation.Annotation;
import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Member;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Represents either a {@link Field}, a {@link Method} or a {@link Constructor}. Provides
 * convenience methods such as {@link #isPublic} and {@link #isPackagePrivate}.
 *
 * @author Ben Yu
 */
class Element extends AccessibleObject implements Member {

  private final AccessibleObject accessibleObject;
  private final Member member;

   Element(M member) {
    checkNotNull(member);
    this.accessibleObject = member;
    this.member = member;
  }

  public TypeToken getOwnerType() {
    return TypeToken.of(getDeclaringClass());
  }

  @Override
  public final boolean isAnnotationPresent(Class annotationClass) {
    return accessibleObject.isAnnotationPresent(annotationClass);
  }

  @Override
  public final  A getAnnotation(Class annotationClass) {
    return accessibleObject.getAnnotation(annotationClass);
  }

  @Override
  public final Annotation[] getAnnotations() {
    return accessibleObject.getAnnotations();
  }

  @Override
  public final Annotation[] getDeclaredAnnotations() {
    return accessibleObject.getDeclaredAnnotations();
  }

  @Override
  public final void setAccessible(boolean flag) throws SecurityException {
    accessibleObject.setAccessible(flag);
  }

  @Override
  public final boolean isAccessible() {
    return accessibleObject.isAccessible();
  }

  @Override
  public Class getDeclaringClass() {
    return member.getDeclaringClass();
  }

  @Override
  public final String getName() {
    return member.getName();
  }

  @Override
  public final int getModifiers() {
    return member.getModifiers();
  }

  @Override
  public final boolean isSynthetic() {
    return member.isSynthetic();
  }

  /** Returns true if the element is public. */
  public final boolean isPublic() {
    return Modifier.isPublic(getModifiers());
  }

  /** Returns true if the element is protected. */
  public final boolean isProtected() {
    return Modifier.isProtected(getModifiers());
  }

  /** Returns true if the element is package-private. */
  public final boolean isPackagePrivate() {
    return !isPrivate() && !isPublic() && !isProtected();
  }

  /** Returns true if the element is private. */
  public final boolean isPrivate() {
    return Modifier.isPrivate(getModifiers());
  }

  /** Returns true if the element is static. */
  public final boolean isStatic() {
    return Modifier.isStatic(getModifiers());
  }

  /**
   * Returns {@code true} if this method is final, per {@code Modifier.isFinal(getModifiers())}.
   *
   * 

Note that a method may still be effectively "final", or non-overridable when it has no * {@code final} keyword. For example, it could be private, or it could be declared by a final * class. To tell whether a method is overridable, use {@link Invokable#isOverridable}. */ public final boolean isFinal() { return Modifier.isFinal(getModifiers()); } /** Returns true if the method is abstract. */ public final boolean isAbstract() { return Modifier.isAbstract(getModifiers()); } /** Returns true if the element is native. */ public final boolean isNative() { return Modifier.isNative(getModifiers()); } /** Returns true if the method is synchronized. */ public final boolean isSynchronized() { return Modifier.isSynchronized(getModifiers()); } /** Returns true if the field is volatile. */ final boolean isVolatile() { return Modifier.isVolatile(getModifiers()); } /** Returns true if the field is transient. */ final boolean isTransient() { return Modifier.isTransient(getModifiers()); } @Override public boolean equals(@Nullable Object obj) { if (obj instanceof Element) { Element that = (Element) obj; return getOwnerType().equals(that.getOwnerType()) && member.equals(that.member); } return false; } @Override public int hashCode() { return member.hashCode(); } @Override public String toString() { return member.toString(); } }





© 2015 - 2024 Weber Informatics LLC | Privacy Policy