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Java example source code file (StaticInjectionRequest.java)

This example Java source code file (StaticInjectionRequest.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

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Java - Java tags/keywords

class, configurationexception, element, object, set, staticinjectionrequest, util

The StaticInjectionRequest.java Java example source code

 * Copyright (C) 2008 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,
 * See the License for the specific language governing permissions and
 * limitations under the License.

package com.google.inject.spi;

import static com.google.common.base.Preconditions.checkNotNull;

import com.google.inject.Binder;
import com.google.inject.ConfigurationException;

import java.util.Set;

 * A request to inject the static fields and methods of a type. Requests are created
 * explicitly in a module using {@link com.google.inject.Binder#requestStaticInjection(Class[])
 * requestStaticInjection()} statements:
 * <pre>
 *     requestStaticInjection(MyLegacyService.class);</pre>
 * @author jessewilson@google.com (Jesse Wilson)
 * @since 2.0
public final class StaticInjectionRequest implements Element {
  private final Object source;
  private final Class<?> type;

  StaticInjectionRequest(Object source, Class<?> type) {
    this.source = checkNotNull(source, "source");
    this.type = checkNotNull(type, "type");

  public Object getSource() {
    return source;

  public Class<?> getType() {
    return type;

   * Returns the static methods and fields of {@code type} that will be injected to fulfill this
   * request.
   * @return a possibly empty set of injection points. The set has a specified iteration order. All
   *      fields are returned and then all methods. Within the fields, supertype fields are returned
   *      before subtype fields. Similarly, supertype methods are returned before subtype methods.
   * @throws ConfigurationException if there is a malformed injection point on {@code type}, such as
   *      a field with multiple binding annotations. The exception's {@link
   *      ConfigurationException#getPartialValue() partial value} is a {@code Set<InjectionPoint>}
   *      of the valid injection points.
  public Set<InjectionPoint> getInjectionPoints() throws ConfigurationException {
    return InjectionPoint.forStaticMethodsAndFields(type);

  public void applyTo(Binder binder) {

  public <T> T acceptVisitor(ElementVisitor visitor) {
    return visitor.visit(this);

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