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Java example source code file (ExposedBindingImpl.java)

This example Java source code file (ExposedBindingImpl.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.

Learn more about this Java project at its project page.

Java - Java tags/keywords

exposedbindingimpl, internalfactory, key, object, override, privateelements, set, string, this, unsupportedoperationexception, util

The ExposedBindingImpl.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,
 * 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 com.google.common.base.MoreObjects;
import com.google.common.collect.ImmutableSet;
import com.google.inject.Binder;
import com.google.inject.Injector;
import com.google.inject.Key;
import com.google.inject.spi.BindingTargetVisitor;
import com.google.inject.spi.Dependency;
import com.google.inject.spi.ExposedBinding;
import com.google.inject.spi.PrivateElements;

import java.util.Set;

public final class ExposedBindingImpl<T> extends BindingImpl implements ExposedBinding {

  private final PrivateElements privateElements;

  public ExposedBindingImpl(InjectorImpl injector, Object source, Key<T> key,
      InternalFactory<T> factory, PrivateElements privateElements) {
    super(injector, key, source, factory, Scoping.UNSCOPED);
    this.privateElements = privateElements;
  }

  public <V> V acceptTargetVisitor(BindingTargetVisitor visitor) {
    return visitor.visit(this);
  }

  public Set<Dependency getDependencies() {
    return ImmutableSet.<Dependencyof(Dependency.get(Key.get(Injector.class)));
  }

  public PrivateElements getPrivateElements() {
    return privateElements;
  }

  @Override public String toString() {
    return MoreObjects.toStringHelper(ExposedBinding.class)
        .add("key", getKey())
        .add("source", getSource())
        .add("privateElements", privateElements)
        .toString();
  }

  public void applyTo(Binder binder) {
    throw new UnsupportedOperationException("This element represents a synthetic binding.");
  }
  
  // Purposely does not override equals/hashcode, because exposed bindings are only equal to
  // themselves right now -- that is, there cannot be "duplicate" exposed bindings.
}

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