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Java example source code file (UntargettedBindingImpl.java)

This example Java source code file (UntargettedBindingImpl.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

assertionerror, bindingimpl, dependency, internalcontext, internalfactory, key, object, override, scoping, string, untargettedbindingimpl

The UntargettedBindingImpl.java Java example source code

/*
 * Copyright (C) 2007 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.base.Objects;
import com.google.inject.Binder;
import com.google.inject.Key;
import com.google.inject.spi.BindingTargetVisitor;
import com.google.inject.spi.Dependency;
import com.google.inject.spi.UntargettedBinding;

final class UntargettedBindingImpl<T> extends BindingImpl implements UntargettedBinding {

  UntargettedBindingImpl(InjectorImpl injector, Key<T> key, Object source) {
    super(injector, key, source, new InternalFactory<T>() {
      public T get(Errors errors, InternalContext context, Dependency<?> dependency, boolean linked) {
        throw new AssertionError();
      }
    }, Scoping.UNSCOPED);
  }

  public UntargettedBindingImpl(Object source, Key<T> key, Scoping scoping) {
    super(source, key, scoping);
  }

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

  public BindingImpl<T> withScoping(Scoping scoping) {
    return new UntargettedBindingImpl<T>(getSource(), getKey(), scoping);
  }

  public BindingImpl<T> withKey(Key key) {
    return new UntargettedBindingImpl<T>(getSource(), key, getScoping());
  }

  public void applyTo(Binder binder) {
    getScoping().applyTo(binder.withSource(getSource()).bind(getKey()));
  }

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

  @Override
  public boolean equals(Object obj) {
    if(obj instanceof UntargettedBindingImpl) {
      UntargettedBindingImpl<?> o = (UntargettedBindingImpl)obj;
      return getKey().equals(o.getKey())
        && getScoping().equals(o.getScoping());
    } else {
      return false;
    }
  }

  @Override
  public int hashCode() {
    return Objects.hashCode(getKey(), getScoping());
  }
}

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