| /* |
| * 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.inject.Binder; |
| import com.google.inject.Key; |
| import com.google.inject.internal.util.ImmutableSet; |
| import com.google.inject.internal.util.Objects; |
| import com.google.inject.internal.util.ToStringBuilder; |
| import com.google.inject.spi.BindingTargetVisitor; |
| import com.google.inject.spi.Dependency; |
| import com.google.inject.spi.HasDependencies; |
| import com.google.inject.spi.LinkedKeyBinding; |
| import java.util.Set; |
| |
| public final class LinkedBindingImpl<T> extends BindingImpl<T> implements LinkedKeyBinding<T>, HasDependencies { |
| |
| final Key<? extends T> targetKey; |
| |
| public LinkedBindingImpl(InjectorImpl injector, Key<T> key, Object source, |
| InternalFactory<? extends T> internalFactory, Scoping scoping, |
| Key<? extends T> targetKey) { |
| super(injector, key, source, internalFactory, scoping); |
| this.targetKey = targetKey; |
| } |
| |
| public LinkedBindingImpl(Object source, Key<T> key, Scoping scoping, Key<? extends T> targetKey) { |
| super(source, key, scoping); |
| this.targetKey = targetKey; |
| } |
| |
| public <V> V acceptTargetVisitor(BindingTargetVisitor<? super T, V> visitor) { |
| return visitor.visit(this); |
| } |
| |
| public Key<? extends T> getLinkedKey() { |
| return targetKey; |
| } |
| |
| public Set<Dependency<?>> getDependencies() { |
| return ImmutableSet.<Dependency<?>>of(Dependency.get(targetKey)); |
| } |
| |
| public BindingImpl<T> withScoping(Scoping scoping) { |
| return new LinkedBindingImpl<T>(getSource(), getKey(), scoping, targetKey); |
| } |
| |
| public BindingImpl<T> withKey(Key<T> key) { |
| return new LinkedBindingImpl<T>(getSource(), key, getScoping(), targetKey); |
| } |
| |
| public void applyTo(Binder binder) { |
| getScoping().applyTo(binder.withSource(getSource()).bind(getKey()).to(getLinkedKey())); |
| } |
| |
| @Override public String toString() { |
| return new ToStringBuilder(LinkedKeyBinding.class) |
| .add("key", getKey()) |
| .add("source", getSource()) |
| .add("scope", getScoping()) |
| .add("target", targetKey) |
| .toString(); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if(obj instanceof LinkedBindingImpl) { |
| LinkedBindingImpl<?> o = (LinkedBindingImpl<?>)obj; |
| return getKey().equals(o.getKey()) |
| && getScoping().equals(o.getScoping()) |
| && Objects.equal(targetKey, o.targetKey); |
| } else { |
| return false; |
| } |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hashCode(getKey(), getScoping(), targetKey); |
| } |
| } |