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/*
* 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.Objects;
import com.google.common.collect.ImmutableSet;
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.HasDependencies;
import com.google.inject.spi.ProviderKeyBinding;
import java.util.Set;
final class LinkedProviderBindingImpl<T>
extends BindingImpl<T> implements ProviderKeyBinding<T>, HasDependencies, DelayedInitialize {
final Key<? extends javax.inject.Provider<? extends T>> providerKey;
final DelayedInitialize delayedInitializer;
private LinkedProviderBindingImpl(InjectorImpl injector, Key<T> key, Object source,
InternalFactory<? extends T> internalFactory, Scoping scoping,
Key<? extends javax.inject.Provider<? extends T>> providerKey,
DelayedInitialize delayedInitializer) {
super(injector, key, source, internalFactory, scoping);
this.providerKey = providerKey;
this.delayedInitializer = delayedInitializer;
}
public LinkedProviderBindingImpl(InjectorImpl injector, Key<T> key, Object source,
InternalFactory<? extends T> internalFactory, Scoping scoping,
Key<? extends javax.inject.Provider<? extends T>> providerKey) {
this(injector, key, source, internalFactory, scoping, providerKey, null);
}
LinkedProviderBindingImpl(Object source, Key<T> key, Scoping scoping,
Key<? extends javax.inject.Provider<? extends T>> providerKey) {
super(source, key, scoping);
this.providerKey = providerKey;
this.delayedInitializer = null;
}
static <T> LinkedProviderBindingImpl<T> createWithInitializer(InjectorImpl injector, Key<T> key,
Object source, InternalFactory<? extends T> internalFactory, Scoping scoping,
Key<? extends javax.inject.Provider<? extends T>> providerKey,
DelayedInitialize delayedInitializer) {
return new LinkedProviderBindingImpl<T>(injector, key, source, internalFactory, scoping,
providerKey, delayedInitializer);
}
public <V> V acceptTargetVisitor(BindingTargetVisitor<? super T, V> visitor) {
return visitor.visit(this);
}
public Key<? extends javax.inject.Provider<? extends T>> getProviderKey() {
return providerKey;
}
public void initialize(InjectorImpl injector, Errors errors) throws ErrorsException {
if (delayedInitializer != null) {
delayedInitializer.initialize(injector, errors);
}
}
public Set<Dependency<?>> getDependencies() {
return ImmutableSet.<Dependency<?>>of(Dependency.get(providerKey));
}
public BindingImpl<T> withScoping(Scoping scoping) {
return new LinkedProviderBindingImpl<T>(getSource(), getKey(), scoping, providerKey);
}
public BindingImpl<T> withKey(Key<T> key) {
return new LinkedProviderBindingImpl<T>(getSource(), key, getScoping(), providerKey);
}
public void applyTo(Binder binder) {
getScoping().applyTo(binder.withSource(getSource())
.bind(getKey()).toProvider(getProviderKey()));
}
@Override public String toString() {
return Objects.toStringHelper(ProviderKeyBinding.class)
.add("key", getKey())
.add("source", getSource())
.add("scope", getScoping())
.add("provider", providerKey)
.toString();
}
@Override
public boolean equals(Object obj) {
if(obj instanceof LinkedProviderBindingImpl) {
LinkedProviderBindingImpl<?> o = (LinkedProviderBindingImpl<?>)obj;
return getKey().equals(o.getKey())
&& getScoping().equals(o.getScoping())
&& Objects.equal(providerKey, o.providerKey);
} else {
return false;
}
}
@Override
public int hashCode() {
return Objects.hashCode(getKey(), getScoping(), providerKey);
}
}
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