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/*
 * 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.spi;

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

import com.google.common.base.MoreObjects;
import com.google.inject.Binder;
import com.google.inject.Scope;
import com.google.inject.internal.Errors;
import java.lang.annotation.Annotation;

/**
 * Registration of a scope annotation with the scope that implements it. Instances are created
 * explicitly in a module using {@link com.google.inject.Binder#bindScope(Class, Scope) bindScope()}
 * statements:
 *
 * 
 *     Scope recordScope = new RecordScope();
 *     bindScope(RecordScoped.class, new RecordScope());
* * @author [email protected] (Jesse Wilson) * @since 2.0 */ public final class ScopeBinding implements Element { private final Object source; private final Class annotationType; private final Scope scope; ScopeBinding(Object source, Class annotationType, Scope scope) { this.source = checkNotNull(source, "source"); this.annotationType = checkNotNull(annotationType, "annotationType"); this.scope = checkNotNull(scope, "scope"); } @Override public Object getSource() { return source; } public Class getAnnotationType() { return annotationType; } public Scope getScope() { return scope; } @Override public T acceptVisitor(ElementVisitor visitor) { return visitor.visit(this); } @Override public void applyTo(Binder binder) { binder.withSource(getSource()).bindScope(annotationType, scope); } @Override public String toString() { return MoreObjects.toStringHelper(ScopeBinding.class) .add("annotationType", annotationType) .add("scope", scope) .add("source", Errors.convert(source)) .toString(); } }




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