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A JSR-330 spec compliant dependency injection framework.

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/*
 * Copyright (C) 2016-2017 the original author or authors.
 *
 * 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 io.github.pustike.inject.impl;

import jakarta.inject.Provider;
import jakarta.inject.Singleton;

import io.github.pustike.inject.BindingKey;
import io.github.pustike.inject.Scope;

/**
 * Scopes supported by default.
 */
final class Scopes {
    /**
     * A binding with scope {@code PER_CALL} will create a new instance, whenever the binding is used to inject a value.
     */
    static final String PER_CALL = "PER_CALL"; // or PROTOTYPE

    static Scope createPerCallScope() {
        return new Scope() {
            @Override
            public  Provider scope(BindingKey bindingKey, Provider creator) {
                return creator;
            }

            @Override
            public String toString() {
                return PER_CALL;
            }
        };
    }

    /**
     * A binding with scope {@code SINGLETON} will create a single instance, which is injected whenever the
     * binding is used to inject a value.
     */
    static final String SINGLETON = Singleton.class.getName();

    /**
     * A binding with scope {@code EAGER_SINGLETON} will create a single instance, which is injected whenever the
     * binding is used to inject a value. The instance will be created immediately after configuring the injector.
     */
    static final String EAGER_SINGLETON = "EAGER_SINGLETON";

    private Scopes() {
    }
}