/*
 * Copyright 2020 LINE Corporation
 *
 * LINE Corporation licenses this file to you 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:
 *
 *   https://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.linecorp.decaton.processor.runtime;

import java.util.Optional;

/**
 * Represents interface of suppliers that provides a {@link Property} accordingly to the
 * {@link PropertyDefinition} passed as an argument.
 */
@FunctionalInterface
public interface PropertySupplier {
    /**
     * Returns a {@link Property} associated to the given {@link PropertyDefinition} in underlying system.
     *
     * @param definition the {@link PropertyDefinition} of the property wants to bind to the returned
     * {@link Property}.
     * @param <T> the type of the property
     * @return a {@link Property} associated to the value provided by underlying system.
     */
    <T> Optional<Property<T>> getProperty(PropertyDefinition<T> definition);
}
