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 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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
 *
 *   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
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package org.apache.sling.scripting.sightly;

import java.util.Set;

import org.osgi.annotation.versioning.ConsumerType;

/**
 * A {@code Record} is a key-value immutable object understood by the HTL runtime, used for abstracting complex objects like Sightly
 * templates (declared with the {@code data-sly-template} block element) or objects that need to be translated from Java to JavaScript
 * and back.
 *
 * @param <T> the type of values for this record
 */
@ConsumerType
public interface Record<T> {

    /**
     * Gets the value of a specified property.
     *
     * @param name the name of the property
     * @return the value of the property or {@code null} if this record does not have the specified property
     */
    T getProperty(String name);

    /**
     * Gets the set of names for this record's properties.
     *
     * @return this record's properties' names
     */
    Set<String> getPropertyNames();

}