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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.sling.scripting.api;

/**
 * The {@code ScriptCache} service interface defines a cache for compiled scripts. Implementations of this interface should be thread-safe.
 */
public interface ScriptCache {

    /**
     * Retrieves the {@link CachedScript} corresponding to the script accessible from the {@code scriptPath}.
     *
     * @param scriptPath the path from where the script can be accessed
     * @return the {@link CachedScript} if one exists, {@code null} otherwise
     */
    CachedScript getScript(String scriptPath);

    /**
     * Stores a {@link CachedScript} in the cache. If a previous version of it exist in the cache it is overridden.
     *
     * @param script the {@link CachedScript} that should be stored in the cache
     */
    void putScript(CachedScript script);

    /**
     * Empties the cache.
     */
    void clear();

    /**
     * Removes the script identified by {@code scriptPath} from the cache.
     *
     * @param scriptPath the path from where the script can be accessed
     * @return {@code true} if a script was cached from that path and was removed, {@code false} otherwise
     */
    boolean removeScript(String scriptPath);

}