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package org.glassfish.jsp.api;

import javax.servlet.jsp.tagext.JspTag;

/**
 * Interface for injecting injectable resources into tag handler instances.
 *
 * @author Jan Luehe
 */
public interface ResourceInjector {

    /**
     * Instantiates and injects the given tag handler class.
     *
     * @param clazz the tag handler class to be instantiated and injected
     *
     * @throws Exception if an error has occurred during instantiation or
     * injection
     */
    public  T createTagHandlerInstance(Class clazz)
            throws Exception;

    /**
     * Invokes any @PreDestroy methods defined on the instance's class
     * (and super-classes).
     *
     * @param handler The tag handler instance whose @PreDestroy methods
     * to call
     */
    public void preDestroy(JspTag handler);
}