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package com.sun.enterprise.web.connector.grizzly;

/**
 * An interface marker used to execute operations before 
 * a <code>AsycnProcesssorTask</code> in pre/post or interrupted. Usualy, 
 * implementation of this interface is called by an instance of 
 * <code>AsyncExecutor</code>.
 *
 * Implementation of this interface must be thread-safe.
 *
 * @author Jeanfrancois Arcand
 */
public interface AsyncFilter {
    
    /**
     * Execute and return <code>true</code> if the next <code>AsyncFilter</code> 
     * can be invoked. Return <code>false</code> to stop calling the 
     * <code>AsyncFilter</code>.
     */
    public boolean doFilter(AsyncExecutor asyncExecutor);
}