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SchemaCrawler is an open-source Java API that makes working with database metadata as easy as working with plain old Java objects. SchemaCrawler is also a database schema discovery and comprehension, and schema documentation tool. You can search for database schema objects using regular expressions, and output the schema and data in a readable text format. The output is designed to be diff-ed against other database schemas.

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package sf.util;


/**
 * Represents a predicate (boolean-valued function) of one argument.
 * 
 * This is a functional interface whose functional method is
 * {@link #test(Object)}.
 *
 * @param 
 *        the type of the input to the predicate
 * @since 1.8
 */
// @FunctionalInterface
public interface Predicate
{

  /**
   * Evaluates this predicate on the given argument.
   *
   * @param t
   *        the input argument
   * @return {@code true} if the input argument matches the predicate,
   *         otherwise {@code false}
   */
  boolean test(T t);

}