How to use

registerMethodFilter

method

in

org.springframework.expression.spel.support.ReflectiveMethodResolver

/**
 * Register a {@code MethodFilter} which will be called during method resolution
 * for the specified type.
 * <p>The {@code MethodFilter} may remove methods and/or sort the methods which
 * will then be used by SpEL as the candidates to look through for a match.
 * @param type the type for which the filter should be called
 * @param filter a {@code MethodFilter}, or {@code null} to unregister a filter for the type
 * @throws IllegalStateException if the {@link ReflectiveMethodResolver} is not in use
 */
public void registerMethodFilter(Class<?> type, MethodFilter filter) throws IllegalStateException {
  initMethodResolvers();
  ReflectiveMethodResolver resolver = this.reflectiveMethodResolver;
  if (resolver == null) {
    throw new IllegalStateException(
        "Method filter cannot be set as the reflective method resolver is not in use");
  }
  resolver.registerMethodFilter(type, filter);
}

/**
 * Register a {@code MethodFilter} which will be called during method resolution
 * for the specified type.
 * <p>The {@code MethodFilter} may remove methods and/or sort the methods which
 * will then be used by SpEL as the candidates to look through for a match.
 * @param type the type for which the filter should be called
 * @param filter a {@code MethodFilter}, or {@code null} to unregister a filter for the type
 * @throws IllegalStateException if the {@link ReflectiveMethodResolver} is not in use
 */
public void registerMethodFilter(Class<?> type, MethodFilter filter) throws IllegalStateException {
  initMethodResolvers();
  ReflectiveMethodResolver resolver = this.reflectiveMethodResolver;
  if (resolver == null) {
    throw new IllegalStateException(
        "Method filter cannot be set as the reflective method resolver is not in use");
  }
  resolver.registerMethodFilter(type, filter);
}

/**
 * Register a {@code MethodFilter} which will be called during method resolution
 * for the specified type.
 * <p>The {@code MethodFilter} may remove methods and/or sort the methods which
 * will then be used by SpEL as the candidates to look through for a match.
 * @param type the type for which the filter should be called
 * @param filter a {@code MethodFilter}, or {@code null} to unregister a filter for the type
 * @throws IllegalStateException if the {@link ReflectiveMethodResolver} is not in use
 */
public void registerMethodFilter(Class<?> type, MethodFilter filter) throws IllegalStateException {
  initMethodResolvers();
  ReflectiveMethodResolver resolver = this.reflectiveMethodResolver;
  if (resolver == null) {
    throw new IllegalStateException(
        "Method filter cannot be set as the reflective method resolver is not in use");
  }
  resolver.registerMethodFilter(type, filter);
}