001/**
002 * PrimitiveGuard.java
003 * 
004 * Copyright (c) 2004-2012, Nicole C. Tedesco. All rights reserved.
005 * 
006 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
007 * use this file except in compliance with the License. You may obtain a copy of
008 * the License at:
009 * 
010 * http://www.apache.org/licenses/LICENSE-2.0
011 * 
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
014 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
015 * License for the specific language governing permissions and limitations under
016 * the License.
017 */
018
019package net.sf.jaccumulator.lex;
020
021import net.sf.jaccumulator.primitives.SealedPrimitive;
022
023/**
024 * Determines whether a {@link PrimitiveAction} signal should be rejected or
025 * accepted within the current context of a specific model
026 * 
027 * @param <MODEL>
028 *        the model type to test against
029 * 
030 * @since JAccumulator 4.0
031 * @author Nicole Tedesco (<a
032 *         href="mailto:nicole@tedesco.name">nicole@tedesco.name</a>)
033 */
034public interface PrimitiveGuard<MODEL>
035    extends
036        RealGuard<MODEL>,
037        TextGuard<MODEL>,
038        NullGuard<MODEL>
039{
040    public boolean acceptPrimitive(
041        final SealedPrimitive<?> aSignal,
042        final MODEL aModel );
043
044    public PrimitiveGuard<MODEL> getPrimitiveGuardAt( final int anIndex )
045        throws IndexOutOfBoundsException;
046
047    public int getPrimitiveGuardChildCount();
048}