001/**
002 * RealGuard.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 java.math.BigDecimal;
022import java.math.BigInteger;
023
024import net.sf.jaccumulator.reals.SealedReal;
025
026/**
027 * Determines whether a {@link RealAction} signal should be rejected or accepted
028 * within the current context of a specific model
029 * 
030 * @param <MODEL>
031 *        the model type to test against
032 * 
033 * @since JAccumulator 4.0
034 * @author Nicole Tedesco (<a
035 *         href="mailto:nicole@tedesco.name">nicole@tedesco.name</a>)
036 */
037public interface RealGuard<MODEL>
038    extends
039        ScalarGuard<MODEL>
040{
041    public boolean acceptReal( final BigDecimal aSignal, final MODEL aModel );
042
043    public boolean acceptReal( final BigInteger aSignal, final MODEL aModel );
044
045    public boolean acceptReal( final SealedReal<?> aSignal, final MODEL aModel );
046
047    public RealGuard<MODEL> getRealGuardAt( final int anIndex )
048        throws IndexOutOfBoundsException;
049
050    public int getRealGuardChildCount();
051}