org.xacml4j.v30.AttributeExp Maven / Gradle / Ivy

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package org.xacml4j.v30;

/*
 * #%L
 * Xacml4J Core Engine Implementation
 * %%
 * Copyright (C) 2009 - 2014 Xacml4J.org
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Lesser Public License for more details.
 * 
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * .
 * #L%
 */

import java.io.Serializable;


public interface AttributeExp
	extends ValueExpression, Serializable
{
	/**
	 * Gets attribute type
	 *
	 * @return {@link AttributeExpType}
	 */
	@Override
	AttributeExpType getType();

	/**
	 * Gets attribute expression value
	 *
	 * @return an attribute expression value
	 */
	Object getValue();

	/**
	 * Creates bag with this attribute in the bag
	 *
	 * @return {@link BagOfAttributeExp}
	 */
	BagOfAttributeExp toBag();

	public interface AttributeExpVisitor extends ExpressionVisitor
	{
		void visitEnter(AttributeExp v);
		void visitLeave(AttributeExp v);
	}
}