/*
 * The Apache Software License, Version 1.1
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 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation and was
 * originally based on software copyright (c) 2002, International
 * Business Machines Corporation., http://www.ibm.com.  For more
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package org.apache.xpath.expression;

import org.apache.xpath.datamodel.SequenceType;

/**
 * Represents <em>cast as</em> and <em>treat as</em> expression.
 * Use the method {@link #getExprType()} to differentiate 
 * <em>treat as</em> from <em>cast as</em> expressions.
 * @see <a href="http://www.w3.org/TR/xpath20/#id-cast">
 * XPath 2.0 specification</a>
 */
public interface CastOrTreatAsExpr extends Expr {

	/**
	 * Gets the expression to cast as or to treat as
	 * @return An parentherized expression
	 */
	Expr getExpr();

    /**
     * Gets the type to cast as or to treat as.
     * @return A sequence Type
     */
    SequenceType getSequenceType();

}