Regex.java

/*
 * Copyright Aduna (http://www.aduna-software.com/) (c) 1997-2006.
 *
 * Licensed under the Aduna BSD-style license.
 */
package org.openrdf.query.algebra;


/**
 * Compares the string representation of a value expression to a pattern.
 */
public class Regex extends BinaryValueOperator {

	/*-----------*
	 * Variables *
	 *-----------*/

	private ValueExpr flagsArg;

	/*--------------*
	 * Constructors *
	 *--------------*/

	public Regex() {
	}

	public Regex(ValueExpr expr, ValueExpr pattern, ValueExpr flags) {
		super(expr, pattern);
		setFlagsArg(flags);
	}

	/*---------*
	 * Methods *
	 *---------*/

	public ValueExpr getArg() {
		return super.getLeftArg();
	}

	public void setArg(ValueExpr leftArg) {
		super.setLeftArg(leftArg);
	}

	public ValueExpr getPatternArg() {
		return super.getRightArg();
	}

	public void setPatternArg(ValueExpr rightArg) {
		super.setRightArg(rightArg);
	}

	public void setFlagsArg(ValueExpr flags) {
		this.flagsArg = flags;
	}

	public ValueExpr getFlagsArg() {
		return flagsArg;
	}

	public <X extends Exception> void visit(QueryModelVisitor<X> visitor)
		throws X
	{
		visitor.meet(this);
	}

	@Override
	public <X extends Exception> void visitChildren(QueryModelVisitor<X> visitor)
		throws X
	{
		super.visitChildren(visitor);
		if (flagsArg != null) {
			flagsArg.visit(visitor);
		}
	}

	@Override
	public Regex clone() {
		Regex clone = (Regex)super.clone();
		if (flagsArg != null) {
			clone.setFlagsArg(flagsArg.clone());
		}
		return clone;
	}
}