/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.debug.core.model;


import org.eclipse.core.resources.IMarker;
import org.eclipse.core.runtime.CoreException;


/**
 * Abstract implementation of a line breakpoint. This class is
 * intended to be subclassed by debug model specific implementations
 * of line breakpoints.
 * 
 * @see ILineBreakpoint
 */

public abstract class LineBreakpoint extends Breakpoint implements ILineBreakpoint {
	

	/**
	 * @see ILineBreakpoint#getLineNumber()
	 */
	public int getLineNumber() throws CoreException {
		IMarker m = getMarker();
		if (m != null) {
			return m.getAttribute(IMarker.LINE_NUMBER, -1);
		}
		return -1;
	}

	/**
	 * @see ILineBreakpoint#getCharStart()
	 */
	public int getCharStart() throws CoreException {
		IMarker m = getMarker();
		if (m != null) {
			return m.getAttribute(IMarker.CHAR_START, -1);
		}
		return -1;
	}

	/**
	 * @see ILineBreakpoint#getCharEnd()
	 */
	public int getCharEnd() throws CoreException {
		IMarker m = getMarker();
		if (m != null) {
			return m.getAttribute(IMarker.CHAR_END, -1);
		}
		return -1;
	}
}

