/*******************************************************************************
 * 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.debug.core.DebugException;
 
/**
 * A register group is a group of registers that are
 * assigned to a stack frame. Some debug architectures
 * provide access to registers, and registers are often
 * grouped logically. For example, a floating point
 * register group. 
 * 
 * @since 2.0
 */
public interface IRegisterGroup extends IDebugElement {
	

	/**
	 * Returns the name of this register group.
	 * 
	 * @return this register group's name
	 * @exception DebugException if this method fails.  Reasons include:
	 * <ul><li>Failure communicating with the debug target.  The DebugException's
	 * status code contains the underlying exception responsible for
	 * the failure.</li>
	 */
	public String getName() throws DebugException;
	
	/**
	 * Returns the registers in this register group.
	 * 
	 * @return the registers in this register group
	 * @exception DebugException if this method fails.  Reasons include:
	 * <ul><li>Failure communicating with the debug target.  The DebugException's
	 * status code contains the underlying exception responsible for
	 * the failure.</li>
	 */
	public IRegister[] getRegisters() throws DebugException;
	
	/**
	 * Returns whether this register group currently contains any registers.
	 * 
	 * @return whether this register group currently contains any registers
	 * @exception DebugException if this method fails.  Reasons include:
	 * <ul><li>Failure communicating with the debug target.  The DebugException's
	 * status code contains the underlying exception responsible for
	 * the failure.</li>
	 */
	public boolean hasRegisters() throws DebugException;	

}