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package org.eclipse.debug.core.model;
/*
* (c) Copyright IBM Corp. 2000, 2001.
* All Rights Reserved.
*/
import org.eclipse.debug.core.DebugException;
/**
* Provides the ability to modify the value of a variable in
* a target.
* <p>
* Clients may implement this interface.
* </p>
* @see IVariable
*/
public interface IValueModification {
/**
* Attempts to set the value of this variable to the
* value of the given expression.
*
* @param expression an expression to generate a new value
* @exception DebugException on failure. Reasons include:<ul>
* <li>TARGET_REQUEST_FAILED - The request failed in the target
* <li>NOT_SUPPORTED - The capability is not supported by the target
* </ul>
*/
public void setValue(String expression) throws DebugException;
/**
* Sets the value of this variable to the given value.
*
* @param value a new value
* @exception DebugException on failure. Reasons include:<ul>
* <li>TARGET_REQUEST_FAILED - The request failed in the target
* <li>NOT_SUPPORTED - The capability is not supported by the target
* </ul>
* @since 2.0
*/
public void setValue(IValue value) throws DebugException;
/**
* Returns whether this variable supports value modification.
*
* @return whether this variable supports value modification
*/
public boolean supportsValueModification();
/**
* Returns whether the given expression is valid to be used in
* setting a new value for this variable.
*
* @param expression an expression to generate a new value
* @return whether the expression is valid
* @exception DebugException on failure. Reasons include:<ul>
* <li>TARGET_REQUEST_FAILED - The request failed in the target
* <li>NOT_SUPPORTED - The capability is not supported by the target
* </ul>
*/
public boolean verifyValue(String expression) throws DebugException;
/**
* Returns whether the given value can be used as
* a new value for this variable.
*
* @param value a new value
* @return whether the value is valid
* @exception DebugException on failure. Reasons include:<ul>
* <li>TARGET_REQUEST_FAILED - The request failed in the target
* <li>NOT_SUPPORTED - The capability is not supported by the target
* </ul>
* @since 2.0
*/
public boolean verifyValue(IValue value) throws DebugException;
}
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