| /******************************************************************************* |
| * Copyright (c) 2007, 2011 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.debug.core.model; |
| |
| /** |
| * This class is used to create a variable/value that displays a warning message |
| * to the user. Currently used to inform users that references are not available |
| * for the current VM. It extends <code>JDINullValue</code> so that most actions |
| * will ignore it, but returns the message instead of "null" for it's value. |
| * |
| * @since 3.3 |
| */ |
| public class JDIPlaceholderValue extends JDINullValue { |
| |
| private String fMessage; |
| |
| /** |
| * Constructor, passes the debug target to the super class. |
| * |
| * @param target |
| * debug target this value belongs to |
| */ |
| public JDIPlaceholderValue(JDIDebugTarget target, String message) { |
| super(target); |
| fMessage = message; |
| } |
| |
| /** |
| * @return the message supplied in the constructor |
| * @see org.eclipse.jdt.internal.debug.core.model.JDINullValue#getValueString() |
| */ |
| @Override |
| public String getValueString() { |
| return fMessage; |
| } |
| |
| /** |
| * @return the message supplied in the constructor |
| * @see org.eclipse.jdt.internal.debug.core.model.JDINullValue#toString() |
| */ |
| @Override |
| public String toString() { |
| return fMessage; |
| } |
| |
| /** |
| * Returns signature for a java string object so that the string message |
| * passed in the constructor is displayed in the detail pane. |
| * |
| * @return signature for a java string object |
| * @see org.eclipse.jdt.internal.debug.core.model.JDINullValue#getSignature() |
| */ |
| @Override |
| public String getSignature() { |
| return "Ljava/lang/String;"; //$NON-NLS-1$ |
| } |
| |
| } |