| /******************************************************************************* |
| * Copyright (c) 2007, 2015 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.ui.heapwalking; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.debug.core.DebugException; |
| import org.eclipse.debug.core.model.IVariable; |
| import org.eclipse.debug.internal.ui.views.variables.IndexedVariablePartition; |
| import org.eclipse.debug.ui.actions.IWatchExpressionFactoryAdapterExtension; |
| import org.eclipse.jdt.internal.debug.core.model.JDIArrayEntryVariable; |
| import org.eclipse.jdt.internal.debug.core.model.JDIPlaceholderValue; |
| import org.eclipse.jdt.internal.debug.core.model.JDIReferenceListEntryVariable; |
| import org.eclipse.jdt.internal.debug.core.model.JDIReferenceListVariable; |
| |
| /** |
| * Uses the <code>IWatchExpressionFactoryAdapterExtension</code> to filter when the watch expression |
| * action is available based on the variable selected. |
| * |
| * Currently removes the action from <code>JDIPlaceholderVariable</code>s and <code>JDIReferenceListVariable</code>s. |
| * |
| * @since 3.3 |
| */ |
| public class JavaWatchExpressionFilter implements IWatchExpressionFactoryAdapterExtension { |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.ui.actions.IWatchExpressionFactoryAdapterExtension#canCreateWatchExpression(org.eclipse.debug.core.model.IVariable) |
| */ |
| @Override |
| public boolean canCreateWatchExpression(IVariable variable) { |
| if (variable instanceof JDIReferenceListVariable || variable instanceof JDIReferenceListEntryVariable || |
| variable instanceof JDIArrayEntryVariable || variable instanceof IndexedVariablePartition){ |
| return false; |
| } |
| try{ |
| if (variable.getValue() instanceof JDIPlaceholderValue){ |
| return false; |
| } |
| } catch (DebugException e) {} |
| return true; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.ui.actions.IWatchExpressionFactoryAdapter#createWatchExpression(org.eclipse.debug.core.model.IVariable) |
| */ |
| @Override |
| public String createWatchExpression(IVariable variable) throws CoreException { |
| return variable.getName(); |
| } |
| |
| } |