| /******************************************************************************* | |
| * Copyright (c) 2008-2018 The University of York. | |
| * This program and the accompanying materials | |
| * are made available under the terms of the Eclipse Public License 2.0 | |
| * which is available at https://www.eclipse.org/legal/epl-2.0/ | |
| * | |
| * Contributors: | |
| * Dimitrios Kolovos - initial API and implementation | |
| * Sina Madani - refactoring | |
| ******************************************************************************/ | |
| package org.eclipse.epsilon.eol.execute.operations.declarative; | |
| import java.util.List; | |
| import org.eclipse.epsilon.eol.dom.Expression; | |
| import org.eclipse.epsilon.eol.dom.NameExpression; | |
| import org.eclipse.epsilon.eol.dom.Parameter; | |
| import org.eclipse.epsilon.eol.exceptions.EolRuntimeException; | |
| import org.eclipse.epsilon.eol.execute.context.IEolContext; | |
| public class ExistsOperation extends SelectBasedOperation { | |
| @Override | |
| public Boolean execute(Object target, NameExpression operationNameExpression, List<Parameter> iterators, List<Expression> expressions, IEolContext context) throws EolRuntimeException { | |
| return !getDelegateOperation().execute(true, true, target, operationNameExpression, iterators, expressions, context).isEmpty(); | |
| } | |
| } |