| /******************************************************************************* |
| * Copyright (c) 2009, 2017 Cloudsmith Inc. 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: |
| * Cloudsmith Inc. - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.equinox.internal.p2.metadata.expression; |
| |
| import java.util.Iterator; |
| import org.eclipse.equinox.p2.metadata.expression.IEvaluationContext; |
| |
| /** |
| * A collection filter that yields true if the <code>filter</code> yields true for |
| * all of the elements of the <code>collection</code> |
| */ |
| final class All extends CollectionFilter { |
| All(Expression collection, LambdaExpression lambda) { |
| super(collection, lambda); |
| } |
| |
| @Override |
| protected Object evaluate(IEvaluationContext context, Iterator<?> itor) { |
| Variable variable = lambda.getItemVariable(); |
| while (itor.hasNext()) { |
| variable.setValue(context, itor.next()); |
| if (lambda.evaluate(context) != Boolean.TRUE) |
| return Boolean.FALSE; |
| } |
| return Boolean.TRUE; |
| } |
| |
| @Override |
| public int getExpressionType() { |
| return TYPE_ALL; |
| } |
| |
| @Override |
| public String getOperator() { |
| return KEYWORD_ALL; |
| } |
| } |