| /******************************************************************************* |
| * Copyright (c) 2009 Cloudsmith Inc. and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Cloudsmith Inc. - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.equinox.internal.p2.ql; |
| |
| /** |
| * An expression that yields a new collection consisting of all elements of the |
| * <code>collection</code> for which the <code>filter</code> yields <code>true</code>. |
| */ |
| public final class Flatten extends UnaryCollectionFilter { |
| public static final String OPERATOR = "flatten"; //$NON-NLS-1$ |
| |
| public Flatten(Expression collection) { |
| super(collection); |
| } |
| |
| public Object evaluate(ExpressionContext context, VariableScope scope) { |
| return new FlattenIterator(operand.evaluateAsIterator(context, scope)); |
| } |
| |
| String getOperator() { |
| return OPERATOR; |
| } |
| } |
