| /******************************************************************************* |
| * 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.expression; |
| |
| import org.eclipse.equinox.internal.p2.metadata.expression.Expression; |
| import org.eclipse.equinox.p2.metadata.Version; |
| |
| /** |
| * A function that creates a {@link Version} from a string |
| */ |
| public final class VersionFunction extends Function { |
| |
| public VersionFunction(Expression[] operands) { |
| super(assertLength(operands, 1, 1, KEYWORD_VERSION)); |
| } |
| |
| boolean assertSingleArgumentClass(Object v) { |
| return v instanceof String; |
| } |
| |
| Object createInstance(Object arg) { |
| return Version.create((String) arg); |
| } |
| |
| public String getOperator() { |
| return KEYWORD_VERSION; |
| } |
| } |