| /******************************************************************************* |
| * Copyright (c) 2009, 2010 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.metadata.expression; |
| |
| import org.eclipse.equinox.p2.metadata.expression.IEvaluationContext; |
| |
| /** |
| * n-ary OR operator. The full evaluation is <code>false</code> if none of its operands |
| * evaluate to <code>true</code>. |
| */ |
| final class Or extends NAry { |
| public Or(Expression[] operands) { |
| super(assertLength(operands, 2, OPERATOR_OR)); |
| } |
| |
| public Object evaluate(IEvaluationContext context) { |
| for (int idx = 0; idx < operands.length; ++idx) { |
| if (operands[idx].evaluate(context) == Boolean.TRUE) |
| return Boolean.TRUE; |
| } |
| return Boolean.FALSE; |
| } |
| |
| public int getExpressionType() { |
| return TYPE_OR; |
| } |
| |
| public String getOperator() { |
| return OPERATOR_OR; |
| } |
| |
| public int getPriority() { |
| return PRIORITY_OR; |
| } |
| |
| public void toLDAPString(StringBuffer buf) { |
| buf.append("(|"); //$NON-NLS-1$ |
| for (int idx = 0; idx < operands.length; ++idx) |
| operands[idx].toLDAPString(buf); |
| buf.append(')'); |
| } |
| } |