1 /*
2 * Copyright 2007-2008 the original author or authors.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package org.gwe.p2elv2.functions;
18
19 import java.util.List;
20
21 import org.gwe.p2elv2.PFunction;
22 import org.gwe.p2elv2.PStatementContext;
23 import org.gwe.p2elv2.PVarValueSpace;
24
25 /**
26 * @author Marco Ruiz
27 * @since Aug 4, 2008
28 */
29 public class PFCount extends PFunction {
30
31 public PFCount() { super("count"); }
32
33 public PVarValueSpace calculateValues(List<String> params, PStatementContext ctx) {
34 PVarValueSpace result = new PVarValueSpace();
35 int count = Integer.parseInt(params.get(0)) + 1;
36 for (int idx = 1; idx < count; idx++) result.add("" + idx);
37 return result;
38 }
39 }
40